Which standards address interior finish and contribution to room fire growth?

Grounded in the retrieved California Residential Code — click a citation to read the verbatim passage:

• CRC § 44-18 High relevance — show source text

  R303.4

  44-18 2025 CALIFORNIA RESIDENTIAL CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  REFERENCED STANDARDS

  276—23: Standard Method of Fire Test for Determining the Heat Release Rate of Roofing Assemblies with Combustible Above- Deck Roofing Components

  R906.1

  286— 24 : Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth

  R302.9.4, R303.6

  501—22: Standard on Manufactured Housing

  R202

  720—15: Standard for the Installation of Carbon Monoxide (CO) Detection and Warning Equipment

  R311.7.1, R311.7.2

  PCA Portland Cement Association 5420 Old Orchard Road Skokie, IL 60077

  100—17: Prescriptive Design of Exterior Concrete Walls for One- and Two-family Dwellings (Pub. No. PCA 100.3)

  R301.2.2.5, R404.1.3, R404.1.3.2.1, R404.1.3.2.2, R404.1.3.4, R404.1.4.2, R608.1, R608.2, R608.5.1, R608.9.2, R608.9.3

  PTI Post-Tensioning Institute 38800 Country Club Drive Farmington Hills, MI 48331

  PTIDC10.5—19: Standard Requirements for Design and Analysis of Shallow Concrete Foundations on Expansive and Stable Soils

  R506.2

  SBCA Structural Building Components Association 6300 Enterprise Lane Madison, WI 53719

  BCSI—2018: Building Component Safety Information—Guide to Good Practice for Handling, Installing, Restraining & Bracing of Metal Plate Connected Wood Trusses

  R502.12.2, R802.10.3

  CFS-BCSI—(updated June 2016): Cold-formed Steel Building Component Safety Information (CFSBCSI)—Guide to Good Practice for Handling, Installing & Bracing of Cold-formed Steel Trusses

  R505.1.3, R804.3.6

  SFM State of California Department of Forestry and Fire Protection, Office of the State Fire Marshal, P.O. Box 944246, Sacramento, CA

  944246-2460

  SFM—12-3: Releasing Systems for Security Bars in Dwellings

  SFM 12-7A-1: Exterior Wall Siding and Sheathing

  SFM 12-7A-2: Exterior Window

  SFM 12-7A-3: Horizontal Protection Underside

  SFM 12-7A-4: Decking

  SFM 12-7A-4A: Decking Alternate Method A

  (The Office of the State Fire Marshal standards referred to above are found in the California Code of Regulations, Title 24, Part 12.)

  TMS The Masonry Society 105 South Sunset Street, Suite Q Longmont, CO 80501

  402—2022: Building Code Requirements for Masonry Structures

• CRC § 29.3.1 High relevance — show source text

  Revise Section 29.3.1 to read as follows: 29.3.1 All devices, combinations of devices and equipment to be installed in conformity with this chapter shall be approved and listed by the California State Fire Marshal for the purposes for which they are intended.

  Revise Section 29.8.2.1.1 to read as follows: 29.8.2.1.1 Smoke and Heat Alarms.* Where connected to a supervising station unless exempted by applicable laws, codes or stan- dards, smoke or heat alarms used to provide a fire-warning function, and when two or more alarms are installed within a dwelling unit, suite of rooms, or similar area, shall be arranged so that the operation of any smoke or heat alarm causes all alarms within these loca- tions to sound.

  Note: Exception to 29.8.2.1.1 not adopted by the SFM

  Add Section 29.10.2.1 to read as follows: 29.10.2.1 The alarm verification feature shall not be used for household fire warning equipment.

  Add Section 29.10.6.8.1 to read as follows: 29.10.6.8.1 The alarm verification feature shall not be used for household fire warning equipment.

  211— 24 : Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances

  R1002.5

  259—23: Standard for Test Method for Potential Heat of Building Materials

  R303.5.7, R303.5.8

  275—22: Standard Method of Fire Tests for the Evaluation of Thermal Barriers

  R303.4

  44-18 2025 CALIFORNIA RESIDENTIAL CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  REFERENCED STANDARDS

  276—23: Standard Method of Fire Test for Determining the Heat Release Rate of Roofing Assemblies with Combustible Above- Deck Roofing Components

  R906.1

  286— 24 : Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth

  R302.9.4, R303.6

  501—22: Standard on Manufactured Housing

  R202

  720—15: Standard for the Installation of Carbon Monoxide (CO) Detection and Warning Equipment

  R311.7.1, R311.7.2

  PCA Portland Cement Association 5420 Old Orchard Road Skokie, IL 60077

  100—17: Prescriptive Design of Exterior Concrete Walls for One- and Two-family Dwellings (Pub. No. PCA 100.3)

  R301.2.2.5, R404.1.3, R404.1.3.2.1, R404.1.3.2.2, R404.1.3.4, R404.1.4.2, R608.1, R608.2, R608.5.1, R608.9.2, R608.9.3

  PTI Post-Tensioning Institute 38800 Country Club Drive Farmington Hills, MI 48331

  PTIDC10.5—19: Standard Requirements for Design and Analysis of Shallow Concrete Foundations on Expansive and Stable Soils

  R506.2

• CRC § 7-1 High relevance — show source text

  Note: See State Fire Marshal (SFM) 7-1 and Uniform Building Code (UBC) Standard 8-1.

