Article 1 — GENERAL PROVISIONS — 2025 California Administrative Code (Title 24, Part 1)

4-301 Purpose. ¶

School buildings constructed pursuant to these regulations are expected to resist earthquake forces generated by major earthquakes of the intensi

4-301. Purpose. School buildings constructed pursuant to these regulations are expected to resist earthquake forces generated by major earthquakes of the intensity and severity of the strongest experienced in California without catastrophic collapse, but may experience some reparable architectural or structural damage.

Authority: Education Code Sections 17310 and 81142. Reference: Education Code Sections 17280 and 81130.

HISTORY:

Repealer of Group 1, Articles 1-6 (§§ 1-80) and new Group 1, Articles 1-5 (§§ 1-6, 8, 10, 10.5, 11-14, 16-26, 26.1, 26.2, 26.5-26.9, 27-40, 50, 51, 60, 61, 62, 80 and Appendix), filed 11-1-66; effective thirtieth day thereafter (Register 66, No. 38). For history of former sections see Registers 53, Nos. 15, 18; 54, No. 24; 55, No. 12; 56, No. 10; 59, No. 14; 60, Nos. 8, 16; 61, No. 19; 64, No. 13.
Amendment filed 6-29-76 as an emergency; designated effective 7-1-76 (Register 76, No. 27).
Certificate of Compliance filed 10-15-76 (Register 76, No. 42).
Amendment of NOTE filed 6-19-79; effective thirtieth day thereafter (Register 79, No. 25).
Repealer filed 9-24-82 by OAL pursuant to Government Code Section 11349.7 (j); effective thirtieth day thereafter (Register 82, No. 39).
*Repealer of Group 1 (Articles 1-5, Sections 2-80, not consecutive) and new Group 1 (Articles 1-9, Sections 1-55, not consecutive and Appendix) filed 9-8-83; effective 9-15-83 pursuant to Government Code Section 11346.2 (d) (Register 83, No. 40). For prior history, see Registers 79, No. 25; 77, No. 40; 76, No. 42; 76, No. 27; and 74, No. 38.
(OSA/SS 1/92) Regular order by the Office of the State Architect/Structural Safety Section to amend Section 4-301, Part 1, Title 24, C.C.R. Filed with the Secretary of State on December 15, 1992; effective July 1, 1993. Approved by the California Building Standards Commission on December 9, 1992.

4-302 Scope. ¶

4-302. Scope.

(a) General. Part 2, Title 24, California Code of Regulations (C.C.R.), also known as the California Building Code, and Part 10, C.C.R., also known as the California Existing Building Code, designate the structural building regulations that shall apply to the design, construction, reconstruction, rehabilitation, alteration of or addition to any school building as defined in Sections 17283 and 81130.5 of the Education Code. The term “school building” shall include all buildings, structures, appurtenances and related systems or facilities as defined in Section 4-314.

These regulations establish reasonable standards and minimum requirements for the structural integrity of public school buildings to resist, insofar as practicable, the forces of gravity, wind and earthquake for the protection of life and property.

The design and construction of the mechanical and electrical systems in school buildings shall conform to the applicable building regulations in Title 24, C.C.R.

Further, the design and construction of school buildings shall comply with the regulations adopted by the Division of the State Architect/Access Compliance (DSA-AC) and the Office of the California State Fire Marshal for the particular occupancies concerned. (See Title 24, C.C.R.)

Authority: Education Code Sections 17310 and 81142.

Reference: Education Code Sections 17280 and 81130.

(b) Emergency buildings. Installation of relocatable school buildings, used or designed to be used for school purposes following disasters such as earthquakes, fires, floods or unanticipated emergency classroom needs require approval by DSA. DSA has determined that compliance with the strict letter of the regulations may be impractical in these circumstances. The modifications to the regulations granted by DSA are as indicated here and are recorded and entered in the files of DSA in accordance with Section 4-304.

Emergency relocatable buildings must meet all the requirements of regulations with the following modifications and limitations:

The building is a one-story relocatable building no greater than 2,160 square feet in area.
Documentation is provided indicating the construction of the building superstructure is DSA certified in accordance with Section 4-339.
A foundation system is provided that has been accepted by DSA.
Observation and inspection of construction shall be in compliance with Section 4-333.
Verified reports shall be prepared and provided in compliance with Section 4-336.
DSA must be notified immediately by the district of the emergency need and the intent to use this section.
Within 14 days following the installation of these emergency buildings, the school district will notify DSA of the extent of the damage to their permanent school buildings or extent of emergency need and the number of emergency buildings installed to house displaced students.
Within 60 days following installation of these emergency buildings, the design professional representing the school district shall provide DSA with a complete project submittal in compliance with Article 3 of these regulations.

