Resolution No. 2019-050RESOLUTION NO. 2019-50
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF VERNON
MAKING EXPRESS FINDINGS AND DETERMINATIONS THAT
MODIFICATIONS TO THE FOLLOWING CALIFORNIA BUILDINGS
STANDARDS CODE: THE 2019 CALIFORNIA BUILDING CODE,
24 CCR PART 2; THE 2019 CALIFORNIA ELECTRICAL CODE,
24 CCR PART 3; THE 2019 CALIFORNIA MECHANICAL CODE,
24 CCR PART 4; THE 2019 CALIFORNIA PLUMBING CODE, 24
CCR PART 5; THE 2019 CALIFORNIA EXISTING BUILDING
CODE, 24 CCR PART 10; THE 2019 CALIFORNIA RESIDENTIAL
CODE, 24 CCR PART 2.5; THE 2019 CALIFORNIA GREEN
BUILDING STANDARDS CODE ALSO CALLED THE CALGREEN
CODE, 24 CCR PART 11; THE 2019 CALIFORNIA ENERGY CODE,
24 CCR PART 6; THE 2006 EDITION OF THE INTERNATIONAL
CODE COUNCIL ELECTRICAL CODE ADMINISTRATIVE
PROVISIONS; AND THE 2018 INTERNATIONAL EXISTING
BUILDING CODE ARE REASONABLY NECESSARY BECAUSE OF
LOCAL CLIMATIC, GEOLOGICAL OR TOPOGRAPHICAL
CONDITIONS
WHEREAS, Health and Safety Code Section 17958 provides that
the City of Vernon may adopt ordinances and regulations imposing the same
or modified requirements as are contained in the regulations adopted by
the State pursuant to Health and Safety Code Section 17922; and
WHEREAS, the State of California is mandated by Health and
Safety Code Section 17922 to impose the same requirements as are contained
in the most recent edition of the California Building Code, the California
Electrical Code, the California Mechanical Code, the California Plumbing
Code, the California Existing Building Code, the California Residential
Code, the California Green Building Standards Code, the California Energy
Code, the California Administrative Code, the California Historical
Building Code, and the California Reference Standards Code (hereinafter
referred to collectively as "Codes"); and
WHEREAS, Health and Safety Code Section 17958.5 permits the
City to make modifications or changes to the Codes, which are reasonably
necessary because of local climatic, geological or topographical
conditions; and
WHEREAS, Health and Safety Code Section 17958.7(a) requires
that the City Council, before making any modifications or changes to the
Codes, shall make an express finding that such changes or modifications
are reasonably necessary because of local climatic, geological or
topographical conditions; and
WHEREAS, modification to administrative sections of the Codes
are proposed to be made in order to clarify the responsibility of the
permittee, permit fees, Appeals Board and other provisions which do not
modify the Building Standards pursuant to Health and Safety Code Sections
17958, 17958.5 and 17958.7; and
WHEREAS, the City of Vernon is also adopting the 2006 ICC
Electrical Code Administrative Provisions and the 2018 International
Existing Building Code with modifications; and
WHEREAS, the City Council of the City of Vernon desires to
express its finding that such changes or modifications to the Codes are
reasonably necessary because of local climatic, geological, or
topographical conditions.
NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY
OF VERNON AS FOLLOWS:
SECTION 1: The City Council of the City of Vernon finds that
this action is exempt under the California Environmental Quality Act
(CEQA), because it is not considered a "project" under CEQA which is
defined as an action directly undertaken by a public agency which has
the potential for resulting in either a direct physical change in the
environment or a reasonably foreseeable indirect physical change in the
environment. Guidelines section 15378(a); Cal. Pub. Res. Code section
-2-
21065. Under the proposed resolution, no such activity is being
undertaken. Even if the resolution were to be considered a "project"
under CEQA, which is not the case, the resolution would be covered by
the general rule set forth in CEQA Guidelines Section 15061(b)(3) which
provides that CEQA applies only to projects which have the potential for
causing a significant effect on the environment. Where it can be seen
with certainty that there is no possibility that the activity in question
may have a significant effect on the environment, the activity is not
subject to CEQA. Here, the resolution involves making express findings
and determinations that modifications to each Code are reasonably
necessary due to local climatic, geological, or topographical conditions
and will not have any effect on the environment.
SECTION 2: The Public Works Department has recommended that
changes and modifications be made to the Codes and have advised that
certain said changes and modifications to the 2019 Editions of the
California Building, Electrical, Mechanical, Plumbing, Existing
Building, Residential, Green Building Standards, and Energy Codes, the
2006 ICC Electrical Code Administrative Provisions, and the 2018
International Existing Building Code are reasonably necessary to clarify
administrative provisions or due to local conditions in the City of
Vernon as described below:
A. Climatic Conditions. Adverse climatic conditions and
strong winds such as those in existence in the City of Vernon increase
the likelihood of fire spreading (conflagration) from one building to
another.
B. Geological Conditions. Geological conditions in the City
of Vernon are affected by the nearby location of earthquake faults that
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can create tremendous loss of life and property in the City.
C. Topographical Conditions. Topographical conditions of the
City of Vernon coupled with the density of buildings, limited setbacks,
narrow access to buildings and narrow streets potentially create a
problem for governmental agencies to respond to emergency conditions.
SECTION 3: Amendments to the 2019 Editions of the California
Building, Electrical, Mechanical, Plumbing, Existing Building,
Residential, Green Building Standards, and Energy Codes, the 2006 ICC
Electrical Code Administrative Provisions and the 2018 International
Existing Building Code as contained in City of Vernon Ordinance No. 1261,
are found reasonably necessary based on the climatic, geological and/or
topographical conditions cited above in Paragraphs A, B and C of Section
1 of this Resolution and for administrative clarification are listed in
Exhibit A of this resolution.
SECTION 9: The City Council of the City of Vernon hereby
expresses its finding that such changes or modifications to the
California Building Code, the California Electrical Code, the California
Mechanical Code, the California Plumbing Code, the California Existing
Building Code, the California Residential Code, the California Green
Building Standards Code, and the California Energy Code, are reasonably
necessary because of local climatic, geological or topographical
conditions.
SECTION 5: This Resolution shall take effect upon the
effective date of Ordinance No. 1261.
4-
SECTION 6: The City Clerk of the City of Vernon shall certify
to the passage, approval and adoption of this resolution, and the City
Clerk of the City of Vernon shall cause this resolution and the City
Clerk's certification to be entered in the File of Resolutions of the
Council of this City.
APPROVED AND ADOPTED this 5th day of November, 2019.
-Mee/wt �akA�
Name: Melissa A. Ybarra
ATTEST:
d' y►- ft
Lisa Pope, City Clerk
APPROVED AS TO FORM:
i
Bri yun,
Senior Deputy City Attorney
-5-
Title: Mayor / ' - - -
STATE OF CALIFORNIA )
) as
COUNTY OF LOS ANGELES )
I, Lisa Pope, City Clerk of the City of Vernon, do hereby certify
that the foregoing Resolution, being Resolution No. 2019-50, was duly
passed, approved and adopted by the City Council of the City of Vernon
at a regular meeting of the City Council duly held on Tuesday, November
5, 2019, and thereafter was duly signed by the Mayor or Mayor Pro-Tem of
the City of Vernon.
Executed this L day of November, 2019 at Vernon, California.
Lisa Pop ity Clerk
(SEAL)
EXHIBIT A
EXHIBIT A
FINDINGS AND JUSTIFICATIONS FOR AMENDMENTS TO THE 2019 CALIFORNIA
BUILDING STANDARDS CODE
The Public Works Department have recommended that changes and modifications be made to the Codes
and have advised that certain said changes and modifications to the 2019 Editions of the California Building,
Electrical, Mechanical, Plumbing, Existing Building, Residential, Green Building Standards, and Energy
Codes are reasonably necessary due to local conditions in the City of Vernon as described below. Although
findings are not necessary for the 2006 ICC Electrical Code Administrative Provisions and the 2018
International Existing Building Code, they are also set forth herein to further clarify that they are reasonably
necessary due to local conditions in the City of Vernon.
Key to Justifications for Amendments to the 2019 California Building Standards Code
A) Administrative. Amendments are necessary for administrative clarification. They do not modify a
Building Standard pursuant to Sections 17958, 17958.5, and 17958.7 of the California Health and
Safety Code. This amendment establishes administrative standards for the effective enforcement of
building standards throughout the City of Vernon.
B) Climatic. Amendments arejustifted on the basis of local climatic conditions. The seasonal climatic
conditions during the late summer and fall create severe fire hazards to the public health and welfare
in the City of Vernon. The hot, dry weather in combination with Santa Ana winds results in extreme
fire conditions for the community and increase the likelihood of fire spreading (conflagration) from
one building to another. These conditions combined with local geological characteristics create
hazardous conditions which warrant departure from the California Building Standards Code.
C) Geological. Amendments arejustified on the basis of local geological conditions. The City of Vernon
is subject to earthquake hazards caused by its location in an active seismic activity area. Faults which
potentially cause seismic activity in the City include the Whittier Fault to the east, the Raymond
Fault to the north, and the Newport -Inglewood Fault to the west. Said faults are generally considered
major Southern California earthquake faults which may experience rupture at any time. Such
geological conditions can create tremendous loss of life and structures in the City. Since the City is
within a seismic area that includes these earthquake faults, the modifications and changes cited are
designed to better limit property damage as a result of seismic activity and to establish criteria for
repair of damaged property following a local emergency.