  This standard can be used to evaluate the effectiveness of thermal barriers in restricting the contribution of combustible materials in the wall and floor assemblies to fire growth in a padded safety cell. This standard shall be used in conjunction with ASTM E603-77, “Standard Guide for Room Fire Experiments,” which covers instrumentation, safety precautions and the general effect of various parameters.

  (b) Tests and listings by approved testing agency. Test data for wall and/or ceiling materials or assemblies investigated and tested in accordance with the Standard for Safety established by Underwriters Laboratories, Inc., UL 723C, “Investigation for the Classification of Wall and Ceiling Interior Finish Materials and Assemblies Using a Room Fire Test,” will be acceptable for evaluation against this standard, provided all instrumentation data required by this standard is incorporated in the test and report.

  (c) Test simulation. The test simulates a fire in the comer of an 8-foot by 12-foot (2438 mm by 3657 mm) compartment containing a single open doorway; this can be used to evaluate the relative performance of specific wall, ceiling and floor materials or assemblies when they are used together in the same relationship within an enclosure, in addition to simulating the manner in which they will be used.

  (d) Materials considered. The test may be used for evaluating wall, ceiling and flooring finish materials and assemblies, including panels, tiles, boards, sprayed or brushed coatings, etc.

  FIRE AND SMOKE MEASUREMENTS AND PHOTOGRAPHIC RECORD

  Sec. 12-8-102.

  (a) Significance. This fire test is applicable to a description of certain fire performance characteristics in appraising wall, ceiling and flooring materials, products or systems under specified fire exposure conditions in an enclosure. The test indicates the maximum extent of fire growth in an enclosure, the rate of heat release, and if they occur, the time to flashover and the time to flame extension beyond the doorway following flashover. Time to flashover is either the time when the radiant flux onto the floor reaches 20 kW/m [2] or the average temperature of the upper air reaches 1100°F (593°C). A crumpled up single sheet of newspaper may be placed on the floor 3 feet (914 mm) out from the center of the front wall.

  The spontaneous ignition of this newspaper will provide a visual indication of flashover. It determines both the extent to which the wall and ceiling materials or assemblies may contribute to fire growth in a compartment and the potential for fire spread beyond the compartment under the particular conditions simulated. It does not measure the contribution of the furnishing materials.

  (b) Fire measurements. The potential for the spread of fire to other objects in the enclosure interior, remote from the ignition source, is evaluated by measurements of:

  1. The total heat flux incident at the center of the floor.

  2. A characteristic upper level gas temperature in the test compartment.

  (c) Fire spread potential. The potential for the spread of fire to objects outside the compartment of origin is evaluated by the measurement of the total rate of heat release of the fire.

  (d) Smoke measurements. Measurements of the rate of production of carbon monoxide and visible smoke are taken.

  (e) Photographic record. The overall performance of the test specimen is to be visually documented by full color photographic records. Videotaping of the complete fire test may be done as an alternate to the continuous photographic record. Such records may show when each area of the test specimen becomes involved in the fire.

• CRC § 804.3.1 High relevance — show source text

  253—23: Standard Method of Test for Critical Radiant Flux of Floor Covering Systems Using a Radiant Heat Energy Source

  804.3.1, 804.3.2, 804.4

  260— 24 : Standard Methods of Tests and Classification System for Cigarette Ignition Resistance of Components of Upholstered Furniture

  805.1.1.1, 805.2.1.1, 805.3.1.1, 805.4.1.1

  261—23: Standard Method of Test for Determining Resistance of Mock-Up Upholstered Furniture Material Assemblies to Ignition by Smoldering Cigarettes

  805.1.1.1, 805.2.1.1, 805.3.1.1, 805.4.1.1

  265—23: Standard Methods of Fire Tests for Evaluating Room Fire Growth Contribution of Textile or Expanded Vinyl Wall Coverings on Full Height Panels and Walls

  803.5.1, 803.5.1.1

  286— 24 : Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth

  803.1, 803.1.1, 803.1.1.1, 803.3, 803.12, 803.13, 804.1.1, 804.2.4

  289—23: Standard Method of Fire Test for Individual Fuel Packages

  807.3, 807.4.1, 807.5.1.1, 808.2

  303—21: Fire Protection Standard for Marinas and Boatyards

  3603.5, 3603.6, 3604.2

  318— 25 : Standard for the Protection of Semiconductor Fabrication Facilities

  2703.16

  326— 25 : Standard for the Safeguarding of Tanks and Containers for Entry, Cleaning, or Repair

  3510.1

  385—22: Standard for Tank Vehicles for Flammable and Combustible Liquids

  5706.5.4.5, 5706.6, 5706.6.1, 5707.2

  400— 25 : Hazardous Materials Code

  5601.1.5, Table 6303.1.4, 6304.1.2, Table 6304.1.5(1), Table 6304.1.5(2)

