CRSC · California Referenced Standards Code
Chapter 12 — Part 12 (CRSC) overview & how to use it
Part 12 (CRSC) collects agency-adopted standards referenced by Title 24; use the Cross Reference Table and the specific § (for example § 12-16-101, § 12-31C-101) to find the applicable referenced document and application.
Last reviewed: July 6, 2026
Overview
Part 12 of CCR Title 24 is the California Referenced Standards Code (CRSC). It collects standards adopted by California state agencies (for example, the State Fire Marshal, Division of the State Architect, Department of Public Health) that are referenced throughout the Building Standards Code; the Part is published as the official triennial compilation and supplements and serves as the repository for those agency-adopted standards and their implementing sections.
Why this matters: many technical requirements in the California Building Standards Code point to a Part 12 standard for test methods, product specifications, or certification criteria. Use the Part 12 Cross Reference Table to see which agency adopted the standard and which Title 24 provisions reference it — for example, Chapter listings and cross-references are shown in the Part 12 table of contents and cross-reference table.
How to use Part 12: locate the applicable Chapter (e.g., Chapters for insulating materials, earthquake-actuated gas shutoffs, radiation shielding), open the implementing section to find the scope and the exact referenced document (many sections cite an external standard by name). Examples: § 12-16-101 cites the ASCE/ANSI standard for earthquake-actuated automatic gas shutoff devices; § 12-31C-101 sets radiation shielding requirements referencing NCRP reports; and § 12-13-1565 explains interpretation procedures for insulating materials. Consult those sections directly for the adopted test or installation references and then follow the associated Title 24 linkage in the Cross Reference Table.
In this section
Code references
Grounded in the retrieved California Referenced Standards Code — click a citation to read the verbatim passage:
CRSC § 1009.12 Medium relevance — show source text
Emergency exit and panic hardware.
|SFM|Part 9, Section 1009.12| |Chapter 12-11A,
12-11B|Detectable warning products and directional
surfaces|DSA|Part 2, Sections 1112A.9, 1116A.5, 11B-247,
11B-406.5.12, 11B-705, 11B-810.5.2| |Chapter 12-12|Reserved||| |Chapter 12-13|Standards for insulating material|CA/SFM|Part 2.5, Section R302.10.1
Part 6, Section 110.8
Part 9, Section 720, Table 721.1(1)
Part 11, Section A5.504.4.8| |Chapter 12-16-1|California standard for earthquake-actuated
automatic gas shutoff systems|DSA|Part 2, Chapters 16 and 16A
Part 5, Section 1211.8| |Chapter 12-16-2|California standard for residential excess flow
actuated automatic gas shutoff valves|DSA|Part 5, Section 1209.1| |Chapter 12-31C|Radiation shielding|DPH|Part 2, Section 3102C| |Chapter 12-71|Air filters|SFM|Part 4, Sections 401.2, 509.2.3, 509.2.3.4
Part 6, Section 120.1| |Chapter 12-72-1|Protective signaling systems.
Standard test procedures.|SFM|| |Chapter 12-72-2|Protective signaling systems. Single-and
multiple-station fire alarm devices
mechanically operated type.|SFM|| |Chapter 12-72-3|Protective signaling systems. Smoke detectors,
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12-1 ADMINISTRATION
RESERVED
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12-3 RELEASING SYSTEMS FOR SECURITY BARS IN DWELLINGS
(This standard includes provisions of Underwriters Laboratories Subject 2326, Appendix B, dated December 17, 1999, reprinted with their permission.)
INTRODUCTION
SECTION 12-3-1—SCOPE
12-3-1.1 These requirements cover releasing systems for bars, grilles, mesh, glazing or other items intended to provide security at doors and windows required for emergency escape from dwelling units. When actuated by the occupant, the system allows the obstructions over the door or window to be moved so occupants can escape in the event of an emergency.
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PART 12 CROSS REFERENCE TABLE
(Cross reference table is nonregulatory, intended only as an aid to the code user.)