Authority: Education Code Sections 17310 and 81142.

Reference: Education Code Sections 17282 and 17298.

The reorganization of Group 1 is printed as a repealer and adoption for clarity.

HISTORY:

Editorial correction of printing error (Register 83, No. 45).
(OSA/SS 1/92) Regular order by the Office of the State Architect/Structural Safety Section to amend Section 4-302, Part 1, Title 24, C.C.R. Filed with the Secretary of State on December 15, 1992; effective July 1, 1993. Approved by the California Building Standards Commission on December 9, 1992.
(DSA/SS 2/95) Regular order by the Division of the State Architect/ Structural Safety Section to amend Section 4-302(b). Filed with the Secretary of State on August 14, 1996, becomes effective September 13, 1996. Approved by the California Building Standards Commission on March 19, 1996.

4-303 Delegation of authority. ¶

All powers, duties, responsibilities pursuant to carrying out the provisions of the Field Act vested by law in the Department of

4-303. Delegation of authority. All powers, duties, responsibilities pursuant to carrying out the provisions of the Field Act vested by law in the Department of General Services have been delegated by the Department to the State Architect.

Authority: Education Code Sections 17310 and 81142.

Reference: Government Code Section 14607.

4-304 Alternate materials and methods of construction and modifications. ¶

The provisions of these regulations are not intended to prevent the use of any material

4-304. Alternate materials and methods of construction and modifications. The provisions of these regulations are not intended to prevent the use of any material or method of construction not specifically prescribed by these regulations, provided any alternate has been approved and its use authorized by DSA.

DSA may approve any such alternate, provided DSA finds that the proposed design is satisfactory and complies with the provisions of these regulations and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in these regulations in suitability, strength, effectiveness, fire resistance, durability, safety and sanitation.

DSA shall require that sufficient evidence or proof be submitted to substantiate any claims that may be made regarding its use. The details of any action granting acceptance of an alternate shall be recorded and entered in the files of DSA.

When there are practical difficulties involved in carrying out the provisions of these regulations, DSA may grant modifications for individual cases. DSA shall first find that a special individual reason makes the strict letter of these regulations impractical and that the modification is in conformance with the intent and purpose of these regulations and that such modification does not lessen any fire protection requirements or any degree of structural integrity. The details of any action granting modifications shall be recorded and entered in the files of DSA.

Authority: Education Code Sections 17310 and 81142.

Reference: Education Code Sections 17280 and 81130.

HISTORY:

(OSA/SS 1/92) Regular order by the Office of the State Architect/Structural Safety Section to amend Section 4-304, Part 1, Title 24, C.C.R. Filed with the Secretary of State on December 15, 1992; effective July 1, 1993. Approved by the California Building Standards Commission on December 9, 1992.

4-305. Application of building standards. Building standards applicable to public school buildings are set forth in Parts 2, 3, 4, 5, 6, 7, 9, 10, 11 and 12, Title 24, C.C.R., and have been adopted as minimum design and construction standards upon which to base the approval of plans and specifications. These regulations shall not be construed to prevent the use of higher design standards nor to restrict the use of new or innovative design or construction techniques.

Where the designer desires to use innovative design or construction techniques not addressed in these regulations it shall be necessary to submit for review and approval information including computations, test data and recommendations covering the design in question. The designer shall confer with DSA concerning the applicability of these innovative design or construction techniques to school building construction prior to the submittal of plans and specifications.

hniques not addressed in these regulations it shall be necessary to submit for review and approval information including computations, test data and recommendations covering the design in question. The designer shall confer with DSA concerning the applicability of these innovative design or construction techniques to school building construction prior to the submittal of plans and specifications.

DSA must be satisfied that the degree of safety achieved by these innovative design and construction techniques is at least equivalent to that achieved by the regulations. This requirement shall apply to all buildings proposed for public school use for educational purposes as defined in these regulations. The proposed use of archaic building materials and structural systems such as those desired to be retained in buildings that have been designated as historically important shall be included in this provision. The determination of the equivalency of the degree of safety shall be the responsibility of DSA.