D) Topographical. This amendment is justified on the basis of local topographical conditions. The
density of buildings, limited setbacks, narrow'access to buildings, and narrow streets potentially
create a problem for governmental agencies to respond to emergency conditions in the City of
Vernon. Additionally, long periods of dry, hot weather, combined with unpredictable seasonal winds
(Santa Ana wind conditions) result in increased exposure to fire risk. The heavy rains tend to over -
saturate the soil for a short period during the year, having a detrimental effect on in -ground structures
affected by fluctuating moisture conditions.
Amendments to the 2019 Editions of the California Building, Electrical, Mechanical, Plumbing, Existing
Building, Residential, Green Building Standards, Energy Codes, the 2006 ICC Electrical Code
Administrative Provisions and the 2018 International Existing Building Code, are found reasonably
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necessary based on the climatic, geological and/or topographical conditions cited above and for
administrative clarification are listed as follows:
Building Code
Local Condition
Explanation and Findines
Section
105.8
Administrative
Rationale — Section 105.8 establishes the responsibilities of
the permittee ensuring that the work is carved out in
accordance with the approved plans, the code and any other
law or regulation.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
110.7
Administrative
Rationale — This section permits the City to charge re -
inspection fees for specific instances where the permittee has
caused additional work for the City inspector and created the
need for an additional site inspection.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
111.1
Climatic,
Rationale — Many buildings within the City are left in unsafe
Geological,
condition when they are vacated by the prior tenant. In order
Topographical
to ensure the safety of the next occupant the City must
inspect the building to determine if is safe to occupy in its
current condition or if illegal work has been performed that
must be properly permitted. In addition, due to the
uniqueness of business that operate in Vernon the City must
ensure that the structure complies with the requirements of
the code for the proposed occupancy. This may include
proper number of plumbing fixtures, appropriate storage
heights, proper fire systems and appropriate facilities to store
or utilize hazardous materials. Because of these factors the
City requires each new occupant to obtain a certificate of
occupancy for its specific use.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another,
8-
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city, and;
The density of buildings, limited setbacks, narrow access to
buildings and narrow streets in the City of Vernon could
potentially impact governmental agencies response to
emergency conditions.
202
Climatic and
Rationale - There is an abundant supply of unused
Geological
intermodal shipping containers, particularly in jurisdictions
that have ports, that have created negative impacts on the
environment. This results in more materials that are not
recycled and increases energy consumption required to melt
down and recycle others that are. The repurposing of existing
intermodal shipping containers will help to reduce the
environmental impact and improve the sustainability of the
community by being less reliant on traditional construction
material.
This amendment is based on a similar code provision
adopted into the 2021 Edition of the International Building
Code. It is intended to address the environmental impact of
unused materials, reduce consumption of traditional raw
materials, minimize non -industrial wastes, and ensure
minimum design and safety standards associated with the
repurposing of existing intermodal shipping containers as
buildings or structures or component of buildings and
structures are achieved.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another;
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city.
1505.1
Climatic
Rationale - Section 1505.1 is amended to allow only certain
classes of roofs to be installed to the City. Due the tight
spacing of large industrial buildings it is appropriate that
only roofs with fire resistive properties be installed in the cite
to reduce the potential of the spread of fire in a wind storm.
Findiny-s - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another
9-
1507.3.1
Geological
Rationale - Section 1507.3.1 is amended to require concrete
and clay tiles to be installed only over solid sheathing. The
change is necessary because there were numerous
observations of tile roofs pulling away from wood framed
buildings following the 1994 Northridge Earthquake. The
SEAOSC/LA City Post Northridge Earthquake committee
findings indicated significant problems with tile roofs were
due to inadequate design and/or construction. Therefore, the
amendment is needed to minimize such occurrences in the
event of future significant earthquakes.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
1613.5. and
Geological
Rationale - Observed damages to one- and two-family
1613.5.1
dwellings of light frame construction after the Northridge
Earthquake may have been partially attributed to vertical
irregularities common to this type of occupancy and
construction. In an effort to improve quality of construction
and incorporate lesson learned from studies after the
Northridge Earthquake, the proposed modification to ASCE
7-16 Section 12.2.3.1 Exception 3 by limiting the number of
stories and height of the structure to two stories will
significantly minimize the impact of vertical irregularities
and concentration of inelastic behavior from mixed structural
systems. This proposed amendment is a continuation of an
amendment adopted during previous code adoption cycles.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
1613.5.2
Geological
Rationale - Ajoint Structural Engineers Association of
Southern California (SEAOSC), Los Angeles County and
Los Angeles City Task Force investigated the performance
of concrete and masonry construction with flexible wood
diaphragm failures after the Northridge earthquake. It was
concluded at that time that continuous ties are needed at
specified spacing to control cross grain tension in the
interior of the diaphragm. Additionally, there was a need to
limit subdiaphragm allowable shear loads to control
combined orthogonal stresses within the diaphragm.
Recognizing the importance and need to continue the
recommendation made by the task force while taking into
consideration the improved performances and standards for
diaphragm construction today, this proposal increases the
continuous tie spacing limit to 40 ft in lieu of 25 ft and to
use 75% of the allowable code diaphragm shear to
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determine the depth of the sub -diaphragm in lieu of the 300
plf and is deemed appropriate and acceptable. Due to the
frequency of this type of failure during the past significant
earthquakes, various jurisdictions within the Los Angeles
region have taken this additional step to prevent roof or
floor diaphragms from pulling away from concrete or
masonry walls. This proposed amendment is a continuation
of an amendment adopted during previous code adoption
cycles.
Finding - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous
loss of life and structures in the city.
1613.5.3
Geological
Rationale — The inclusion of the importance factor in this
equation has the unintended consequence of reducing the
minimum seismic separation distance for important
facilities such as hospitals, schools, police and fire stations
from adjoining structures. The proposal to omit the
importance factor from Equation 12.12-1 will ensure that a
safe seismic separation distance is provided. This proposed
amendment is a continuation of an amendment adopted
during previous code adoption cycles.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
1613.7
Geological
Rational - The California Building Code has little to no
information regarding the safe design and construction
requirements for ceiling suspension systems subject to
seismic loads. It is through the experience of prior
earthquakes, such as the Northridge Earthquake, that this
amendment is proposed so as to minimize the amount of
bodily and building damage within the spaces in which this
type of ceiling will be installed. This proposed amendment
complements ASCE 7-16 Chapter 13 Section 13.5.6.2.2 and
the cited reference to ASTM E580. The amended
requirements retained herein are a continuation of portions
of an amendment adopted during the previous code
adoption cy c les.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous
loss of life and structures in the city.
1704.6
Geological
Rationale — The language in Section 1704.6 of the California
Building Code permits the owner to employ any registered
design professional to perform structural observations with
minimum guideline. However, it is im clan[ to reco '
that the registered design professional responsible for the
structural design has thorough knowledge of the building
he/she designed. By requiring the registered design
professional responsible for the structural design or their
designee who was involved with the design to observe the
construction, the quality of the observation for major
structural elements and connections that affect the vertical
and lateral load resisting systems of the structure will greatly
be increased. Additional requirements are provided to help
clarify the role and duties of the structural observer and the
method of reporting and correcting observed deficiencies to
the building official. This proposed amendment is a
continuation of an amendment adopted during previous code
adoption cycles.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
1704.6.2
Geological
Rationale - With the higher seismic demand placed on
buildings and structures in this region, the language in
Section 1704.6.2 of the California Building Code would
permit many low-rise buildings and structures with
complex structural elements to be constructed without the
benefit of a structaml observation. By requiring a registered
design professional to observe the construction, the quality
of the observation for major structural elements and
connections that affect the vertical and lateral load resisting
systems of the structure will greatly be increased. An
exception is provided to permit simple structures and
buildings to be excluded. This proposed amendment is a
continuation of an amendment adopted during previous
code adoption cycles.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
1705.3
Geological
Rationale — Results from studies after the 1994 Northridge
Earthquake indicated that a lot of the damage was attributed
to a lack of quality control during construction resulting in
poor performance of the building or structure. Therefore,
the proposed amendment requires special inspection for
concrete with a compressive strength greater than 2,500
pounds per square inch. This proposed amendment is a
continuation of an amendment adopted during previous
code adoption cycles.
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Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
1705.12
Geological
Rationale - In Southern California, very few detached one -
or two-family dwellings not exceeding two stories above
grade plane are built as "box -type" structures, especially
those in hillside areas and near the oceanfront. Many steel
moment frames or braced frames and/or cantilevered
columns within buildings can still be shown as "regular"
structures by calculations. With the higher seismic demand
placed on buildings and structures in this region, the
language in Section 1705.12 Exception 3 of the California
Building Code would permit many detached one- or two-
family dwellings not exceeding two stories above grade
plane with complex structural elements to be constructed
without the benefit of special inspections. By requiring
special inspections, the quality of major structural elements
and connections that affect the vertical and lateral load
resisting systems of the structure will greatly be increased.