PART 12
STANDARDSUBJECT ADOPTING
AGENCYASSOCIATED TITLE 24
BUILDING STANDARDChapter 12-3 Releasing systems for security bars in
dwellingsSFM Part 2, Sections 1031.2.1, 1031.6, 1032.7
Part 2.5, Sections R319.1.1 and R319.4.4
Part 9, Sections 1031.2.1, 1031.6, 1032.7
Appendix 4 Section 452.1.5 and Title 19 provisions 4.1, 4.2, 4.3,
4.4, 4.5, 4.6 reprinted in Part 9
Part 10, Section 505.4Chapter 12-4A Laboratory animal quarters standards DPH Part 2, Section 1236 Chapter 12-4-1 Stage and Platforms SFM Part 2, Sections 410.2.7, 410.2.7.1, 410.2.7.2
Part 9, Sections 105.6.51, 4809Chapter 12-7-1 Fire-resistive standards. Fire tests of building
construction and materials.SFM Part 2, Section 703 Chapter 12-7-2 Reserved Chapter 12-7-3 Fire-resistive standards.
Fire testing furnaces.SFM Part 9, Section 3001 Chapter 12-7-4 Fire-resistive standards.
Fire door assembly tests.SFM Part 2, Section 716 Chapter 12-7-5 Fire-resistive standards. Interior
finish of decorative material.SFM Part 2, Chapter 8
Part 9, Chapter 8Chapter 12-7A Materials and construction methods for
exterior wildfire exposureSFM Part 7, Chapter 5 Chapter 12-8-1 Fire-resistive standards for fire protection SFM Part 2, Sections 408.14 and 435.6.2 Appendix 12-8-1A Calculation of the total rate of heat and carbon
monoxide or carbon dioxide productionSFM Appendix 12-8-1B Guide to mounting techniques for wall and
ceiling interior finish materialSFM Chapter 12-10-1 Exits. Power-operated exit doors. SFM Part 2, Sections 408.4.2, 1010.1.4.2, 1010.1.9.1 Chapter 12-10-2 Exits. Single-point latching or locking devices. SFM Part 2, Section 1010.2.2
Part 9, Section 1010.2.2Chapter 12-10-3 Exits. Emergency exit and panic hardware. CRSC § 12-16 Medium relevance — show source text
12-16-1 ENGINEERING REGULATIONS—QUALITY AND
DESIGN OF THE MATERIALS OF CONSTRUCTION
CALIFORNIA STANDARD FOR EARTHQUAKE-ACTUATED AUTOMATIC GAS SHUTOFF SYSTEMS (SEE CCR TITLE 24, PART 2, CHAPTERS 16 AND 16A, AND CCR TITLE 24, PART 5, CHAPTER 12) STANDARD 12-16-1
DIVISION OF THE STATE ARCHITECT
Authority: Sections 19180–19183, Health and Safety Code. Reference: Section 19182, Health and Safety Code.
DIVISION 1—CONSTRUCTION
SCOPE
Sec. 12-16-101. The American Society of Civil Engineers (ASCE) requirements for “Earthquake-Actuated Automatic Gas Shutoff Devices,” ANSI/ASCE/SEI 25-16 (copyright 2016 by ASCE), shall be the applicable standard used by the Division of the State Architect for the certification of these devices.
Sec. 12-16-101.1. Each installation of a customer-owned device that satisfies this standard shall be in accordance with the California Plumbing Code (CCR Title 24, Part 5).
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12-16-2 ENGINEERING REGULATIONS—QUALITY AND
DESIGN OF THE MATERIALS OF CONSTRUCTION
CALIFORNIA STANDARD FOR RESIDENTIAL EXCESS FLOW ACTUATED AUTOMATIC GAS SHUTOFF VALVES (SEE CCR TITLE 24, PART 5, CHAPTER 12) STANDARD 12-16-2
DIVISION OF THE STATE ARCHITECT
Authority: Sections 19200–19204, Health and Safety Code. Reference: Sections 19201.5 and 19202, Health and Safety Code.
DIVISION 1—CONSTRUCTION
SCOPE
Sec. 12-16-201. The American Society for Testing and Materials (ASTM) F2138-12(2017) Standard Specification for Excess Flow Valves for Natural Gas Service, and the American National Standards Institute (ANSI) Z21.93-2017/CSA 6.30-2017 Excess Flow Valves for Natural and LP Gas with Pressure up to 5 psig, shall be the applicable standards used by the Division of the State Architect for certification of these devices.
Sec. 12-16-201.1. Each installation of a customer-owned device that satisfies this standard shall be in accordance with the California Plumbing Code (CCR Title 24, Part 5).