  407—22: Standard for Aircraft Fuel Servicing

  2006.2, 2006.3

  409—22: Standard on Aircraft Hangars 914.8.3, Table 914.8.3, 914.8.3.1, 914.8.6

  410— 25 : Standard on Aircraft Maintenance

  2004.7

  484—22: Standard for Combustible Metals

  319.3.4, 319.3.6, Table 2205.1

  495—23: Explosive Materials Code

• CRC § 803.5.1.1 High relevance — show source text

  803.5.1.1 Acceptance criteria for NFPA 265 Method B test protocol. Where testing to NFPA 265, the interior finish shall comply with the following:

  1. During the 40-kW exposure, flames shall not spread to the ceiling.
  2. The flame shall not spread to the outer extremities of the samples on the 8-foot by 12-foot (203 by 305 mm) walls.
  3. Flashover, as defined in NFPA 265, shall not occur.
  4. For newly introduced wall coverings, the total smoke released throughout the test shall not exceed 1,000 m [2] .

  803.5.1.2 Unframed rigid combustible decorative material. Rigid combustible decorative material and assemblies of materials not more than [1] / 4 inch in thickness used for folding doors, room dividers, decorative screens and similar applications, which do not create concealed spaces and which are installed with exposed edges, shall be flame resistant in accordance with SFM Standard 12-7-5 contained in Title 24, Part 12, California Referenced Standards Code.

  803.5.1.3 Framed rigid combustible decorative material. Rigid combustible decorative material and assemblies of materials not more than [1] / 4 inch in thickness used for folding doors, room dividers, decorative screens and similar applications, and which are installed with all edges protected, shall conform to SFM Standard 12-7-5 contained in Title 24, Part 12, California Referenced Standards Code.

  803.5.2 Acceptance criteria for wall and ceiling coverings. Textile wall and ceiling coverings shall have a Class A flame spread index in accordance with ASTM E84 or UL 723, and be protected by an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2. Test specimen preparation and mounting shall be in accordance with ASTM E2404.

  803.6 Textile ceiling coverings. Where used as interior ceiling finish materials, textile ceiling coverings, including materials having a woven, nonwoven, napped, tufted, looped or similar surface and carpet or similar textile materials, shall be tested in the manner intended for use, using the product mounting system, including adhesive, and shall comply with the requirements of Section 803.1.1 or 803.5.2.

  803.7 Expanded vinyl wall coverings. Where used as interior wall finish materials, expanded vinyl wall coverings shall be tested in the manner intended for use, using the product mounting system, including adhesive, and shall comply with the requirements of Section 803.1.1, 803.5.1 or 803.5.2.

  803.8 Expanded vinyl ceiling coverings. Where used as interior ceiling finish materials, expanded vinyl ceiling coverings shall be tested in the manner intended for use, using the product mounting system, including adhesive, and shall comply with the requirements of Section 803.1.1 or 803.5.2.

  [BF] 803.9 High-density polyethylene (HDPE) and polypropylene (PP). Where high-density polyethylene or polypropylene is used as an interior finish, it shall comply with Section 803.1.1.

• CRC § 803.5.1 High relevance — show source text

  803.5.1, 803.5.1.1

  268—22: Standard Test Method for Determining Ignitability of Exterior Wall Assemblies Using a Radiant Heat Energy Source

  1405.1.1.1, 1405.1.1.1.1, 1405.1.1.1.2, 2603.5.7

  275—22: Standard Method of Fire Tests for the Evaluation of Thermal Barriers

  508.4.4.1, 509.4.1.1, 1406.10.2, 1408.10.2, 2603.4

  276—23: Standard Method of Fire Test for Determining the Heat Release Rate of Roofing Assemblies with Combustible Above- Deck Roofing Components

  1508.1, 2603.3, 2603.4.1.5

  285—23: Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of Exterior Wall Assemblies Containing Combustible Components

  718.2.6, 1402.6, 1406.10.3, 1408.10.4, 1511.6.2, 2603.5.5

  286— 24 : Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth

  402.6.4.4, 424.2, 803.1.1, 803.1.1.1, 803.11, 803.12, 803.13, 1406.10.2, 1408.10.3, 2603.7, 2603.9, 2604.2.4, 2614.4, 3105.3

  288—22: Standard Methods of Fire Tests of Horizontal Fire Door Assemblies Installed in Horizontal Fire Resistance-Rated Assemblies

  712.1.13.1

  289—23: Standard Method of Fire Test for Individual Fuel Packages

  402.6.2, 402.6.4.5, 424.2, 806.4

  409—22: Standard on Aircraft Hangars 412.3.6, Table 412.3.6, 412.3.6.1, 412.5.5

  418— 24 : Standard for Heliports

  412.7.4

  484—22: Standard for Combustible Metals

  426.1

  502—20: Standard for Road Tunnels, Bridges, and Other Limited Access Highways

  429

  652—19: Standard on the Fundamentals of Combustible Dust

  426.1

  654—20: Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids

  426.1

  35-38 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  REFERENCED STANDARDS

  655—19: Standard for the Prevention of Sulfur Fires and Explosions

  426.1

  664—20: Standard for the Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities

  426.1

  701—23: Standard Methods of Fire Tests for Flame Propagation of Textiles and Films

• CRC § 1025.2.6.1 High relevance — show source text

  170— 24 : Standard for Fire Safety and Emergency Symbols

  1025.2.6.1

  211— 24 : Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances

  2112.5

  221—24: Standard for High Challenge Fire Walls, Fire Walls and Fire Barrier Walls 706.2, Table 716.1(2)

  252—22: Standard Methods of Fire Tests of Door Assemblies

  Table 716.1(1), 716.1.1, 716.1.2.2.1, 716.2.1.1, 716.2.1.2, 716.2.2.1, 716.2.2.2, 716.2.2.3.1, 716.2.5.1.1

  253—23: Standard Method of Test for Critical Radiant Flux of Floor Covering Systems Using a Radiant Heat Energy Source

  406.2.4, 424.2, 804.2, 804.3

  257—22: Standard on Fire Test for Window and Glass Block Assemblies

  Table 716.1(1), 716.1.1, 716.1.2.2.2, 716.3.1.1, 716.3.1.2, 716.3.2.1.3, 716.3.4

  259—23: Standard Test Method for Potential Heat of Building Materials

  2603.4.1.10, 2603.5.3

  265—23: Standard Methods of Fire Tests for Evaluating Room Fire Growth Contribution of Textile or Expanded Vinyl Wall Coverings on Full Height Panels and Walls

  803.5.1, 803.5.1.1

  268—22: Standard Test Method for Determining Ignitability of Exterior Wall Assemblies Using a Radiant Heat Energy Source

  1405.1.1.1, 1405.1.1.1.1, 1405.1.1.1.2, 2603.5.7

  275—22: Standard Method of Fire Tests for the Evaluation of Thermal Barriers

  508.4.4.1, 509.4.1.1, 1406.10.2, 1408.10.2, 2603.4

  276—23: Standard Method of Fire Test for Determining the Heat Release Rate of Roofing Assemblies with Combustible Above- Deck Roofing Components

  1508.1, 2603.3, 2603.4.1.5

  285—23: Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of Exterior Wall Assemblies Containing Combustible Components

  718.2.6, 1402.6, 1406.10.3, 1408.10.4, 1511.6.2, 2603.5.5

  286— 24 : Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth

  402.6.4.4, 424.2, 803.1.1, 803.1.1.1, 803.11, 803.12, 803.13, 1406.10.2, 1408.10.3, 2603.7, 2603.9, 2604.2.4, 2614.4, 3105.3

• CRC § 1030.6.2 High relevance — show source text

  101—24: Life Safety Code

  1030.6.2

  105— 25 : Standard for Smoke Door Assemblies and Other Opening Protectives 705.2, 706.1, Table 901.6.1, 909.18.3

  110— 25 : Standard for Emergency and Standby Power Systems

  913.5.2, 913.5.3, 1203.1.3, 1203.4, 1203.5, 3111F

  111— 25 : Standard on Stored Electrical Energy Emergency and Standby Power Systems

  1203.1.3, 1203.4, 1203.5, 3111F

  80-20 2025 CALIFORNIA FIRE CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  REFERENCED STANDARDS

  120— 23 : Standard for Fire Prevention and Control in Coal Mines

  Table 2205.1

  160—21: Standard for the Use of Flame Effects Before an Audience

  308.3.2

  170— 24 : Standard for Fire Safety and Emergency Symbols

  1025.2.6.1

  204— 24 : Standard for Smoke and Heat Venting Table 901.6.1, 910.5.1, 910.5.2

  232—22: Standard for the Protection of Records

  3210.1.1

  241—22: Standard for Safeguarding Construction, Alteration and Demolition Operations

  3301.1, 3303.2

  253—23: Standard Method of Test for Critical Radiant Flux of Floor Covering Systems Using a Radiant Heat Energy Source

  804.3.1, 804.3.2, 804.4

  260— 24 : Standard Methods of Tests and Classification System for Cigarette Ignition Resistance of Components of Upholstered Furniture

  805.1.1.1, 805.2.1.1, 805.3.1.1, 805.4.1.1

  261—23: Standard Method of Test for Determining Resistance of Mock-Up Upholstered Furniture Material Assemblies to Ignition by Smoldering Cigarettes

  805.1.1.1, 805.2.1.1, 805.3.1.1, 805.4.1.1

  265—23: Standard Methods of Fire Tests for Evaluating Room Fire Growth Contribution of Textile or Expanded Vinyl Wall Coverings on Full Height Panels and Walls

  803.5.1, 803.5.1.1

  286— 24 : Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth

  803.1, 803.1.1, 803.1.1.1, 803.3, 803.12, 803.13, 804.1.1, 804.2.4

  289—23: Standard Method of Fire Test for Individual Fuel Packages

  807.3, 807.4.1, 807.5.1.1, 808.2

  303—21: Fire Protection Standard for Marinas and Boatyards

  3603.5, 3603.6, 3604.2

• CRC § 722.3.2. High relevance — show source text

  The time assigned is not a finish rating.
  c. The actual thickness of Portland cement-sand plaster, provided that it is5/8 inch or less in thickness, shall be permitted to be included in determining the equivalent thickness
  of the masonry for use in Table 722.3.2.|

  722.2.1.4.1 Nonfire-exposed side. Where the finish of gypsum wallboard or plaster is applied to the side of the wall not exposed to fire, the contribution of the finish to the total fire-resistance rating shall be determined as follows: The thickness of the finish shall first be corrected by multiplying the actual thickness of the finish by the applicable factor determined from Table 722.2.1.4(1) based on the type of aggregate in the concrete. The corrected thickness of finish shall then be added to the actual or equivalent thickness of concrete and fire-resistance rating of the concrete and finish determined from Tables 722.2.1.1 and 722.2.1.2(1) and Figure 722.2.1.2.