The exception should only be allowed for detached one- or
two-family dwellings not exceeding two stories above grade
plane assigned to Seismic Design Category A, B and C.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
1807.1.4
Climatic and
Rationale - No substantiating data has been provided to
Geological
show that wood foundation systems are effective in
supporting buildings and structures during a seismic event
while being subject to deterioration caused by the combined
detrimental effects of constant moisture in the soil and
wood -destroying organisms. Wood foundation systems not
properly treated and protected against deterioration, have
performed very poorly and have led to slope failures. Most
contractors are typically accustomed to construction in dry
and temperate weather in the Southern California region
and are not generally familiar with the necessary
precautions and treatment of wood that makes it suitable for
both seismic events and wet applications. The proposed
amendment takes the precautionary steps to reduce or
eliminate potential problems that may result in using wood
foundation systems that experience relatively rapid decay
due to the fact that the region does not experience
temperatures cold enough to destroy or retard the growth
and proliferation of wood -destroying organisms. This
proposed amendment is a continuation of an amendment
adopted during previous code adoption cycles.
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Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another.
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city.
1807.1.6
Geological
Rationale - With the higher seismic demand placed on
buildings and structures in this region, it is deemed necessary
to take precautionary steps to reduce or eliminate potential
problems that may result by following prescriptive design
provisions that does not take into consideration the
surrounding environment. Plain concrete performs poorly in
withstanding the cyclic forces resulting from seismic events.
In addition, no substantiating data has been provided to show
that under -reinforced foundation walls are effective in
resisting seismic loads and may potentially lead to a higher
risk of failure. It is important that the benefit and expertise of
a registered design professional be obtained to properly
analyze the structure and take these issues into consideration.
This proposed amendment is a continuation of an
amendment adopted during previous code adoption cycles.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
1807.2
Climatic and
Rationale - No substantiating data has been provided to show
Geological
that wood foundation systems are effective in supporting
buildings and structures during a seismic event while being
subject to deterioration caused by the combined detrimental
effects of constant moisture in the soil and wood -destroying
organisms. Wood foundation systems not properly treated
and protected against deterioration, have performed very
poorly and have led to slope failures. Most contractors are
typically accustomed to construction in dry and temperate
weather in the Southern California region and are not
generally familiar with the necessary precautions and
treatment of wood that makes it suitable for both seismic
events and wet applications. The proposed amendment takes
the precautionary steps to reduce or eliminate potential
problems that may result in using wood foundation systems
that experience relatively rapid decay due to the fact that the
region does not experience temperatures cold enough to
destroy or retard the growth and proliferation of wood-
destro in or anisms. This ro sed amendment is a
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continuation of an amendment adopted during previous code
adoption cycles.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another.
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city.
1907.3.1
Climatic and
Rationale - No substantiating data has been provided to show
Geological
that wood foundation systems are effective in supporting
buildings and structures during a seismic event while being
subject to deterioration caused by the combined detrimental
effects of constant moisture in the soil and wood -destroying
organisms. Wood foundation systems not properly treated
and protected against deterioration, have performed very
poorly and have led to slope failures. Most contractors are
typically accustomed to construction in dry and temperate
weather in the Southern California region and are not
generally familiar with the necessary precautions and
treatment of wood that makes it suitable for both seismic
events and wet applications. The proposed amendment takes
the precautionary steps to reduce or eliminate potential
problems that may result in using wood foundation systems
that experience relatively rapid decay due to the fact that the
region does not experience temperatures cold enough to
destroy or retard the growth and proliferation of wood -
destroying organisms. This proposed amendment is a
continuation of an amendment adopted during previous code
adoption cycles.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another.
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city.
1809.3
Geological
Rationale - With the higher seismic demand placed on
buildings and structures in this region, precautionary steps
are proposed to reduce or eliminate potential problems that
may result for under reinforced footings located on sloped
surfaces. Requiring minimum reinforcement for stepped
footings is intended to address the problem of poor
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performance of plain or under -reinforced footings during a
seismic event. This proposed amendment is a continuation of
an amendment adopted during previous code adoption
cycles.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
1809.7 and Table
Geological
Rationale - No substantiating data has been provided to show
1809.7
that under -reinforced footings are effective in resisting
seismic loads and may potentially lead to a higher risk of
failure. Therefore, this proposed amendment requires
minimum reinforcement in continuous footings to address
the problem of poor performance of plain or under -
reinforced footings during a seismic event. With the higher
seismic demand placed on buildings and structures in this
region, precautionary steps are proposed to reduce or
eliminate potential problems that may result by following
prescriptive design provisions for footing that does not take
into consideration the surrounding environment. It was
important that the benefit and expertise of a registered design
professional be obtained to properly analyze the structure
and take these issues into consideration. This amendment
reflects the recommendations by the Structural Engineers
Association of Southern California (SEAOSC) and the Los
Angeles City Task Force that investigated the poor
performance observed in the 1994 Northridge Earthquake.
This proposed amendment is a continuation of an
amendment adopted during previous code adoption cycles.
Finding - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
1809.12
Climatic and
Rationale - No substantiating data has been provided to show
Geological
that timber footings are effective in supporting buildings and
structures during a seismic event, especially while being
subjected to deterioration caused by the combined
detrimental effects of moisture in the soil and wood -
destroying organisms. Timber footings, when they are not
properly treated and protected against deterioration, have
performed very poorly. Most contractors are typically
accustomed to construction in dry and temperate weather in
the Southern California region and are not generally familiar
with the necessary precautions and treatment of wood that
makes it suitable for both seismic event and wet applications.
The proposed amendment takes the precautionary steps to
reduce or eliminate potential problems that may result b
-16-
using timber footings that experience relatively rapid decay
due to the face that the region does not experience
temperatures cold enough to destroy or retard the growth and
proliferation of wood -destroying organisms. This proposed
amendment is a continuation of an amendment adopted
during previous code adoption cycles.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another.
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city.
1810.3.2.4
Climatic and
Rationale - No substantiating data has been provided to show
Geological
that timber deep foundation is effective in supporting
buildings and structures during a seismic event while being
subject to deterioration caused by the combined detrimental
effect of constant moisture in the soil and wood -destroying
organisms. Timber deep foundation, when they are not
properly treated and protected against deterioration, has
performed very poorly. Most contractors are typically
accustomed to construction in dry and temperate weather in
the Southern California region and are not generally familiar
with the necessary precautions and treatment of wood that
makes it suitable for both seismic event and wet applications.
The proposed amendment takes the precautionary steps to
reduce or eliminate potential problems that may result by
using timber deep foundation that experience relatively rapid
decay due to the face that the region does not experience
temperatures cold enough to destroy or retard the growth and
proliferation of wood -destroying organisms. This proposed
amendment is a continuation of an amendment adopted
during previous code adoption cycles.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another.
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city.
1905.1.7
Geological
Rationale - This proposed amendment requires minimum
reinforcement in continuous footings to address the
problem of poor performance of plain or under -reinforced
-17-
footings during a seismic event. This amendment reflects
the recommendations by the Structural Engineers
Association of Southern California (SEAOSC) and the Los
Angeles City Joint Task Force that investigated the poor
performance observed in 1994 Northridge Earthquake. This
proposed amendment is a continuation of an amendment
adopted during previous code adoption cycles.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
1905.1 and 1905.1.9
Geological
Rationale — This amendment is intended to carry over critical
thru 1905.1.11
provisions for the design of concrete columns in moment
frames from the legacy 1997 Uniform Building Code.
Increased confinement is critical to the integrity of such
columns and these modifications ensure that it is provided
when certain thresholds are exceeded.
In addition, this amendment carries over from the legacy
1997 Uniform Building Code a critical provision for the
design of concrete shear walls. It essentially limits the use of
very highly gravity -loaded walls in being included in the
seismic load resisting system, since their failure could have
catastrophic effect on the building.
Furthermore, this amendment was incorporated in the code
based on observations from the 1994 Northridge Earthquake.
Rebar placed in very thin concrete topping slabs have been
observed in some instances to have popped out of the slab
due to insufficient concrete coverage. This modification
ensures that critical boundary and collector rebars are placed
in sufficiently thick topping slab to prevent buckling of such
reinforcements.
This proposed amendment is a continuation of an
amendment adopted during previous code adoption cycles.
Findings — The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
2304.10.1
Geological
Rationale - Due to the high geologic activities in the
Southern California area and the expected higher level of
performance on buildings and structures, this proposed local
amendment limit the use of staple fasteners in resisting or
transferring seismic forces. In September 2007, limited
cyclic testing data was provided to the ICC Los Angeles
Chapter Structural Code Committee showing that stapled
-18-
wood structural shear panels do not exhibit the same
behavior as the nailed wood structural shear panels. The test
results of the stapled wood structural shear panels appeared
much lower in strength and drift than the nailed wood
structural shear panel test results. Therefore, the use of
staples as fasteners to resist or transfer seismic forces shall
not be permitted without being substantiated by cyclic
testing. This proposed amendment is a continuation of a
similar amendment adopted during previous code adoption
cycles.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
2304.10.2.1
Geological
Rationale — The overdriving of nails into the structural wood
panel still remains a concern when pneumatic nail guns are
used for wood structural panel shear wall nailing. Box nails
were observed to cause massive and multiple failures of the
typical 3/8-inch thick plywood during the 1994 Northridge
Earthquake. The use of clipped head nails as allowed in
Table Al of AFPA SDPWS footnote referencing to ASTM
F1667, continues to be restricted from being used in wood
structural panel shear walls where the minimum nail head
size must be maintained in order to minimize nails from
pulling through sheathing materials. Clipped or
mechanically driven nails used in wood structural panel
shear wall construction were found to have much lower
performance in wood structural panel shear wall testing done
at the University of California Irvine. The existing test results
indicated that, under cyclic loading, the wood structural
panel shear walls were less energy absorbent and less ductile.