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12-31C RADIATION SHIELDING STANDARDS
STANDARD 12-31C-1
DEPARTMENT OF HEALTH SERVICES
CRSC § 100.0 Medium relevance — show source text
2025 CRSC Reference Standard Code
Converted from PDF using pymupdf4llm Source: 2025 CRSC Reference Standard Code.pdf Text ratio: 100.0% Conversion date: 2025-10-05 09:12:42
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PREFACE
This document is Part 12 of thirteen parts of the official triennial compilation and publication of the adoptions, amendments and repeal of administrative regulations to California Code of Regulations, Title 24, also referred to as the California Building Standards Code. This part is known as the California Referenced Standards Code.
The California Building Standards Code is published in its entirety every three years by order of the California legislature, with supplements published in intervening years. The California legislature delegated authority to various state agencies, boards, commissions and departments to create building regulations to implement the State’s statutes. These building regulations, or standards, have the same force of law, and take effect 180 days after their publication unless otherwise stipulated. The Califor- nia Building Standards Code applies to occupancies in the State of California as annotated.
A city, county, or city and county may establish more restrictive building standards reasonably necessary because of local climatic, geological or topographical conditions. Findings of the local condition(s) and the adopted local building standard(s) must generally be filed with the California Building Standards Commission (or other filing if indicated) to become effective, and may not be effective sooner than the effective date of this edition of the California Building Standards Code . Local building standards that were adopted and applicable to previous editions of the California Building Standards Code do not apply to this edition without appropriate adoption and the required filing.
The referenced standards contained in Part 12 are developed by the state agencies listed herein. The Part 12 Cross Reference Table herein identifies the state agency to which the standard applies, the subject of the standard and the provisions in other parts of Title 24 where the application of the standard is required.
Should you find publication (e.g., typographical) errors or inconsistencies in this code or wish to offer comments toward improving its format, please address your comments to:
California Building Standards Commission 2525 Natomas Park Drive, Suite 130 Sacramento, CA 95833-2936
Phone: (916) 263-0916 Email: cbsc@dgs.ca.gov
Web page: www.dgs.ca.gov/bsc
ACKNOWLEDGMENTS
The 2025 California Building Standards Code (Code) was developed through the outstanding collaborative efforts of the Department of Housing and Community Development, Division of the State Architect, Office of the State Fire Marshal, Department of Health Care Access and Information, California Energy Commission, California Department of Public Health, California State Lands Commission, Board of State and Community Corrections, Department of Water Resources, State Historical Building Safety Board, Department of Consumer Affairs, State Librarian, Department of Food and Agriculture, and the California Building Standards Commission (Commission).
This collaborative effort included the assistance of the Commission’s Code Advisory Committees and many other volunteers who worked tirelessly to assist the Commission in the production of this Code.
Governor Gavin Newsom
Members of the California Building Standards Commission
Secretary Amy Tong – Chair Rajesh Patel – Vice-Chair
CRSC § 9.5 Medium relevance — show source text
The specimen shall be suspended vertically with its lower edge 2 inches (51 mm) above the top of a [3] / 8 inch (9.5 mm) diameter Bunsen Burner. The test shall be performed in a draft-free area.
The flames from the burner shall be 4 inches (101 mm) long and shall be adjusted with sufficient air supply to eliminate any yellow flame tips but without any distinct inner blue cone.
The specimen shall be exposed to the flame at each corner and at not less than one other point along the lower edge. Each exposure shall be of sufficient duration to determine if the material will ignite and continue to burn, but shall be not less than 20 seconds.
The criteria for acceptance shall be as follows: (A) There shall be not more than intermittent flaming appreciably beyond the area exposed to the test flame. (B) Flame shall not reach the top of the specimen. (C) On removing the test flame there shall be not more than 1 second of after flaming except there may be nonprogressive flaming of short duration in areas of accumulated char which were directly exposed to the test flame.
Section 12-7-502
(a) Framed rigid combustible decorative material. Rigid combustible decorative material and assemblies of materials not more than [1] / 4 inch (6 mm) in thickness used for folding doors, room dividers, decorative screens and similar applications, and which are installed with all edges protected, shall conform to the following:
All exposed edges shall be protected with frames of metal or other noncombustible material, or solid wood of minimum [1] / 4 inch (6 mm) dimension.
The total square foot area of the material shall not exceed ten percent of that of the floor area of the room in which the material is installed.