  722.2.1.4.2 Fire-exposed side. Where gypsum wallboard or plaster is applied to the fire-exposed side of the wall, the contribution of the finish to the total fire-resistance rating shall be determined as follows: The time assigned to the finish as established by Table 722.2.1.4(2) shall be added to the fire-resistance rating determined from Tables 722.2.1.1 and 722.2.1.2(1) and Figure 722.2.1.2 for the concrete alone, or to the rating determined in Section 722.2.1.4.1 for the concrete and finish on the nonfire-exposed side.

  722.2.1.4.3 Nonsymmetrical assemblies. For a wall without finish on one side or having different types or thicknesses of finish on each side, the calculation procedures of Sections 722.2.1.4.1 and 722.2.1.4.2 shall be performed twice, assuming either side of the wall to be the fire-exposed side. The fire-resistance rating of the wall shall not exceed the lower of the two values.

  Exception: For an exterior wall with a fire separation distance greater than 5 feet (1524 mm) the fire shall be assumed to occur on the interior side only.

  722.2.1.4.4 Minimum concrete fire-resistance rating. Where finishes applied to one or both sides of a concrete wall contribute to the fire-resistance rating, the concrete alone shall provide not less than one-half of the total required fire-resistance rating. Additionally, the contribution to the fire resistance of the finish on the nonfire-exposed side of a load-bearing wall shall not exceed one-half the contribution of the concrete alone.

  722.2.1.4.5 Concrete finishes. Finishes on concrete walls that are assumed to contribute to the total fire-resistance rating of the wall shall comply with the installation requirements of Section 722.3.2.5.

  722.2.2 Concrete floor and roof slabs. Reinforced and prestressed floors and roofs shall comply with Section 722.2.2.1. Multicourse floors and roofs shall comply with Sections 722.2.2.2 and 722.2.2.3, respectively.

• CRC § 9.4.1 High relevance — show source text

  4. The peak heat release rate throughout the test shall not exceed 800 kW.
  5. The total smoke released throughout the test shall not exceed 1,000 m [2] .

  R302.9.4.1 Stability. Interior finish materials regulated by this chapter shall be applied or otherwise fastened in such a manner that such materials will not readily become detached where subjected to room temperatures of 200°F (93°C) for not less than 30 minutes.

  R302.9.5 High-density polyethylene (HDPE) and polypropylene (PP). Where high-density polyethylene or polypropylene is used as an interior finish material, it shall be tested in accordance with NFPA 286 and comply with the criteria in Section R302.9.4.

  R302.10 Flame spread index and smoke-developed index for insulation. Flame spread and smoke-developed index for insulation shall be in accordance with Sections R302.10.1 through R302.10.4.

  R302.10.1 Insulation. Insulating materials installed within floor-ceiling assemblies, roof-ceiling assemblies, wall assemblies, crawl spaces and attics shall comply with the requirements of this section. They shall exhibit a flame spread index not to exceed 25 and a smoke-developed index not to exceed 450 where tested in accordance with ASTM E84 or UL 723. Insulating materials, where tested in accordance with the requirements of this section, shall include facings, where used, such as vapor retarders, vapor permeable membranes and similar coverings.

  Exceptions:

  1. Where such materials are installed in concealed spaces, the flame spread index and smoke-developed index limitations do not apply to the facings, provided that the facing is installed in substantial contact with the unexposed surface of the ceiling, floor or wall finish.
  2. Cellulose fiber loose-fill insulation that is not spray applied and that complies with the requirements of Section R302.10.3 shall not be required to meet the flame spread index requirements but shall be required to meet a smokedeveloped index of not more than 450 where tested in accordance with CAN/ULC S102.2.
  3. Foam plastic insulation shall comply with Section R303.

  3-28 2025 CALIFORNIA RESIDENTIAL CODE

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  BUILDING PLANNING

  R302.10.2 Loose-fill insulation. Loose-fill insulation materials that cannot be mounted in the ASTM E84 or UL 723 apparatus without a screen or artificial supports shall comply with the flame spread and smoke-developed limits of Section R302.10.1 where tested in accordance with CAN/ULC S102.2.

  Exception: Cellulosic fiber loose-fill insulation shall not be required to be tested in accordance with CAN/ULC S102.2, provided that such insulation complies with the requirements of Sections R302.10.1 and R302.10.3.