The panels reached ultimate load capacity and failed at
substantially less lateral deflection than those using same
size hand -driven nails. This amendment reflects the
recommendations by the Structural Engineers Association of
Southern California (SEAOSC) and the Los Angeles City
Joint Task Force that investigated the poor performance
observed in 1994 Northridge Earthquake. This proposed
amendment is a continuation of an amendment adopted
during previous code adoption cycles.
Findings - The City of Vemon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
2304.12.5
Climatic and
Rationale - No substantiating data has been provided to show
Geological
that wood used in retaining or crib walls are effective in
supporting buildings and structures during a seismic event
-19-
while being subject to deterioration caused by the combined
detrimental effect of constant moisture in the soil and wood -
destroying organisms. Wood used in retaining or crib walls,
when they are not properly treated and protected against
deterioration, have performed very poorly. Most contractors
are typically accustomed to construction in dry and
temperate weather in the Southern California region and are
not generally familiar with the necessary precautions and
treatment of wood that makes it suitable for both seismic
event and wet applications. The proposed amendment takes
the precautionary steps to reduce or eliminate potential
problems that may result by using wood in retaining or crib
walls that experience relatively rapid decay due to the fact
that the region does not experience temperatures cold enough
to destroy or retard the growth and proliferation of wood -
destroying organisms. This proposed amendment is a
continuation of an amendment adopted during previous code
adoption cycles.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another.
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city.
2305.4
Geological
Rationale - ICC-ES AC 155 Acceptance Criteria for Hold-
downs (Tie -Downs) Attached to Wood Members is widely
used to establish allowable values for hold-down connectors
in evaluation reports. AC 155 uses monotonic loading to
establish allowable values. Yet, cyclic and dynamic forces
imparted on buildings and structures by seismic activity
cause more damage than equivalent forces that are applied in
a monotonic manner. However, the engineering, regulatory
and manufacturing industries have not reached consensus on
the appropriate cyclic or dynamic testing protocols. This
condition is expected to continue for some time. In the
interim, this proposed amendment continues to limit the
allowable capacity to 75% of the evaluation report value to
provide an additional factor of safety for statically tested
anchorage devices. Steel plate washers will reduce the
additional damage that can result when hold-down
connectors are fastened to wood framing members. This
amendment reflects the recommendations by the Structural
Engineers Association of Southern California (SEAOSC)
and the Los Angeles City Joint Task Force that investigated
-20-
the poor performance observed in 1994 Northridge
Earthquake. This proposed amendment is a continuation of
an amendment adopted during previous code adoption cycles
with additional editorial revisions for clarification.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
2306.2
Geological
Rationale - The Structural Engineers Association of
Southern California (SEAOSC) and the Los Angeles City
Joint Task Force that investigated the damages to buildings
and structures during the 1994 Northridge Earthquake
recommended reducing allowable shear values in wood
structural panel shear walls or diaphragms that were not
substantiated by cyclic testing. That recommendation was
consistent with a report to the Governor from the Seismic
Safety Commission of the State of California recommending
that code requirements be "more thoroughly substantiated
with testing." The allowable shear values for wood structural
panel shear walls or diaphragms fastened with staples are
based on monotonic testing and does not take into
consideration that earthquake forces load shear wall or
diaphragm in a repeating and fully reversible manner.
In September 2007, limited cyclic testing was conducted by
a private engineering firm to determine if wood structural
panels fastened with staples would exhibit the same behavior
as the wood structural panels fastened with common nails.
The test result revealed that wood structural panel fastened
with staples appeared to be much lower in strength and
stiffness than wood structural panels fastened with common
nails. It was recommended that the use of staples as fasteners
for wood structural panel shear walls or diaphragms not be
permitted to resist seismic forces in structures assigned to
Seismic Design Category D, E and F unless it can be
substantiated by cyclic testing.
Furthermore, the cities and county within the Los Angeles
region has taken extra measures to maintain the structural
integrity of the framing of shear walls and diaphragms
designed for high levels of seismic forces by requiring wood
sheathing be applied directly over the framing members and
prohibiting the use of panels placed over gypsum sheathing.
This proposed amendment is intended to prevent the
undesirable performance of nails when gypsum board
softens due to cyclic earthquake displacements and the nail
ultimately does not have any engagement in a solid material
-21-
within the thickness of the gypsum board.
This proposed amendment continues the previous
amendment adopted during the 2010 code adoption cycle.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
2306.3
Geological
Rationale - The Structural Engineers Association of
Southern California (SEAOSC) and the Los Angeles City
Joint Task Force that investigated the damages to buildings
and structures during the 1994 Northridge Earthquake
recommended reducing allowable shear values in wood
structural panel shear walls or diaphragms that were not
substantiated by cyclic testing. That recommendation was
consistent with a report to the Governor from the Seismic
Safety Commission of the State of California recommending
that code requirements be "more thoroughly substantiated
with testing.' The allowable shear values for wood structural
panel shear walls or diaphragms fastened with stapled nails
are based on monotonic testing and does not take into
consideration that earthquake forces load shear wall or
diaphragm in a repeating and fully reversible manner.
In September 2007, limited cyclic testing was conducted by
a private engineering firth to determine if wood structural
panels fastened with stapled nails would exhibit the same
behavior as the wood structural panels fastened with
common nails. The test result revealed that wood structural
panel fastened with stapled nails appeared to be much lower
in strength and stiffness than wood structural panels fastened
with common nails. It was recommended that the use of
stapled nail as fasteners for wood structural panel shear walls
or diaphragms not be permitted to resist seismic forces in
structures assigned to Seismic Design Category D, E and F
unless it can be substantiated by cyclic testing.
Furthermore, the cities and county within the Los Angeles
region has taken extra measures to maintain the structural
integrity of the framing of shear walls and diaphragms
designed for high levels of seismic forces by requiring wood
sheathing be applied directly over the framing members and
prohibiting the use of panels placed over gypsum sheathing.
This proposed amendment is intended to prevent the
undesirable performance of nails when gypsum board
softens due to cyclic earthquake displacements and the nail
ultimately does not have any engagement in a solid material
-22-
within the thickness of the gypsum board.
This proposed amendment continues the previous
amendment adopted during previous code adoption cycles.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
2307.2
Geological
Rationale - The Structural Engineers Association of
Southern California (SEAOSC) and the Los Angeles City
Joint Task Force that investigated the damages to buildings
and structures during the 1994 Northridge Earthquake
recommended reducing allowable shear values in wood
structural panel shear walls or diaphragms that were not
substantiated by cyclic testing. That recommendation was
consistent with a report to the Governor from the Seismic
Safety Commission of the State of California recommending
that code requirements be "more thoroughly substantiated
with testing." The allowable shear values for wood structural
panel shear walls or diaphragms fastened with stapled nails
are based on monotonic testing and does not take into
consideration that earthquake forces load shear wall or
diaphragm in a repeating and fully reversible manner.
In September 2007, limited cyclic testing was conducted by
a private engineering firm to determine if wood structural
panels fastened with stapled nails would exhibit the same
behavior as the wood structural panels fastened with
common nails. The test result revealed that wood structural
panel fastened with stapled nails appeared to be much lower
in strength and stiffness than wood structural panels fastened
with common nails. It was recommended that the use of
stapled nail as fasteners for wood structural panel shear walls
or diaphragms not be permitted to resist seismic forces in
structures assigned to Seismic Design Category D, E and F
unless it can be substantiated by cyclic testing.
Furthermore, the cities and county within the Los Angeles
region bas taken extra measures to maintain the structural
integrity of the framing of shear walls and diaphragms
designed for high levels of seismic forces by requiring wood
sheathing be applied directly over the framing members and
prohibiting the use of panels placed over gypsum sheathing.
This proposed amendment is intended to prevent the
undesirable performance of nails when gypsum board
softens due to cyclic earthquake displacements and the nail
ultimate) does not have an e ement m a solid material
-23-
within the thickness of the gypsum board.
This proposed amendment continues the previous
amendment adopted during previous code adoption cycles.
Finding s - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
Table 2308.6.1
Geological
Rationale - This proposed amendment specifies minimum
sheathing thickness and nail size and spacing so as to
provide a uniform standard of construction for designers
and buildings to follow. This is intended to improve the
performance level of buildings and structures that are
subject to the higher seismic demands placed on buildings
or structure in this region. This proposed amendment
reflects the recommendations by the Structural Engineers
Association of Southern California (SEAOSC) and the Los
Angeles City Joint Task Force that investigated the poor
performance observed in 1994 Northridge Earthquake. This
proposed amendment is a continuation of an amendment
adopted during previous code adoption cycles.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
2308.6.5,
Geological
Rationale - 3/8" thick, 3 ply -plywood shear walls
2308.6.5.1 and
experienced many failures during the Northridge
Figure 2308.6.5.1
Earthquake. Box nails were observed to cause massive and
multiple failures of the typical 3/8" thick 3-ply plywood
during the Northridge Earthquake. This proposed
amendment specifies minimum sheathing thickness, nail size
and spacing so as to provide a uniform standard of
construction for designers and buildings to follow. This is
intended to improve the performance level of buildings and
structures that are subject to the higher seismic demands and
reduce and limit potential damages to property. This
proposed amendment reflects the recommendations by the
Structural Engineers Association of Southern California
(SEAOSC) and the Los Angeles City Joint Task Force that
investigated the poor performance observed in 1994
Northridge Earthquake.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
2308.6.5.2 and
Geological
Rationale - 3/8" thick, 3 ply -plywood shear walls
Fig=2308.6.5.2
experienced many failures ng the Northrid e
-24-
Earthquake. Box nails were observed to cause massive and
multiple failures of the typical 3/8" thick 3-ply plywood
during the Northridge Earthquake. This proposed
amendment specifies minimum sheathing thickness, nail size
and spacing so as to provide a uniform standard of
construction for designers and buildings to follow. This is
intended to improve the performance level of buildings and
structures that are subject to the higher seismic demands and
reduce and limit potential damages to property. This
proposed amendment reflects the recommendations by the
Structural Engineers Association of Southern California
(SEAOSC) and the Los Angeles City Joint Task Force that
investigated the poor performance observed in 1994
Northridge Earthquake.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
2309.6.8.1
Geological
Rationale — With the higher seismic demand placed on
buildings and structures in this region, interior walls can
easily be called upon to resist over half of the seismic loading
imposed on simple buildings or structures. Without a
continuous foundation to support the braced wall line,
seismic loads would be transferred through other elements
such as non-structural concrete slab floors, wood floors, etc.