Authority: Education Code Sections 17310 and 81142.

Reference: Education Code Sections 17280 and 81130.

HISTORY:

(OSA/SS 1/92) Regular order by the Office of the State Architect/Structural Safety Section to amend Section 4-305, Part 1, Title 24, C.C.R. Filed with the Secretary of State on December 15, 1992; effective July 1, 1993. Approved by the California Building Standards Commission on December 9, 1992.

4-306 Approval of new school buildings, rehabilitation of school buildings and additions to school buildings. ¶

Plans and specifications for any new school buildi

4-306. Approval of new school buildings, rehabilitation of school buildings and additions to school buildings. Plans and specifications for any new school building or the rehabilitation of or addition to any school building, regardless of cost, shall be submitted to DSA for approval in accordance with Section 4-315.

All new construction work that is part of an addition project shall comply with currently effective regulations. Existing school buildings for which an addition project is proposed shall be retrofitted when required by Section 4-309(c).

Before the school board may award a contract or commence construction work for the rehabilitation of a structure already owned (including those pre-1933 buildings not retrofitted or subsequently abandoned for school use under the provisions of the Garrison Act), or an existing building that has been purchased or leased, into a school building, the school board shall submit application and plans of the building to DSA for approval. The plans shall provide for the retrofit necessary for full compliance with the requirements of currently effective regulations. Refer to Section 4-307 for rehabilitation of an existing nonconforming building for use as a school building.

When a structural rehabilitation of an existing school building is required by Section 4-309(c) and DSA, the school board shall submit to DSA, prior to submittal of project application, a pre-application for the rehabilitation project, fees in accordance with Section 4-326, and an Evaluation and Design Criteria Report for approval. If the school board voluntarily elects to rehabilitate an existing school building to full compliance with the code, then a pre-application may be required by DSA. The report shall propose the methodologies for evaluation and design, and determination of acceptance criteria for nonconforming construction, and shall propose the material testing and condition assessment requirements for the rehabilitation. The approved Evaluation and Design Criteria Report shall establish the criteria for the evaluation and design to be used by the project design professionals and the material testing and condition assessment requirements. The seismic evaluation and retrofit design shall comply with the provisions of Sections 317 through 323, Part 10, Title 24, C.C.R.

The relocation or moving of an existing school building within the same school district or from one school district to another regardless of cost requires approval by DSA. (See Section 4-314 for definition of “relocation.”)

The provisions of this section shall not apply to a “temporary-use building community college.” (See Section 4-314 for definitions of “new school building” and “temporary-use building community college.”)

Authority: Education Code Sections 17310 and 81142.

Reference: Education Code Sections 17280 and 81130.

HISTORY:

(OSA/SS 1/92) Regular order by the Office of the State Architect/Structural Safety Section to amend Section 4-306, Part 1, Title 24, C.C.R. Filed with the Secretary of State on December 15, 1992; effective July 1, 1993. Approved by the California Building Standards Commission on December 9, 1992.

4-307 Rehabilitation of an existing nonconforming building for use as a school building. ¶

4-307. Rehabilitation of an existing nonconforming building for use as a school building.

(a) An existing nonconforming building rehabilitated for use as a school building is considered, for the purpose of the application of Title 24, to be a new school building. Plans and specifications for rehabilitation of any existing nonconforming building, or portion thereof, for use as a school building shall provide for the retrofit necessary for compliance with the health and safety standards contained in Title 24, C. C. R., currently effective edition. Existing materials or systems not specifically prescribed in current safety standards are permitted to be evaluated for equivalency and approved in accordance with Section 4-304. The seismic evaluation and retrofit design shall comply with the provisions of Sections 317 through 323, Part 10, Title 24, C. C. R.

(b) A site that is currently not an existing school site, on which one or more existing nonconforming buildings are rehabilitated for use as school building(s), is considered to be a new school site for the purpose of the application of Title 24. Any building on a new school site that is not rehabilitated and approved as a school building shall not be used for school purposes and shall be subject to the provisions of Section 4-310.