When tested as follows, flames shall not reach the top edge of the specimen. The test shall be conducted in a draft free area, on a specimen of the material 12 inches by 12 inches (305 mm by 305 mm) suspended at a 45-degree angle from the horizontal with the upper and lower edges in a horizontal plane. The test flame shall be 3 inches (76 mm) long from a Bunsen burner of approximately [1] / 2 -inch (13 mm) inside diameter with the air supply completely shut off. The burner shall be positioned so that its top is 1 inch (25 mm) vertically below a point on the lower surface of the test specimen, 1 inch (25 mm) up from its lower horizontal edge and midway between the inclined edges. The exposure to the test flame and the duration of test shall be for a period of 2 minutes.
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12-7A MATERIALS AND CONSTRUCTION METHODS
FOR EXTERIOR WILDFIRE EXPOSURE
EXTERIOR WALL SIDING AND SHEATHING
SFM STANDARD 12-7A-1
12-7A-1.1 Application. The minimum design, construction and performance standards set forth herein for exterior wall siding and sheathing are those deemed necessary to establish conformance to the provisions of these regulations. Materials and assemblies that meet the performance criteria of this standard are acceptable for use as defined in California Building Standards Code.
CRSC § 25.4 Medium relevance — show source text
For SI: 1 inch = 25.4 mm, 1 pound per square inch = 0.00689 MPa, 1 ton = 8.896 kN.
Notes:
- Failure mode—collapse.
- Failed on furnace removal.
TABLE 2.1.11
HEXAGONAL REINFORCED CONCRETE COLUMNS
MINIMUM DIMENSION—20″ TO LESS THAN 22″Col2 Col3 Col4 Col5 Col6 Col7 Col8 Col9 Col10 ITEM
CODEMINIMUM
DIMENSIONCONSTRUCTION DETAILS PERFORMANCE PERFORMANCE REFERENCE NUMBER REFERENCE NUMBER REFERENCE NUMBER NOTES REC.
HOURSITEM
CODEMINIMUM
DIMENSIONCONSTRUCTION DETAILS LOAD TIME PRE- BMS-92 BMS-92 POST-BMS-92 POST-BMS-92 POST-BMS-92 C-20-HRC-1 20″ 20″ hexagonal columns; gravel concrete
(6080 psi); reinforcement: vertical,3/4″
rebars; horizontal,5/16″ helical winding on
13/4″ pitch; cover:1/2″.211
tons2 hrs 7 1 2 C-20-HRC-2 20″ 20″ hexagonal columns; gravel concrete
(5080 psi); reinforcement: vertical,3/4″
rebars; horizontal,5/16″ wire on 13/4″ pitch;
cover:1/2″.184
tons2 hrs
15 min7 2–4 21/4 For SI: 1 inch = 25.4 mm, 1 pound per square inch = 0.00689 MPa, 1 ton = 8.896 kN.
Notes:
Column collapsed on furnace removal.
Passed 2 [1] / 4 -hour fire test.
Passed hose stream test.
Withstood reload after 48 hours.
TABLE 2.2
ROUND CAST IRON COLUMNSCol2 Col3 Col4 Col5 Col6 Col7 Col8 Col9 Col10 ITEM
CODEMINIMUM
DIMENSIONCONSTRUCTION DETAILS PERFORMANCE PERFORMANCE REFERENCE NUMBER REFERENCE NUMBER REFERENCE NUMBER NOTES REC.
HOURSITEM
CODEMINIMUM
DIMENSIONCONSTRUCTION DETAILS LOAD TIME PRE-BMS-92 BMS-92 POST-BMS-92 POST-BMS-92 POST-BMS-92 C-7-CI-1 7″ O.D. Column: 0.6″ minimum metal thickness;
unprotected.CRSC § 12-16 Medium relevance — show source text
CALIFORNIA STANDARD FOR RESIDENTIAL EXCESS FLOW ACTUATED AUTOMATIC GAS SHUTOFF VALVES (SEE CCR TITLE 24, PART 5, CHAPTER 12) STANDARD 12-16-2
DIVISION OF THE STATE ARCHITECT
Authority: Sections 19200–19204, Health and Safety Code. Reference: Sections 19201.5 and 19202, Health and Safety Code.
DIVISION 1—CONSTRUCTION
SCOPE
Sec. 12-16-201. The American Society for Testing and Materials (ASTM) F2138-12(2017) Standard Specification for Excess Flow Valves for Natural Gas Service, and the American National Standards Institute (ANSI) Z21.93-2017/CSA 6.30-2017 Excess Flow Valves for Natural and LP Gas with Pressure up to 5 psig, shall be the applicable standards used by the Division of the State Architect for certification of these devices.