The proposed change is to limit the use of the exception to
structures assigned to Seismic Design Category A, B or C
where lower seismic demands are expected. Requiring
interior braced walls be supported by continuous foundations
is intended to reduce or eliminate the poor performance of
buildings or structures. This proposed amendment is a
continuation of an amendment adopted during previous code
adoption cycles.
Finding s - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
2308.6.9
Geological
Rationale - This proposed amendment is intended to improve
the performance level of buildings and structures that are
subject to the higher seismic demands placed on buildings or
structure in this region. This proposed amendment reflects
the recommendations by the Structural Engineers
Association of Southern California (SEAOSC) and the Los
Angeles City Joint Task Force that investigated the poor
performance observed in 1994 Northridge Earthquake. This
proposed amendment is a continuation of an amendment
adopted during previous code adoption cycles.
-25-
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
3101.1
Climatic and
Rationale - There is an abundant supply of unused
Geological
intermodal shipping containers, particularly in jurisdictions
that have ports, that have created negative impacts on the
environment. This results in more materials that are not
recycled and increases energy consumption required to melt
down and recycle others that are. The repurposing of existing
intermodal shipping containers will help to reduce the
environmental impact and improve the sustainability of the
community by being less reliant on traditional construction
material.
This amendment is based on a similar code provision
adopted into the 2021 Edition of the International Building
Code. It is intended address the environmental impact of
unused materials, reduce consumption of traditional raw
materials, minimize non -industrial wastes, and ensure
minimum design and safety standards associated with the
repurposing of existing intermodal shipping containers as
buildings or structures or component of buildings and
structures are achieved.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another.
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city.
3114
Climatic and
Rationale - There is an abundant supply of unused
Geological
intermodal shipping containers, particularly in jurisdictions
that have ports, that have created negative impacts on the
environment. This results in more materials that are not
recycled and increases energy consumption required to melt
down and recycle others that are. The repurposing of existing
intermodal shipping containers will help to reduce the
environmental impact and improve the sustainability of the
community by being less reliant on traditional construction
material.
This amendment is based on a similar code provision
adopted into the 2021 Edition of the International Building
Code. It is intended address the environmental impact of
26-
unused materials, reduce consumption of traditional raw
materials, minimize non -industrial wastes, and ensure
minimum design and safety standards associated with the
repurposing of existing intermodal shipping containers as
buildings or structures or component of buildings and
structures are achieved.
Findines - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another.
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city.
Chapter 35
Climatic and
Rationale - There is an abundant supply of unused
Geological
intermodal shipping containers, particularly in jurisdictions
that have ports, that have created negative impacts on the
environment. This results in more materials that are not
recycled and increases energy consumption required to melt
down and recycle others that are. The repurposing of existing
intermodal shipping containers will help to reduce the
environmental impact and improve the sustainability of the
community by being less reliant on traditional construction
material.
This amendment is based on a similar code provision
adopted into the 2021 Edition of the International Building
Code. It is intended address the environmental impact of
unused materials, reduce consumption of traditional raw
materials, minimize non -industrial wastes, and ensure
minimum design and safety standards associated with the
repurposing of existing intermodal shipping containers as
buildings or structures or component of buildings and
structures are achieved.
Findines - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another.
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city.
J101
Administrative
Rationale - This proposed amendment sets forth
administrative provisions for the issuance of grading permits
and provides safeguards for neiSjjboring properties and the
-27-
public. It also establishes that all grading permits must also
comply with the provisions of Chapter 21 of the City code.
Chapter 21 set forth the NPDES provisions that must be met
in order to comply with the City's MS4 permit.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standard
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
Electrical Code
Section
Local Condition
Explanation and Findings
230.22
Climatic,
Rationale — The amendment increases the physical integrity
Geological,
of the service entry greatly reducing the potential of a fire
Topographical
hazard from exposed cable.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another;
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city, and;
The density of buildings, limited setbacks, narrow access to
buildings and narrow streets in the City of Vernon could
potentially affect governmental agencies response to
emergency conditions.
230.43
Climatic,
Rationale — The amendment increases the physical integrity
Geological,
of the service entry greatly reducing the potential of a fire
Topographical
hazard from exposed cable.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another;
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city, and;
The density of buildings, limited setbacks, narrow access to
buildings and narrow streets in the City of Vernon could
-28-
Electrical Code
Local Condition
Explanation and Findings
Section
potentially affect governmental agencies response to
emergency conditions.
334.10(3), (4) and
Climatic,
Rationale — Romex is a substandard wiring method in
(5)
Geological,
commercial/industrial setting. The unprotected cable can
Topographical
easily be damaged creating a fire hazard. Therefore, it should
only be permitted in dwelling occupancies.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another;
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city, and;
The density of buildings, limited setbacks, narrow access to
buildings and narrow streets in the City of Vernon could
potentially affect governmental agencies response to
emergency conditions.
2006ICC Electrical
Code
Local Condition
Explanation and Findings
Administrative
Provisions Section
303.1
Administrative
Rationale - Many buildings within the City are left in unsafe
condition when they are vacated by the prior tenant. In order
to ensure the safety of the next occupant the City must
inspect the building to determine if is safe to occupy in its
current condition or if illegal work has been performed that
must be properly permitted. In addition, due to the
uniqueness of businesses that operate in Vernon the City
must ensure that the structure complies with the
requirements of the code for the proposed occupancy. This
may include proper number of plumbing fixtures,
appropriate storage heights, proper fire systems and
appropriate facilities to store or utilize hazardous materials.
Because of these factors, the City requires each new
occupant to obtain a certificate of occupancy for its specific
use.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
ursuant to Sections 17958, 17958.5 and 17958.7 of the
29-
2006 ICC Electrical
Local Condition
Explanation and Findines
Code
Administrative
Provisions Section
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
402.6
Administrative
Rationale — This provision establishes the responsibilities of
the permittee ensuring that the work is carried out in
accordance with the approved plans, the code and any other
law or regulation.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
402.7
Administrative
Rationale — In order to ensure that the service connection has
sufficient power to supply to building and to avoid the
creation of hazardous condition, by overloading the service
entrance connection or transformer it is necessary for the
applicant to inform the utility of any load increase in load.
Fin ins - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
402.8
Administrative
Rationale — In order to ensure that the electrical equipment
is safe to operate it should be inspected to ensure
conformance with the code.
Findines - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
404.2
Administrative
Rationale — The City has established a fee schedule based on
the actual cost of service.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
-30-
2006 ICC Electrical
Local Condition
Explanation and Findings
Code
Administrative
Provisions Section
-
establishes administrative standards for the effective
enforcement of building standards.
1102
Administrative
Rationale — The City Council should establish the criteria for
members of the board of appeals and the terms of the
members. Therefore, this conflicting section of the code
should be removed.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
1201.3
Administrative
Rationale — The City believes that it is necessary that it
approve the testing agency to ensure that it is competent in
its workmanship and methodology.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
Mechanical Code
Local Condition
Explanation and Findings
Section
Table 104.5
Administrative
Rationale — The City has established a fee schedule based on
the actual cost of service.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
104.6
Administrative
Rationale — This provision establishes the responsibilities of
the perminee ensuring that the work is carried out in
accordance with the approved plans, the code and any other
law or regulation.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
-31-
Mechanical Code
Section
Local Condition
Explanation and Findings
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
Plumbing Code
Local Condition
Exvisnation and Findings
Section
Table 104.5
Administrative
Rationale — The City has established a fee schedule of its
own based on the actual cost of service.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
104.6
Administrative
Rationale — This provision establishes the responsibilities of
the permittee ensuring that the work is carried out in
accordance with the approved plans, the code and any other
law or regulation.
Findin s - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
1101.2
Administrative
Rationale — The City of Vernon is subject to a municipal
NPDES permit issued by the Los Angeles Regional Water
Quality Control Board. This MS4 permit requires certain to
establish certain requirements on stormwater runoff. The
City has adopted these requirements in Chapter 21 of the
City code. This amendment requires stormwater runoff from
the site to comply with the requirements of Chapter 21 of the
City Code.