  R302.10.3 Cellulosic fiber loose-fill insulation. Cellulosic fiber loose-fill insulation shall comply with CPSC 16 CFR, Parts 1209 and 1404. Each package of such insulating material shall be clearly labeled in accordance with CPSC 16 CFR, Parts 1209 and 1404.

  R302.10.4 Exposed attic insulation. Exposed insulation materials installed on attic floors shall have a critical radiant flux of not less than 0.12 watt per square centimeter when tested in accordance with ASTM E970.

• CRC § 12-7 High relevance — show source text

  12-7A-4A.7.5 Conditions of acceptance. Should one of the three replicates fail to meet the Condition of Acceptance, three additional tests may be run. All of the additional tests must meet the Condition of Acceptance with an effective peak heat release rate of less than or equal to 25 kW/ft [2] (269 kW/m [2] ).

  2025 CALIFORNIA REFERENCED STANDARDS CODE 49

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  50 2025 CALIFORNIA REFERENCED STANDARDS CODE

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  12-8-1 FIRE-RESISTIVE STANDARDS FOR FIRE PROTECTION

  ROOM FIRE TEST FOR WALL AND CEILING MATERIALS

  STANDARD 12-8-100 ( SEE CHAPTER 35, CALIFORNIA BUILDING CODE )

  STATE FIRE MARSHAL

  Authority: Sections 13143, 13146.1, Health and Safety Code Reference: Sections 13108, 13143, 13146.1, Health and Safety Code

  SCOPE

  Sec. 12-8-101.

  (a) Basic. This standard is intended to evaluate, under a specified fire exposure condition, the contribution to room fire growth provided by wall ceiling and/or floor materials or assemblies. This standard is not intended to evaluate the fire endurance or flamespread of material or assemblies.

  Note: See State Fire Marshal (SFM) 7-1 and Uniform Building Code (UBC) Standard 8-1.

  This standard can be used to evaluate the effectiveness of thermal barriers in restricting the contribution of combustible materials in the wall and floor assemblies to fire growth in a padded safety cell. This standard shall be used in conjunction with ASTM E603-77, “Standard Guide for Room Fire Experiments,” which covers instrumentation, safety precautions and the general effect of various parameters.

  (b) Tests and listings by approved testing agency. Test data for wall and/or ceiling materials or assemblies investigated and tested in accordance with the Standard for Safety established by Underwriters Laboratories, Inc., UL 723C, “Investigation for the Classification of Wall and Ceiling Interior Finish Materials and Assemblies Using a Room Fire Test,” will be acceptable for evaluation against this standard, provided all instrumentation data required by this standard is incorporated in the test and report.

  (c) Test simulation. The test simulates a fire in the comer of an 8-foot by 12-foot (2438 mm by 3657 mm) compartment containing a single open doorway; this can be used to evaluate the relative performance of specific wall, ceiling and floor materials or assemblies when they are used together in the same relationship within an enclosure, in addition to simulating the manner in which they will be used.

  (d) Materials considered. The test may be used for evaluating wall, ceiling and flooring finish materials and assemblies, including panels, tiles, boards, sprayed or brushed coatings, etc.

  FIRE AND SMOKE MEASUREMENTS AND PHOTOGRAPHIC RECORD

  Sec. 12-8-102.

• CRC § 5.2 High relevance — show source text

  Defined R202 Dwelling-garage wall and ceiling penetration R302.5.2 System, definition R202 Dwelling Unit Separation R302.2, R302.3 Sprinklers (see Automatic Sprinkler System)

  Electric Vehicle Charging Stations R317.6 Elevator R323.1, R323.3 Emergency Escape and Rescue Openings R319

  Additions R319.6

  Area wells R319.4 Bars, grilles, covers and screens R319.4.4

  Basements, existing R319.7 Dimensions R319.2

  Doors R319.3

  Replacement window R319.5 Under decks and porches R319.2.4 Where required R319.1 Window fall protection R321.2 Emergency Housing Appendix CJ Energy Storage Systems R328 ESS vehicle impact protection Figure R330.8.1 Maximum aggregate ratings of ESS Table R330.5 Protection from impact R330.8 Toxic and highly toxic gas R330.12 Entry 1.8.5, R104.4 Existing Buildings Appendix BO Administrative R101.2, R102.6, R105.1, R105.8, R106.2, R113.1, R113.2 Basements R313.1.2, R319.7 Carbon monoxide alarms R311.2.2, R311.5, R311.6 Flood R104.3.1

  Smoke alarms R310.2.2, R310.6 Stairways R318.7.9 Windows, replacement R319.5 Exterior Balconies and elevated walking surfaces R106.1.6

  Covering R703 Insulation finish systems R703.9 Lath R703.7.1

  Plaster R703.7 Exterior Insulation and Finish Systems (EIFS) 703.9

  Exterior Wall

  Construction R302.1

  Fire-resistance rating R302.1

  Factory Built Chimneys R1005 Fireplace stoves R1005.3 Fireplaces R1004 Fastening Table R602.3(1) Fees, Permit R108 Finishes Flame spread and smoke density R302.9 For ceilings R805 Interior R302.9, R311, R702 Fire Sprinkler System (see Automatic Sprinkler System) Ceiling configurations R309.3.4.1.1, R309.3.4.1.2, R309.3.4.1.3 Flow rate R309.3.4.1 Fireblocking Barrier between stories R302.11,