Sec. 12-16-201.1. Each installation of a customer-owned device that satisfies this standard shall be in accordance with the California Plumbing Code (CCR Title 24, Part 5).
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12-31C RADIATION SHIELDING STANDARDS
STANDARD 12-31C-1
DEPARTMENT OF HEALTH SERVICES
Authority: Sections 102, 208 and 25811.
Reference: Sections 102, 208 and 436.5.
ALL HEALING ARTS X-RAY INSTALLATIONS
Sec. 12-31C-101. All radiation shielding barriers in rooms and enclosures housing radiation machines shall comply with the mandatory standards and appendices in Report No. 35, “Dental X-RAY Protection”; Report 49, “Structural Shielding Design and Evaluation for Medical use of X-rays and Gamma Rays of Energies up to 10 MeV”; and Report No. 51, “Radiation Protection Design Guidelines for 0.1-100 MeV Particle Accelerator Facilities.” Published by the National Council on Radiation Protection and Measurements, 7910 Woodmont Avenue, Bethesda, Maryland 20814.
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12-71 AIR FILTERS
STANDARD 12-71-1
STATE FIRE MARSHAL
DESCRIPTION OF TEST APPARATUS, METHOD AND CLASSIFICATION REQUIREMENTS FOR AIR FILTERS
Sec. 12-71-100.
(a) Test apparatus.
- The test duct, made of M.S. gage galvanized sheet metal reinforced with angle irons, is 21 inches square (13 548 mm [2] ) and 13 [1] / 2 feet (4114 mm) long.
CRSC § 12-10 Medium relevance — show source text
CHAPTER 12-10-1 EXITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
CHAPTER 12-10-2 EXITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
CHAPTER 12-10-3 EXITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
CHAPTERS 12-11A AND 12-11B
BUILDING AND FACILITY ACCESS
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . 85
CHAPTER 12-12 RESERVED . . . . . . . . . . . . . . . . . . . . . . . . . 87
CHAPTER 12-13 STANDARDS FOR INSULATING
MATERIAL. . . . . . . . . . . . . . . . . . . . . . . . . . 89
CHAPTER 12-16-1 ENGINEERING REGULATIONS—QUALITY
AND DESIGN OF THE MATERIALS OF
CONSTRUCTION . . . . . . . . . . . . . . . . . . . 101
CHAPTER 12-16-2 ENGINEERING REGULATIONS—QUALITY
AND DESIGN OF THE MATERIALS OF
CONSTRUCTION . . . . . . . . . . . . . . . . . . . 103
CHAPTER 12-31C RADIATION SHIELDING STANDARDS . . 105
CHAPTER 12-71 AIR FILTERS. . . . . . . . . . . . . . . . . . . . . . . 107
CHAPTER 12-72-1 PROTECTIVE SIGNALING SYSTEMS . . . 109
CHAPTER 12-72-2 PROTECTIVE SIGNALING SYSTEMS . . . 123
CHAPTER 12-72-3 PROTECTIVE SIGNALING SYSTEMS . . . 133
HISTORY NOTE APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
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PART 12 CROSS REFERENCE TABLE
(Cross reference table is nonregulatory, intended only as an aid to the code user.)
CRSC § 1.5 Medium relevance — show source text
;
clips D, E, F, G; diagonal wire reinforcement;
1/2″ plaster, 1.5:2.5.|145 psf|2 hrs
46 min|||3|3, 8|23/4| |F/C-S-5|1/2″|10′ × 13′6″; S.J. 103, 24″ o.c.; deck: 2″
concrete, 1:2:4; membrane: furring 16″ o.c.;
clips A, B, G; no extra reinforcement;
1/2″ plaster, 1.5:2.5.|145 psf|1 hr
4 min|||3|2, 3, 8|1| |F/C-S-6|1/2″|10′ × 13′6″; S.J. 103, 24″ o.c.; deck: 2″
concrete, 1:2:4; membrane: furring 16″ o.c.;
clips D, E, F, G; hexagonal mesh
reinforcement;1/2″ plaster.|145 psf|3 hrs
28 min|||3|2, 4, 8|21/3| |F/C-S-7|1/2″|10′ × 13′6″; S.J. 103, 24″ o.c.; deck: 4 lbs rib
lath; 6″ × 6″ 10 × 10 gage reinforcement; 2″
deck gravel concrete; membrane: furring 16″
o.c.; clips C, E; reinforcement: none;1/2″ plas-
ter, 1.5:2.5 mill mix.|N/A|55 min|||3|5, 8|3/4|RESOURCE A-96 2025 CALIFORNIA EXISTING BUILDING CODE
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RESOURCE A—GUIDELINES ON FIRE RATINGS OF ARCHAIC MATERIALS AND ASSEMBLIES
TABLE 3.2—continued
FLOOR/CEILING ASSEMBLIES—STEEL STRUCTURAL ELEMENTSCol2 Col3 Col4 Col5 Col6 Col7 Col8 Col9 Col10 ITEM
CODEMEMBRANE
THICKNESSCONSTRUCTION DETAILS PERFORMANCE PERFORMANCE REFERENCE NUMBER REFERENCE NUMBER REFERENCE NUMBER NOTES REC.