Findin s - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
2018 International
Existing Building
Code
Local Condition
Explanation and Findings
-32-
202
Administrative
Rationale — This amendment makes it clew that the City
utilizes the Construction Codes as adopted by the State of
California as its Buildings Codes, not the International Code.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
Appendix A Chapter
Administrative
Rationale —This amendment utilizes Chapter Al as adopted
Al
by the State of California as the design criteria for
Umeinforced Masonry Buildings rather than the provision
contained in the International Existing Building Code.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
Residential Code
Local Condition
Explanation and Findings
Section
R105.8
Administrative
Rationale — This provision establishes the responsibilities of
the pemtittee ensuring that the work is carried out in
accordance with the approved plans, the code and any other
law or regulation.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
R108.7
Administrative
Rationale — This section permits the City to charge re -
inspection fees for specific instances where the permittee has
caused additional work for the City inspector and created the
need for an additional site inspection.
Findings - This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of building standards.
R301.1.3.2
Geological
Rationale — After the 1994 Northridge Earthuake,
the
33 -
Residential Code
Section
Local Condition
Exolanation and Findings
Wood Frame Construction Joint Task Force made
recommendations to improve the quality of wood frame
construction. One such recommendation identified by the
Task Force is to improve the quality and organization of
structural plans prepared by the engineer or architect so that
plan examiners, building inspectors, contractors and special
inspectors may logically follow and construct the
presentation of the seismic force -resisting systems in the
construction documents. For buildings or structures located
in Seismic Design Category Do, Di, or Dz that are subject to
a greater level of seismic forces, the requirement to have a
California licensed architect or engineer prepare the
construction documents is intended to minimize or reduce
structural deficiencies that may cause excessive damage or
injuries in wood frame buildings. Structural deficiencies
such as plan and vertical irregularities, improper shear
transfer of the seismic force -resisting system, missed details
or connections important to the structural system, and the
improper application of the prescriptive requirements of the
California Residential Code can be readily addressed by a
registered design professional.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
R301.1.4
Topographical,
Rationale - Due to the difficulty of fire suppression vehicles
Geological
accessing winding and narrow hillside properties and the
probabilities for future earthquakes in the Los Angeles
region, this technical amendment is required to address the
special needs for buildings constructed on hillside locations.
A joint Structural Engineers Association of Southern
California (SEAOSC) and both the Los Angeles County and
Los Angeles City Task Force investigated the performance
of hillside building failures after the Northridge earthquake.
Numerous hillside failures resulted in loss of life and
millions of dollars in damage. These criteria were developed
to minimize the damage to these structures and have been in
use by both the City and County of Los Angeles for several
years with much success. This proposed amendment is a
continuation of an amendment adopted during previous code
adoption cycles.
Findings - The density of buildings, limited setbacks, narrow
access to buildings and narrow streets in the City of Vernon
-34-
Residential Code
Local Condition
Explanation and Findings
Section
could potentially impact governmental agencies response to
emergency conditions.
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city.
Items 1, 3 and 5 of
Geological
Rationale - With the higher seismic demand placed on
Section R301.2.2.2.6
buildings and structures in this region, precautionary steps
are proposed to reduce or eliminate potential problems that
may result by limiting the type of irregular conditions
specified in the California Residential Code. Such
limitations are intended to reduce the potential structural
damage expected in the event of an earthquake. The cities
and county of the Los Angeles region have taken extra
measures to maintain the structural integrity of the framing
of the shear walls and all associated elements when designed
for high levels of seismic loads.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
R301.2.2.11
Geological
Rationale - There is no limitation for weight of mechanical
and plumbing fixtures and equipment in the International
Residential Code. Requirements from ASCE 7 and the
International Building Code would permit equipment
weighing up to 400 lbs. when mounted at 4 feet or less
above the floor or attic level without engineering design.
Where equipment exceeds this requirement, it is the intent
of this proposed amendment that a registered design
professional he required to analyze if the floor support is
adequate and structurally sound.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
R401.1
Climatic,
Rationale - No substantiating data has been provided to show
Geological
that wood foundation is effective in supporting buildings and
structures during a seismic event while being subject to
deterioration caused by the combined detrimental effect of
constant moisture in the soil and wood -destroying
organisms. Wood foundations, when they are not properly
treated and protected against deterioration, have performed
very poorly and have led to slope failures. Most contractors
are typically accustomed to construction in dry and
temperate weather in the Southern California region and are
-35-
Residential Code
Local Condition
Explanation and Findings
Section
not generally familiar with the necessary precautions and
treatment of wood that makes it suitable for both seismic
event and wet applications. The proposed amendment takes
the precautionary steps to reduce or eliminate potential
problems that may result in using wood foundation that
experience relatively rapid decay due to the fact that the
region does not experience temperatures cold enough to
destroy or retard the growth and proliferation of wood -
destroying organisms. However, an exception is made for
non -occupied, single -story storage structures that pose
significantly less risk to human safety and may utilize the
wood foundation guidelines specified in this Chapter. This
proposed amendment is a continuation of an amendment
adopted during previous code adoption cycles for the
California Residential Code.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase
the likelihood of fire spreading (conflagration) from one
building to another;
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city.
R403.1.2,
Geological
Rationale - With the higher seismic demand placed on
R403.1.3.6 and
buildings and structures in this region, precautionary steps
R403.1.5
are proposed to reduce or eliminate potential problems that
may result for under -reinforced footings located on sloped
surfaces. Requiring minimum reinforcement for stepped
footings is intended to address the problem of poor
performance of plain or under -reinforced footings during a
seismic event. Furthermore, interior walls can easily be
called upon to resist over half of the seismic loading imposed
on simple buildings or structures. Without a continuous
foundation to support the braced wall line, seismic loads
would be transferred through other elements such as non-
structural concrete slab floors, wood floors, etc. The
proposed change is to limit the use of the exception to
structures assigned to Seismic Design Category A, B or C
where lower seismic demands are expected. Requiring
interior braced walls be supported by continuous
foundations is intended to reduce or eliminate the poor
performance of buildings or structures. This proposed
amendment is consistent with an amendment adopted during
review code adoption cycles for the California Residential
-36-
Residential Code
Local Condition
Explanation and Findines
Section
Code.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
R404.2
Climatic and
Rationale - No substantiating data has been provided to show
Geological
that wood foundation wall is effective in supporting
buildings and structures during a seismic event while being
subject to deterioration caused by the combined detrimental
effect of constant moisture in the soil and wood -destroying
organisms. Wood foundation walls, when they are not
properly treated and protected against deterioration, have
performed very poorly and have led to slope failures. Most
contractors are typically accustomed to construction in dry
and temperate weather in the Southern California region and
are not generally familiar with the necessary precautions and
treatment of wood that makes it suitable for both seismic
event and wet applications. The proposed amendment takes
the precautionary steps to reduce or eliminate potential
problems that may result in using wood foundation walls that
experience relatively rapid decay as the region does not
experience temperatures cold enough to destroy or retard the
growth and proliferation of wood -destroying organisms.
This proposed amendment is consistent with an amendment
adopted during previous code adoption cycles for the
California Residential Code.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase
the likelihood of fire spreading (conflagration) from one
building to another.
The City of Vernon is affected by the nearby location of
earthquake faults that can create tremendous loss of life and
structures in the city.
R501.1
Geological
Rationale - There is no limitation for weight of mechanical
and plumbing fixtures and equipment in the California
Residential Code. Requirements from ASCE 7 and the
California Building Code would permit equipment weighing
up to 40016s. when mounted at 4 feet or less above the floor
or attic level without engineering design. Where equipment
exceeds this requirement, it is the intent of this proposed
amendment that a registered design professional is required
to analyze if the floor support is adequate and structurally
sound.
-37-
Residential Code
Local Condition
Exolanation and Findings
Section
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
R503.2.4
Geological
Rationale - Section R502.10 of the Code does not provide
any prescriptive criteria to limit the maximum floor
opening size nor does Section R503 provide any details to
address the issue of shear transfer near larger floor
openings. With the higher seismic demand placed on
buildings and structures in this region, it is important to
ensure that a complete load path is provided to reduce or
eliminate potential damages caused by seismic forces.
Requiring blocking with metal ties around larger floor
openings and limiting opening size is consistent with the
requirements of Section R301.2.2.6.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
Lines 19, 20, 23, and
Geological
Rationale - The Structural Engineers Association of
33 - 36 of Table
Southern California (SEAOSC) and the Los Angeles City
R602.3(1)
Joint Task Force that investigated the damages to buildings
and structures during the 1994 Northridge Earthquake
recommended reducing allowable shear values in wood
structural panel shear walls or diaphragms that were not
substantiated by cyclic testing. That recommendation was
consistent with a report to the Governor from the Seismic
Safety Commission of the State of California recommending
that code requirements be "more thoroughly substantiated
with testing." The allowable shear values for wood structural
panel shear walls or diaphragms fastened with staples are
based on monotonic testing and does not take into
consideration that earthquake forces load shear wall or
diaphragm in a repeating and fully reversible manner.
In September 2007, limited cyclic testing was conducted by
a private engineering firm to determine if wood structural
panels fastened with staples would exhibit the same behavior
as the wood structural panels fastened with common nails.