  R602.8 Chimney R1003.19 Fireplace R1001.12 Fireplaces Chapter 10 Clearance R1001.11 Corbeling R1001.8 Factory-built R1004 Fireblocking R1001.12 Walls R1001.5

  Fire-Resistant Construction R302 Draftstopping R302.2 Dwelling-garage fire separation R302.6 Dwelling-garage opening and penetration R302.5 Exterior walls R302.1 Fireblocking R302.11 Floors R302.13

  Foam plastics R302.8 Insulation R302.10, R302.14 Penetrations R302.4

• CRC § 3-27 High relevance — show source text

  2025 CALIFORNIA RESIDENTIAL CODE 3-27

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  BUILDING PLANNING

  TABLE R302.6—DWELLING UNIT GARAGE AND/OR CARPORT SEPARATION	Col2
  ** SEPARATION**	** MATERIAL**
  From the dwelling unit and attics	Not less than1/2-inch gypsum board or equivalent applied to the garage side
  From portions of the dwelling unit above the garage_or carport_	Not less than5/8-inch Type X gypsum board or equivalent
  Structure supporting floor/ceiling assemblies used for separation required by this section	Not less than1/2-inch gypsum board or equivalent
  Garages located less than 3 feet from a dwelling unit on the same lot	Not less than1/2-inch gypsum board or equivalent applied to the interior side of exterior walls that are within this area
  For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.	For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.

  R302.7 Under-stair protection. Enclosed space under stairs that is accessed by a door or access panel shall have walls, under-stair surface and any soffits protected on the enclosed side with [1] / 2 -inch (12.7 mm) gypsum board.

  R302.8 Foam plastics. For requirements for foam plastics, see Section R303.

  R302.8.1 Interior finish. Foam plastics used as interior finishes shall comply with Section R303.5.10.

  R302.9 Flame spread index and smoke-developed index for wall and ceiling finishes. Flame spread and smoke-developed indices for wall and ceiling finishes shall be in accordance with Sections R302.9.1 through R302.9.4.

  R302.9.1 Flame spread index. Wall and ceiling finishes shall have a flame spread index of not greater than 200.

  Exception: Flame spread index requirements for finishes shall not apply to trim defined as picture molds, chair rails, baseboards and handrails; to doors and windows or their frames; or to materials that are less than [1] / 28 inch (0.91 mm) in thickness cemented to the surface of walls or ceilings if these materials exhibit flame spread index values not greater than those of paper of this thickness cemented to a noncombustible backing.

  R302.9.2 Smoke-developed index. Wall and ceiling finishes shall have a smoke-developed index of not greater than 450.

  R302.9.3 Testing. Tests shall be made in accordance with ASTM E84 or UL 723.

  R302.9.4 Alternative test method. As an alternative to having a flame spread index of not greater than 200 and a smoke-developed index of not greater than 450 where tested in accordance with ASTM E84 or UL 723, wall and ceiling finishes shall be permitted to be tested in accordance with NFPA 286. Materials tested in accordance with NFPA 286 shall meet the following criteria:

  The interior finish shall comply with the following:

  1. During the 40 kW exposure, flames shall not spread to the ceiling.
  2. The flame shall not spread to the outer extremity of the sample on any wall or ceiling.
  3. Flashover, as defined in NFPA 286, shall not occur.
• CRC § 5.5 High relevance — show source text

  [BSC-CG] See California Green Building Standards Code, Chapter 5, Division 5.5 for additional finish material pollutant control requirements.

  SECTION 802—GENERAL

  802.1 Interior wall and ceiling finish. The provisions of Section 803 shall limit the allowable fire performance and smoke development of interior wall and ceiling finish materials based on occupancy classification.

  802.2 Interior floor finish. The provisions of Section 804 shall limit the allowable fire performance of interior floor finish materials based on occupancy classification.

  [F] 802.3 Decorative materials and trim. Decorative materials and trim shall be restricted by combustibility, fire performance or flame propagation performance criteria in accordance with Section 806.

  802.4 Applicability. For buildings in flood hazard areas as established in Section 1612.3, interior finishes, trim and decorative materials below the elevation required by Section 1612 shall be flood-damage-resistant materials.

  802.5 Application. Combustible materials shall be permitted to be used as finish for walls, ceilings, floors and other interior surfaces of buildings.

  802.6 Windows. Show windows in the exterior walls of the first story above grade plane shall be permitted to be of wood or of unprotected metal framing.

  802.7 Foam plastics. Foam plastics shall not be used as interior finish except as provided in Section 803.4. Foam plastics shall not be used as interior trim except as provided in Section 806.6.1 or 2604.2. This section shall apply both to exposed foam plastics and to foam plastics used in conjunction with a textile or vinyl facing or cover.

  SECTION 803—WALL AND CEILING FINISHES

  803.1 General. Interior wall and ceiling finish materials shall be classified for fire performance and smoke development in accordance with Section 803.1.1 or 803.1.2, except as shown in Sections 803.1.3 through 803.15. Materials tested in accordance with Section 803.1.1 shall not be required to be tested in accordance with Section 803.1.2.