HOURSITEM
CODEMEMBRANE
THICKNESSCONSTRUCTION DETAILS LOAD TIME PRE-BMS-92 BMS-92 POST-BMS-92 POST-BMS-92 POST-BMS-92 F/C-S-8 1/2″ Spec. 9′ × 4′4″; S.J. 103 bar joists, 18″ o.c. CRSC § 8-34 Medium relevance — show source text
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COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL
SYSTEM OPERATIONS TRAINING
COMPLIANCE FORM
CALGreen Commissioning Requirement 5.410.2.5.2, System Operations Training
5.410.2.5.2 Systems Operations Training. [N] A program for training of the appropriate maintenance staff for each equipment type and/or system shall be developed and documented in the commissioning report and shall include the following.
(See elements checklist below.)
The written training program includes the checked elements listed below.
Col1 TRAINING PROGRAM ELEMENTS INCLUDED 1. System/equipment overview (what it is, what it does, and with what other systems and/or equipment it
interfaces) 2. Review and demonstration of servicing and preventive maintenance 3. Review of the information in the systems manual 4. Review of the record drawings on the system/equipment The owner or owner’s representative attests that when the appropriate maintenance staff are made available prior to certificate of occupancy that the written training program was executed with these staff. Or, if appropriate maintenance staff are not available, that the written training program was submitted and approved by the owner or owner’s representative.
Owner/Owner’s Representative Signature Date
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COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL
SYSTEM OPERATIONS TRAINING
COMPLIANCE FORM
THIS FORM IS TO BE COMPLETED PRIOR TO INSPECTION
Project Address: _________________________________________________________
Permit Number: _____________________________
Part One: Systems Manual
ITEM # SYSTEMS MANUAL ELEMENTS PAGE
NUMBER
IN MANUALSITE INFORMATION 1 General (i.e. address, acreage, local utility information, other) 2 Facility description (i.e. use/function, square footage, occupancy type, construction type, basis of design, location
of major systems and equipment)3 Project history (i.e. project requirements (BOD/OPR), project undocumented events, record drawings and
documents, final control drawings and schematics, final control sequences, construction documents)4 Current requirements (i.e. building operating schedules, space temperature, humidity, pressure, CO2 setpoints, summer
and winter setback schedules, chilled and hot water temperatures, as-built control setpoints and parameters)SITE CONTACT INFORMATION 5 Owner information 6 Emergency contacts 7 Design team (i.e. architect, mechanical engineer, electrical engineer, other) 8 Prime contractor contact information 9 Subcontractor information 10 Equipment supplier contact information BASIC OPERATIONS AND MAINTENANCE 11 Basic operation (i.e. narratives of basic equipment operation, interfaces, interlocks and interaction with other
equipment and systems, initial maintenance provided by the contractor)12 General site-operating schedules (i.e. instructions for changes in major system operating schedules, CRSC § 12-16 Medium relevance — show source text
CHAPTER 12-16-1 ENGINEERING REGULATIONS—QUALITY
AND DESIGN OF THE MATERIALS OF
CONSTRUCTION . . . . . . . . . . . . . . . . . . . 101
CHAPTER 12-16-2 ENGINEERING REGULATIONS—QUALITY
AND DESIGN OF THE MATERIALS OF
CONSTRUCTION . . . . . . . . . . . . . . . . . . . 103
CHAPTER 12-31C RADIATION SHIELDING STANDARDS . . 105
CHAPTER 12-71 AIR FILTERS. . . . . . . . . . . . . . . . . . . . . . . 107
CHAPTER 12-72-1 PROTECTIVE SIGNALING SYSTEMS . . . 109
CHAPTER 12-72-2 PROTECTIVE SIGNALING SYSTEMS . . . 123
CHAPTER 12-72-3 PROTECTIVE SIGNALING SYSTEMS . . . 133
HISTORY NOTE APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
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PART 12 CROSS REFERENCE TABLE
(Cross reference table is nonregulatory, intended only as an aid to the code user.)