(c) Prior to submittal of a project application for the rehabilitation of an existing nonconforming building, the school board shall submit to DSA a pre-application for the rehabilitation project, fees in accordance with Section 4-326, and an Evaluation and Design Criteria Report for approval. The report shall propose the methodologies for evaluation and design, and determination of acceptance criteria for nonconforming construction; and shall propose the material testing and condition assessment requirements for the rehabilitation. The approved Evaluation and Design Criteria Report establishes the criteria for the evaluation and design to be used by the project design professionals, and the material testing and condition assessment requirements.

Authority: Education Code Sections 17310 and 81142.

Reference: Education Code Sections 17280 and 81130.

4-308 Reconstruction or alteration projects not in excess of $100,000 in cost. ¶

Projects involving only reconstruction or alterations whose estimated costs do no

4-308. Reconstruction or alteration projects not in excess of $100,000 in cost. Projects involving only reconstruction or alterations whose estimated costs do not exceed $100,000 do not require approval by DSA, but such approval can be obtained at the request of the school board and by compliance with these regulations. The cost of work classified as maintenance as defined in Section 4-314 shall not be considered for purposes of this section. The regulations of the Division of the State Architect/Access Compliance and of the California State Fire Marshal may apply to any project, including maintenance, regardless of cost. See Section 4-302.

In authorizing and completing the design and construction of projects with an estimated cost below $100,000 as described in this section, the school board assumes responsibility for employing an architect or a registered engineer to prepare the plans and specifications and for adequate inspection of the materials and work of construction to ensure compliance with the currently effective provisions of Title 24, C.C.R.

The dollar amount cited in this section shall be increased on an annual basis, according to an inflationary index governing construction costs that is selected and recognized by the Division of the State Architect. This annually adjusted dollar amount shall be published by DSA and made available to school boards and the public.

School construction projects shall not be subdivided for the purpose of evading the cost limitations of this section.

Authority: Education Code Sections 17310 and 81142.

Reference: Education Code Sections 17280, 17295, 81130 and 81133.

HISTORY:

(OSA/SS 1/92) Regular order by the Office of the State Architect/Structural Safety Section to amend Section 4-308, Part 1, Title 24, C.C.R. Filed with the Secretary of State on December 15, 1992; effective July 1, 1993. Approved by the California Building Standards Commission on December 9, 1992.
(DSA/SS 9/96) 1996 Annual Code Adoption Cycle will amend Section 4-308, of Part 1, Title 24, C.C.R. Filed with the Secretary of State on March 4, 1997; effective April 3, 1997. Approved by the California Building Standards Commission on February 6, 1997.

4-309 Reconstruction or alteration projects in excess of $100,000 in cost. ¶

4-309. Reconstruction or alteration projects in excess of $100,000 in cost.

(a) General. Plans and specifications for any reconstruction or alteration project exceeding $100,000 in cost shall be submitted to DSA for approval in accordance with Section 4-315, except as provided within this section. The cost of work classified as maintenance as defined in Section 4-314 shall not be considered for purposes of this section.

The dollar amounts cited in this section shall be increased on an annual basis, according to an inflationary index governing construction costs that is selected and recognized by DSA. This annually adjusted dollar amount shall be published by DSA and made available to school boards and the public.

School construction projects shall not be subdivided for the purpose of evading the cost limitations of this section.

All new construction work that is part of a reconstruction or alteration project shall comply with currently effective regulations for design and construction, where not otherwise regulated in this section.

Exception: Fire damage repair may be accomplished utilizing the approved plans and specifications for the original construction work. All regulations and standards in effect at the time of approval shall be complied with except that the testing and inspection requirements of current regulations shall apply to the reconstruction work. Minor modifications to the original approved plans may be made, subject to the approval of DSA, provided that they do not reduce the structural capacity of the building.

All reconstruction, alteration or addition affecting the existing structural elements carrying gravity load shall comply with Section
503.3, Part 10, Title 24, C.C.R.

Where any reconstruction, alteration or addition to an existing school building results in an increase to the seismic or wind forces in any lateral force-resisting structural component by more than 10 percent, or decrease the capacity or stiffness of any lateral force resisting structural component by more than 5 percent, cumulative since the original construction, then those affected components shall be made to comply with Section 319.1 or 317.7, Part 10, Title 24, C.C.R and Section 1609A, Part 2, Title 24, C.C.R. Only the affected components need be strengthened unless a rehabilitation is required for the entire building per Section 4-309(c). The capacity or stiffness of the lateral force-resisting structural component may include past strengthening that was approved and certified by DSA as the basis for the percentage comparison.