The test result revealed that wood structural panel fastened
with staples appeared to be much lower in strength and
stiffness than wood structural panels fastened with common
nails. It was recommended that the use of staples as fasteners
for wood structural panel shear walls or diaphragms —as well
as other sheathing materials - not be permitted to resist
-38-
Residential Code
Local Condition
Explanation and Findings
Section
seismic forces in structures assigned to Seismic Design
Category Do, Di, or Dz unless it can be substantiated by
cyclic testing.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
Exception of Section
Geological
Rationale - The cities and county of the Los Angeles region
R602.3.2 and Table
have taken extra measures to maintain the structural
R602.3.2
integrity of the framing of the shear wall system for
buildings and structures subject to high seismic loads by
eliminating single top plate construction. The performance
of modem day braced wall panel construction is directly
related to an adequate load path extending from the roof
diaphragm to the foundation system. A single top plate is
likely to be over nailed due to the nailing requirements at a
rafter, stud, top plate splice, and braced wall panel edge in
a single location. In addition, notching on a single top plate
for plumbing, ventilation and electrical wiring may reduce
the load transfer capacity of the plate without proper
detailing. A majority of buildings and structures designed
and built per the California Residential Code with a single
top plate may not need structural observation and special
inspections. The potential construction mistakes mentioned
above could not be caught and corrected by knowledgeable
engineers and inspectors, and could jeopardize structural
performance of buildings and structures located in high
seismic areas.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
Footnote "b" of
Geological
Rationale = The Structural Engineers Association of
Table R602.3(2)
Southern California (SEAOSC) and the Los Angeles City
Joint Task Force that investigated the damages to buildings
and structures during the 1994 Northridge Earthquake
recommended reducing allowable shear values in wood
structural panel shear walls or diaphragms that were not
substantiated by cyclic testing. That recommendation was
consistent with a report to the Governor from the Seismic
Safety Commission of the State of California recommending
that code requirements be "more thoroughly substantiated
with testing." The allowable shear values for wood structural
panel shear walls or diaphragms fastened with staples are
based on monotonic testing and does not take into
-39-
Residential Code
Local Condition
Explanation and Findings
Section
consideration that earthquake forces load shear wall or
diaphragm in a repeating and fully reversible manner.
In September 2007, limited cyclic testing was conducted by
a private engineering firm to determine if wood structural
panels fastened with staples would exhibit the same behavior
as the wood structural panels fastened with common nails.
The test result revealed that wood structural panel fastened
with staples appeared to be much lower in strength and
stiffness than wood structural panels fastened with common
nails. It was recommended that the use of staples as fasteners
for wood structural panel shear walls or diaphragms —as well
as other sheathing materials - not be permitted to resist
seismic forces in structures assigned to Seismic Design
Category Do, Di and D2 unless it can be substantiated by
cyclic testing.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
R602.10.2.3
Geological
Rationale - Plywood shear walls with high aspect ratio
experienced many failures during the Northridge
Earthquake. This proposed amendment specifies a minimum
braced wall length to meet an aspect ratio consistent with
other sections of the California Residential Code as to
provide a uniform standard of construction for designers and
buildings to follow. This is intended to improve the
performance level of buildings and structures that are subject
to the higher seismic demands and reduce and limit potential
damages to property. This proposed amendment reflects the
recommendations by the Structural Engineers Association of
Southern California (SEAOSC) and the Los Angeles City
Joint Task Force that investigated the poor performance
observed in 1994 Northridge Earthquake. This proposed
amendment is consistent with an amendment adopted during
previous code adoption cycles for the California Residential
Code.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
Table R602.10.3(3)
Geological
Rationale - Due to the high geologic activities in the
Southern California area and the expected higher level of
performance on buildings and structures, this proposed local
amendment increase the len h and limits the location where
40 -
Residential Code
Section
Local Condition
Explanation and Findings
shear walls sheathed with lath, plaster or gypsum board are
used in multi -level buildings. In addition, shear walls
sheathed with other materials are prohibited in Seismic
Design Category Do, Dt and D2 to be consistent with the
design limitation for similar shear walls found in the
California Building Code. The poor performance of such
shear walls in the 1994 Northridge Earthquake was
investigated by the Stmctural Engineers Association of
Southern California (SEAOSC) and the Los Angeles City
Task Force and formed the basis for this proposed
amendment. Considering that shear walls sheathed with lath,
plaster or gypsum board are less ductile than steel moment
frames or wood structural panel shear walls, the cities and
county of the Los Angeles region have taken the necessary
measures to limit the potential structural damage that may be
caused by the use of such walls at the lower level of multi-
level building that are subject to higher levels of seismic
loads.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
Table R602.10.4
Geological
Rationale — 3/8" thick 3 ply -plywood shear walls
experienced many failures during the Northridge
Earthquake. Box nails were observed to cause massive and
multiple failures of the typical 3/8" thick 3-ply plywood
during the Northridge Earthquake. This proposed
amendment specifies minimum sheathing thickness, nail
size and spacing so as to provide a uniform standard of
construction for designers and buildings to follow. This is
intended to improve the performance level of buildings and
structures that are subject to higher seismic demand and
reduce and limit potential damage to property. This proposed
amendment reflects the recommendations by the Structural
Engineers Association of Southern California (SEAOSC)
and the Los Angeles City Joint Task Force that investigated
the poor performance observed in 1994 Northridge
Earthquake.
In September 2007, limited cyclic testing was conducted by
a private engineering firm to determine if wood structural
panels fastened with staples would exhibit the same behavior
as the wood structural panels fastened with common nails.
The test result revealed that wood structural panel fastened
with staples appeared to be much lower in strength and
-41-
Residential Code
Local Condition
Explanation and Findings
Section
stiffness than wood structural panels fastened with common
nails. It was recommended that the use of staples as fasteners
for wood structural panel shear walls or diaphragms not be
permitted to resist seismic forces in structures assigned to
Seismic Design Category Do, Di and D2 unless it can be
substantiated by cyclic testing.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
Table R602.10.5
Geological
Rationale - It was observed by the Structural Engineer
Association of Southern California (SEAOSC) and the Los
Angeles City Task Force that high aspect ratio shear walls
experienced many failures during the 1994 Northridge
Earthquake. This proposed amendment provides a uniform
standard of construction for designers and buildings to
follow. This is intended to improve the performance level of
buildings and structures that are subject to higher seismic
demand and reduce and limit potential damage to property.
This proposed amendment is consistent with an amendment
adopted during the previous code adoption cycle for the
California Residential Code.
Findings - The City of Vemon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
Figure R602.10.6.1
Geological
Rationale - 3/8" thick 3 ply -plywood shear walls
experienced many failures during the Northridge
Earthquake. Box nails were observed to cause massive and
multiple failures of the typical 3/8" thick 3-ply plywood
during the Northridge Earthquake. This proposed
amendment specifies minimum sheathing thickness, nail
size and spacing so as to provide a uniform standard of
construction for designers and buildings to follow. This is
intended to improve the performance level of buildings and
structures that are subject to higher seismic demand and
reduce and limit potential damage to property. This proposed
amendment reflects the recommendations by the Structural
Engineers Association of Southern California (SEAOSC)
and the Los Angeles City Joint Task Force that investigated
the poor performance observed in 1994 Northridge
Earthquake.
-42-
Residential Code
Local Condition
Explanation and Findings
Section
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
Figure R602.10.6.2
Geological
Rationale - 3/8" thick 3 ply -plywood shear walls
experienced many failures during the Northridge
Earthquake. Box nails were observed to cause massive and
multiple failures of the typical 3/8" thick 3-ply plywood
during the Northridge Earthquake. This proposed
amendment specifies minimum sheathing thickness, nail
size and spacing so as to provide a uniform standard of
construction for designers and buildings to follow. This is
intended to improve the performance level of buildings and
structures that are subject to higher seismic demand and
reduce and limit potential damage to property. This proposed
amendment reflects the recommendations by the Structural
Engineers Association of Southern California (SEAOSC)
and the Los Angeles City Joint Task Force that investigated
the poor performance observed in 1994 Northridge
Earthquake. This proposed amendment is a continuation of
an amendment adopted during the previous code adoption
cycle.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
Figure R602.10.6.4
Geological
Rationale - 3/8" thick 3 ply-pivwood shear walls
experienced many failures during the Northridge
Earthquake. Box nails were observed to cause massive and
multiple failures of the typical 3/8" thick 3-ply plywood
during the Northridge Earthquake. This proposed
amendment specifies minimum sheathing thickness, nail
size and spacing to provide a uniform standard of
construction for designers and buildings to follow. This is
intended to improve the performance level of buildings and
structures that are subject to higher seismic demand and
reduce and limit potential damage to property. This proposed
amendment reflects the recommendations by the Structural
Engineers Association of Southern California (SEAOSC)
and the Los Angeles City Joint Task Force that investigated
the poor performance observed in 1994 Northridge
Earthquake.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
-43-
Residential Code
Local Condition
Explanation and Findinas
Section
R606.4.4
Geological
Rationale - The addition of the word "of' will prevent the
use of unreinforced parapets in Seismic Design Category Do,
Di or Dz, or on townhouses in Seismic Design Category C.