PART 12
STANDARDSUBJECT ADOPTING
AGENCYASSOCIATED TITLE 24
BUILDING STANDARDChapter 12-3 Releasing systems for security bars in
dwellingsSFM Part 2, Sections 1031.2.1, 1031.6, 1032.7
Part 2.5, Sections R319.1.1 and R319.4.4
Part 9, Sections 1031.2.1, 1031.6, 1032.7
Appendix 4 Section 452.1.5 and Title 19 provisions 4.1, 4.2, 4.3,
4.4, 4.5, 4.6 reprinted in Part 9
Part 10, Section 505.4Chapter 12-4A Laboratory animal quarters standards DPH Part 2, Section 1236 Chapter 12-4-1 Stage and Platforms SFM Part 2, Sections 410.2.7, 410.2.7.1, 410.2.7.2
Part 9, Sections 105.6.51, 4809Chapter 12-7-1 Fire-resistive standards. CRSC § 12-7 Medium relevance — show source text
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- The California Code of Regulations (CCR), Title 19, Division 1 provisions that are found in the California Wildland-Urban Interface Code are a reprint from the current CCR, Title 19, Division 1 text for the code user’s convenience only. The scope, applicability and appeals procedures of CCR, Title 19, Division I remain the same. The state agency does not adopt sections identified by the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.
The California Code of Regulations (CCR), Title 14, Division 1.5 provisions that are found in the California Wildland-Urban Interface Code are not listed in the Matrix Adoption Tables as they are not within the State Fire Marshal’s authority to adopt. These provisions are a reprint from the current CCR, Title 14, Division 1.5 text for the code user’s convenience only and are identified in the body of the code by square brackets containing references to applicable Title 14 sections.
2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE 7-1
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
7-2 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
7 REFERENCED STANDARDS
User notes:
About this chapter: This code contains numerous references to standards promulgated by other organizations that are used to provide requirements for materials and methods of construction. This chapter contains a comprehensive list of all standards that are referenced in this code. These standards, in essence, are part of this code to the extent of the reference to the standard.
This chapter lists the standards that are referenced in various sections of this document. The standards are listed herein by the promulgating agency of the standard, the standard identification, the effective date and title, and the section or sections of this document that reference the standard.
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Frequently asked questions
What is the quickest way to tell whether a Part 12 standard applies to my project?
Find the Title 24 provision that governs your subject (e.g., plumbing, means of egress), then check the Part 12 Cross Reference Table and the Chapter table of contents to see if a Chapter/section in Part 12 is listed as the referenced standard for that provision. The Cross Reference Table is intended as a user aid for exactly this lookup.
Do Part 12 standards themselves include the full external standards text?
Many Part 12 sections identify and incorporate an external standard by reference (naming the ASC/ANSI/ASTM/NCRP document and edition) and set the scope and mandatory California amendments or application notes; the section (for example § 12-16-101) tells you which external standard is the applicable document to obtain.
Are the Part 12 Cross Reference Table and Chapter listings regulatory?
The Cross Reference Table is nonregulatory and provided as an aid, but the individual Part 12 sections adopted by state agencies are part of the California Building Standards framework and are applied where referenced in Title 24. Use the table for orientation and consult the cited section text for regulatory requirements.
More in California Referenced Standards Code
- Administration and scope — CRSC Chapter 12 overview
- Air filter standards (Chapter 12‑71)
- Building and facility access / accessibility standards (Chapters 12‑11A, 12‑11B)
- Engineering regulations — quality and design of construction materials (12‑16 series)
- Exits and means of egress (Chapters 12‑10 series)
- Protective signaling systems and detectors (Chapters 12‑72‑1, ‑2, ‑3)
- Radiation shielding standards (Chapter 12‑31C)
- Referenced standards index / cross‑reference table (Part 12 listing of referenced standards)
- Releasing systems for security bars (egress-release standards)
- Standards for insulating materials (Chapter 12‑13)
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