Voluntary lateral force-resisting system modifications may be used where permitted in Section 4-309(d).

When the estimated cost of a reconstruction or alteration project exceeds $100,000 but does not exceed $225,000, and a licensed structural engineer determines that the project does not include any work of a structural nature, approval of the project plans and specifications by DSA is not required, provided the following three items are completed:

The structural engineer shall submit a written statement to DSA, indicating that the project does not contain any work of a structural nature.
The design professional in general responsible charge of the project shall certify, in writing, that the plans and specifications for the project meet any applicable fire and life safety standards, and do not specify any work of construction that is regulated by the accessibility standards of Title 24. This certification shall be submitted to DSA, and shall bear the stamp and signature of the design professional.
Within 10 days of the completion of the project, a DSA certified Project Inspector shall sign and submit to DSA a verified report on a form prescribed by DSA, indicating that the project was completed in conformance with the plans and specifications.

(b) Existing noncomplying, nonstructural elements. Existing noncomplying, nonstructural elements discovered during the design or construction of a reconstruction, alteration or addition to an existing complying school building and directly affected by the work of construction shall be corrected to comply with the bracing and anchorage requirements of currently effective regulations.

(c) Required rehabilitation. Existing school buildings for which a reconstruction, alteration or addition project is proposed shall be evaluated and retrofitted as required to comply with currently effective regulations applicable to the rehabilitation of structural systems per Section 4-306, including wind and seismic force requirements, when any of the following conditions occur:

When the cost of the reconstruction, alteration, or addition project exceeds 50 percent of the replacement value of the existing building. Air-conditioning equipment and insulation materials costs, including installation, need not be included in the percentage of replacement value calculation. For the purposes of this section, the cost of the reconstruction, alteration or addition project need not include the cost of voluntary lateral force-resisting system modifications in accordance with Section 4-309(d), except the cost shall be included when the structure is located in a fault hazard zone and a geologic hazard report demonstrates that the structure is located within 50 feet of the trace of an active fault as defined in Section 4-317(e).

When the proposed work results in any of the following:
- A. An increase in the effective seismic weight, or wind force due to increase in surface area exposed to wind, in any story by more than 10 percent, cumulative since the original construction.
- B. A reduction in the lateral-force-resisting capacity or stiffness of any story in any one direction by more than 10 percent, cumulative since the original construction. For the purposes of evaluating the strength or stiffness reduction, any new strengthening as part of the project shall not be included. The capacity or stiffness of the lateralforce-resisting system may include past strengthening that was approved and certified by DSA as the basis for the percentage comparison.

any one direction by more than 10 percent, cumulative since the original construction. For the purposes of evaluating the strength or stiffness reduction, any new strengthening as part of the project shall not be included. The capacity or stiffness of the lateralforce-resisting system may include past strengthening that was approved and certified by DSA as the basis for the percentage comparison.

C. A structural irregularity that is prohibited in ASCE 7 Section 12.3.3.1 and Section 1617A.1.10, Part 2.

3. When a change of occupancy results in a structure being reclassified to a higher risk category.

(d) Voluntary lateral force-resisting system modifications. Alterations to existing structural components or additions of new structural components that do not exceed the limitations of Section 4-309(c)2 for required rehabilitation and are initiated for the purpose of increasing the strength or stiffness of the lateral force-resisting system of an existing structure are permitted to be evaluated and designed in accordance with Section 317.11 of Part 10, Title 24, C.C.R. and Section 1609A, Part 2, Title 24, C.C.R. for voluntary lateral force-resisting system modifications.

(e) When building damage due to an earthquake or wind is repaired, all portions of the building associated to this damage shall be retrofitted to comply with currently effective regulations.

Authority: Education Code Sections 17310 and 81142.

Reference: Education Code Sections 17280, 17295, 81130 and 81133.

HISTORY:

New section filed 2-28-86; effective 30th day thereafter (Register 86, No. 9).
(OSA/SS 1/92) Regular order by the Office of the State Architect/Structural Safety Section to amend Section 4-309, Part 1, Title 24, C.C.R. Filed with the Secretary of State on December 15, 1992; effective July 1, 1993. Approved by the California Building Standards Commission on December 9, 1992.