Finding x - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
R602.12.2.2.3
Geological
Rationale - Reinforcement using longitudinal wires for
buildings and structures located in high seismic areas are
deficient and not as ductile as deformed rebar. Having
vertical reinforcement closer to the ends of masonry walls
help to improve the seismic performance of masonry
buildings and structures.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
R803.2.4
Geological
Rationale - Section R802 of the Code does not provide any
prescriptive criteria to limit the maximum roof opening size
nor does Section R803 provide any details to address the
issue of shear transfer near larger roof openings. With the
higher seismic demand placed on buildings and structures
in this region, it is important to ensure that a complete load
path is provided to reduce or eliminate potential damage
caused by seismic forces. Requiring blocking with metal
ties around larger roof openings and limiting opening size
is consistent with the requirements of Section R301.2.2.2.5.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
R905.3.1
Geological
Rationale - Section R905.3.1 is amended to require concrete
and clay tiles to be installed only over solid sheathing. The
change is necessary because there were numerous
observations of the roofs pulling away from wood framed
buildings following the 1994 Northridge Earthquake. The
SEAOSC/LA City Post Northridge Earthquake committee
findings indicated significant problems with tile roofs were
due to inadequate design and/or construction. Therefore, the
amendment is needed to minimize such occurrences in the
event of future significant earthquakes.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
44-
Residential Code
Section
Local Condition
Explanation and Findings
R1001.3.1
Geological
Rationale - The performance of fireplacelchimney without
anchorage to the foundation has been observed to be
inadequate during major earthquakes. The lack of anchorage
to the foundation can result in the overturning or
displacement of the fireplacetchimney.
Findings - The City of Vernon is affected by the nearby
location of earthquake faults that can create tremendous loss
of life and structures in the city.
Green Building
Local Condition
Explanation and Findings
Standards Code
Section
101.12
Administrative
Rationale — The City has established a fee schedule of its
own based on the actual cost of service. This section also
permits the City to charge a re -inspection fees for specific
instances where the pemtittee has caused additional work for
the City inspector and created the need for an additional site
inspection.
Findin s - This amendment is necessary for administrative
clarification. It does not modify a Building Standards
pursuant to Sections 17958 and 18941.5 of the California
Health and Safety Code and does not require an express
finding to be made pursuant to Sections 17958.5 and
17958.7 of the California Health and Safety Code. This
amendment establishes administrative standards for the
effective enforcement of green building standards and
therefore need to be incorporated into the code to assure that
new buildings and structures and additions or alterations to
existing buildings or structures are designed and constructed
in accordance with the scope and objectives of the California
Omen Building Standards Code.
4.106.4.2
Climatic
Rationale - This proposed amendment requires a certain
percentage of parking stalls to be provided with EV charging
spaces capable of supporting future EVSE and EV charging
stations. Increasing the number of EV charging spaces or
stations will allow both the community and residents to
benefit from reduced local air and noise pollution, combat
climate change, and improve their health and lifestyle.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
buildin to another.
-45-
Green Building
Local Condition
Explanation and Findings
Standards Code
Section
4.106.4.3,
Climatic
Rationale - This proposed amendment requires a certain
4.106.4.3.1 and
percentage of parking stalls to be provided with EV charging
Table 4.106.4.3.1
spaces capable of supporting future EVSE and EV charging
stations. Increasing the number of EV charging spaces or
stations will allow both the community and residents to
benefit from reduced local air and noise pollution, combat
climate change, and improve their health and lifestyle.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another.
5.106.5.3.3 and
Climatic
Rationale - This proposed amendment requires a certain
Table 5.106.5.3.3
percentage of parking stalls to be provided with EV charging
spaces capable of supporting future EVSE and EV charging
stations. Increasing the number of EV charging spaces or
stations will allow both the community and residents to
benefit from reduced local air and noise pollution, combat
climate change, and improve their health and lifestyle.
Findings - Adverse climatic conditions and strong winds
such as those in existence in the City of Vernon increase the
likelihood of fire spreading (conflagration) from one
building to another.
Enerev Code
Section
Local Condition
Explanation and Findings
100
Administrative
Rationale — The City has established a fee schedule of its
own based on the actual cost of service. This section also
permits the City to charge a re -inspection fees for specific
instances where the permittee has caused additional work for
the City inspector and created the need for an additional site
inspection.
Findings — This amendment is necessary for administrative
clarification and does not modify a Building Standards
pursuant to Sections 17958, 17958.5 and 17958.7 of the
California Health and Safety Code. This amendment
establishes administrative standards for the effective
enforcement of buildings standards.
46-
TRANSMITTAL COMMUNICATION
of der
fit nog;
PUBLIC WORKS DEPARTMENT
4305 Santa Fe Avenue, Vernon, Califomia 90058
Telephone (323) 583-8811
November 26, 2019
C-14
Via LISPS Certified k Mum Receipt Mail
California Building Standards Commission
2525 Nammos Park Drive, Suite 130
Sacramento, California 95833
Attn: Ordinance Filing
Dear Sir or Madam:
The City Council of the City of Vernon ("City'j recently adopted by reference the 2019 California Building
Code; the 2019 California Electrical Code; the 2006 Edition of the ICC Electrical Code Administrative
Provisions; the 2019 California Mechanical Code; the 2019 California Plumbing Code; the 2019 California
Existing Building Code; the 2018 International Existing Building Code; the 2019 California Residential
Code; the 2019 California Green Building Standards Code; and the 2019 California Energy Code with
various amendments under Ordinance No. 1261. 'the City is making express findings and determinations
that modifications to the aforementioned codes are reasonably necessary because of local climatic,
geological or topographical conditions under Resolution No. 2019-50.
The City also recently adopted by reterenoa the 2019 California Fire Code with various amendments under
Ordinance No. 1262. Furthermore, the City is making express findings and determinations that
modifications to the 2019 California Fire Code are reasonably necessary because of local climatic,
geological or topographical conditions under Resolution No. 2019-49.
Copies of Ordinance Nos. 1261 and 1262 and Resolution Nos. 201949 and 2019-50 ere enclosed herewith.
This letter shall serve as the City of Vernon's filing of its modifications to the above mentioned codes along
with the City's findings determining why each amendment or modification is necessary.
If you have any questions you may contact me at (323) 583-8811 extension 305 or dwalllalci.verrmn.ca-us.
Thank you.
Sincerely,
0. Ao�tj c
Daniel Wall
Director of Public Works
Ica
Enclosures
c Debbie lame; City Clerk's OtBce
Jim Enrique; Interim Fire Chief
Ex.cfus /et5 IftrfilStrfal
STAFF REPORT
AGENDA ITEM APPROVED
- 11105119, SD
City CounC17 Agenda Item Report
Agenda Item No. CO V-438-2019
Submitted by. Claudia Arellano
Submitting Department: Public Works
Meeting Date: November 5, 2019
SUBJECT
Findings Supporting Amendments to the 2019 California Buildings Standards Codes, 2006 International Code Council
Administrative Provisions, and 2018 International Existing Building Code
Recommendation:
A. Find that the proposed resolution its not subject to the California Environmental Quality Act (CEQA) as the
resolution is not considered a "project" under CEQA which 6 defied as an action directly undertaken by a public
agency which has the potential for resulting in either a direct physical change in the environment or a reasonably
foreseeable idiect physical change in the environment. CEQA Guidelines section 15378(a); Cal. Pub. Res. Code
section 21065. Under the proposed resolution, no such activity is being undertaken. Even ifthe resolution were to be
considered a `project" under CEQA, which is not the case, the resoktion would be covered by the general nde set
forth in CEQA Guidelines Section 15061(b)(3) which provides that CEQA applies only to projects which have the
potential for causing a significant effect on the environment. Where it can be seen with certainty that there is no
possibility that the activity in question may have a significant effect on the environment, the activity is act subject to
CEQA. Here, the resolution involves making express findings and determinations that modifications to each Code are
reasonably necessary due to local climatic, geological, or topographical conditions and will not have arry effect on the
environment; and
B. Adopt the proposed resolution making express findings and determinations that modifications to each Code are
reasonably necessary due to local climatic, geological, or topographical conditions.
Background:
The Public Works Department is proposing to adopt the 2019 California Building Electrical, Mechanical, Plianbing,
Existing Building, Residential, Green Buildings Standards and Energy Codes; the 2006 Edition ofthe International Code
Council Electrical Code Administrative Provisions; and the 2018 International Existing Buildig Code (hereinafter
referred to as the "Codes'). The Public Works Department recommends that these Codes be muddied by adding,
deleting or amending certain provisions.
California Health and Safety Code Sections 17958.5 and 17958.7 requires that local code amendments to the Codes
and other regulations only be enacted when an express finding is made that such modifications or changes are
reasonably necessary due to local climatic, geological or topographical conditions.
The Public Works Department has determined that due to the local conditions listed below modifications to the Codes
are necessary:
A) Climatic Conditions. Adverse climatic conditions and strong wills such as those in existence in the City of Vernon
increase the likelihood offie spreading (conflagration) from one building to another.
AGENDA ITEM APPROVED
- 11105119, so
B) Geological Conditions. Geological conditions in the C'ty of Vernon are affected by the nearby location of
earthquake faults that can create tremendous loss of life and structures in the City.
C) Topographical Conditions. Topographical conditions ofthe City of Vernon including the density ofbwldngs,limited
setbacks, narrow access to buildings and narrow streets potentially create a problem for governmental agencies to
respond to emergency conditions.
In addition, Public Works Department staff have determined that modifications are necessary to administrative portions
of the Codes for clarification. These modifications are not subject to Health and Safety Code Section 17958.5 since
they do not modify a building standard.
The C'ty Attorney's Office has reviewed and approved as to form, the attached resolution. It is recommended that the
attached resolution be adopted setting forth the findings for each Code section modification. The resolution shall be
forwarded to the California Building Standards Commission after adoption.
Fiscal Impact:
There is no fiscal impact with the City Corrrcl making express findings and determinations that modifications to each
Code are reasonably necessary due to local climatic, geological, or topographical conditions.
ATTACHMENTS
1. Resolution - Finings for Building Code Amendments