4-310 School garages, warehouses, storage and similar buildings, dwellings for… ¶

4-310. School garages, warehouses, storage and similar buildings, dwellings for employees and miscellaneous structures.

The Act does not apply to buildings or structures constructed by a school district for the purpose of, and used solely for, storing buses and minor mechanical equipment or for nonschool use where such buildings or structures do not provide facilities for either pupils or teachers and are not intended to be entered by them as such for school purposes. Similarly, the Act does not apply to dwellings or personal residences for teachers or district employees or their family, nor to any building used by a community college district solely for student housing. The Act also does not apply to district-wide administrative buildings on sites separate from school sites, which are not to be used or entered by pupils or teachers, for school purposes. DSA approval for accessibility shall be required in accordance with Section 5-101. Approvals from other agencies may also be required. Such buildings or structures shall not be used for school purposes.

The Act does not apply to school-based health centers, social services or support services qualifying under the provisions of Education Code, Section 17296, housed in stand-alone buildings located on school property that are not to be used for school purposes. Approvals from other agencies will be required for these facilities. Proof of qualification and a copy of the building permit from the local building official will be required to be provided to DSA prior to start of construction.

It shall be the responsibility of the school board to take all necessary measures and precautions to prevent such use and to prevent injuries to pupils or teachers on school grounds as a result of collapse of such buildings or structures. Any such building excluded from the provisions of these regulations shall be posted with a sign pursuant to Sections 17368 and 81160 of the Education Code.

In authorizing and completing the design and construction of district-owned buildings as described in this section, the school board assumes responsibility for employing appropriately licensed architects or registered engineers to prepare the plans and specifications and for adequate inspection of the materials and work of construction to ensure compliance with the provisions of Parts 2, 3, 4, 5, 6, 9, 10, 11 and 12, Title 24, C.C.R., as adopted by the Building Standards Commission.

For these cases DSA requires that a resolution be passed by the school board stating that the building or structure shall not be used for school purposes and that no pupils or teachers, as such, will be permitted to use or enter the said building for said purposes or be subjected to a hazard resulting from its collapse. A copy of the resolution shall be submitted to DSA.

Authority: Education Code Sections 17310 and 81142.

Reference: Education Code Sections 17280, 17283, 17283.5, 17296, 17368, 81050.5, 81130, 81130.5 and 81160.

HISTORY:

(OSA/SS 1/92) Regular order by the Office of the State Architect/Structural Safety Section to amend Section 4-310, Part 1, Title 24, C.C.R. Filed with the Secretary of State on December 15, 1992; effective July 1, 1993. Approved by the California Building Standards Commission on December 9, 1992.

4-311 Condemnation. ¶

DSA has no authority under the Act to order the closing of any school building. However, if requested by the school district or on DSA’s own

4-311. Condemnation. DSA has no authority under the Act to order the closing of any school building. However, if requested by the school district or on DSA’s own volition, DSA shall examine and report on the safety of structural aspects of any school building that appear to be deficient. The report shall state in writing to the school board whether or not the investigated structural aspects of the building are in compliance with the code in effect at the time of construction, and shall also state whether or not the building is safe for school use. (See Sections 4-345 and 4-346.)

Authority: Education Code Sections 17310 and 81142.

Reference: Education Code Sections 17311 and 81143.

HISTORY:

(OSA/SS 1/92) Regular order by the Office of the State Architect/Structural Safety Section to amend Section 4-311, Part 1, Title 24, C.C.R. Filed with the Secretary of State on December 15, 1992; effective July 1, 1993. Approved by the California Building Standards Commission on December 9, 1992.

4-312. Demolition. Demolition is the entire razing or destruction of a school building or a school building unit. It is not necessary to secure the approval of DSA for such demolition. It is the responsibility of the school board to notify DSA of such demolition.

Approval by DSA is required for any partial demolition of existing buildings or any demolition that is part of a reconstruction, rehabilitation, alteration or addition.

Authority: Education Code Sections 17310 and 81142.

Reference: Education Code Sections 17310 and 81142.

HISTORY:

(OSA/SS 1/92) Regular order by the Office of the State Architect/Structural Safety Section to amend Section 4-312, Part 1, Title 24, C.C.R. Filed with the Secretary of State on December 15, 1992; effective July 1, 1993. Approved by the California Building Standards Commission on December 9, 1992.