  803.1.1 Interior wall and ceiling finish materials tested in accordance with NFPA 286. Interior wall and ceiling finish materials shall be classified in accordance with NFPA 286 and comply with Section 803.1.1.1. Materials complying with Section 803.1.1.1 shall be considered to also comply with the requirements of Class A.

  803.1.1.1 Acceptance criteria for NFPA 286. The interior finish shall comply with the following:

  1. During the 40 kW exposure, flames shall not spread to the ceiling.

  2. The flame shall not spread to the outer extremity of the sample on any wall or ceiling.

  3. Flashover, as defined in NFPA 286, shall not occur.

  4. The peak heat release rate throughout the test shall not exceed 800 kW.

  5. The total smoke released throughout the test shall not exceed 1,000 m [2] .

  803.1.2 Interior wall and ceiling finish materials tested in accordance with ASTM E84 or UL 723. Interior wall and ceiling finish materials shall be classified in accordance with ASTM E84 or UL 723. Such interior finish materials shall be grouped in the following classes in accordance with their flame spread and smoke-developed indices.

  Class A = Flame spread index 0–25; smoke-developed index 0–450.

  Class B = Flame spread index 26–75; smoke developed index 0–450.

  Class C = Flame spread index 76–200; smoke-developed index 0–450.

• CRC § 803.13 High relevance — show source text

  1||X||||||||||||||||||||||| |Table 803.13|||X|||||||||||||||||||||| |804.1|||X|||||||||||||||||||||| |804.4|||X|||||||||||||||||||||| |804.4.1|||X|||||||||||||||||||||| |804.4.2|||X|||||||||||||||||||||| |804.4.3|||X|||||||||||||||||||||| |806.4|||X|||||||||||||||||||||| |806.6|||X||||||||||||||||||||||

  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.

  2025 CALIFORNIA BUILDING CODE 8-1

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  8-2 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  8 INTERIOR FINISHES

  User notes:

  About this chapter: Chapter 8 contains the performance requirements for controlling fire growth and smoke propagation within buildings by restricting interior finish and decorative materials. The provisions of this chapter require materials used as interior finishes and decorations to meet certain flame spread index or flame propagation criteria and smoke development criteria based on the relative fire hazard associated with the occupancy. The performance of the material is evaluated based on test standards.

  SECTION 801—SCOPE

  801.1 Scope. The provisions of this chapter shall govern the use of materials used as interior finishes, trim and decorative materials.

  [BSC-CG] See California Green Building Standards Code, Chapter 5, Division 5.5 for additional finish material pollutant control requirements.

  SECTION 802—GENERAL

  802.1 Interior wall and ceiling finish. The provisions of Section 803 shall limit the allowable fire performance and smoke development of interior wall and ceiling finish materials based on occupancy classification.

  802.2 Interior floor finish. The provisions of Section 804 shall limit the allowable fire performance of interior floor finish materials based on occupancy classification.

  [F] 802.3 Decorative materials and trim. Decorative materials and trim shall be restricted by combustibility, fire performance or flame propagation performance criteria in accordance with Section 806.

  802.4 Applicability. For buildings in flood hazard areas as established in Section 1612.3, interior finishes, trim and decorative materials below the elevation required by Section 1612 shall be flood-damage-resistant materials.

  802.5 Application. Combustible materials shall be permitted to be used as finish for walls, ceilings, floors and other interior surfaces of buildings.

  802.6 Windows. Show windows in the exterior walls of the first story above grade plane shall be permitted to be of wood or of unprotected metal framing.

  802.7 Foam plastics. Foam plastics shall not be used as interior finish except as provided in Section 803.4. Foam plastics shall not be used as interior trim except as provided in Section 806.6.1 or 2604.2. This section shall apply both to exposed foam plastics and to foam plastics used in conjunction with a textile or vinyl facing or cover.

  SECTION 803—WALL AND CEILING FINISHES

• CRC § 2604.1 High relevance — show source text

  SECTION 2604—INTERIOR FINISH AND TRIM

  2604.1 General. Plastic materials installed as interior finish or trim shall comply with Chapter 8. Foam plastics shall only be installed as interior finish where approved in accordance with the special provisions of Section 2603.9. Foam plastics that are used as interior finish shall meet the flame spread and smoke-developed index requirements for interior finish in accordance with Chapter 8. Foam plastics installed as interior trim shall comply with Section 2604.2. 2604.1.1 Plenums. Foam plastics installed in plenums as interior wall or ceiling finish shall comply with Section 2603.7. Foam plastics installed in plenums as interior trim shall comply with Sections 2604.2 and 2603.7.

  [F] 2604.2 Interior trim. Foam plastic used as interior trim shall comply with Sections 2604.2.1 through 2604.2.4.

  [F] 2604.2.1 Density. The minimum density of the interior trim shall be 20 pcf (320 kg/m [3] ).

  [F] 2604.2.2 Thickness. The maximum thickness of the interior trim shall be [1] / 2 inch (12.7 mm) and the maximum width shall be 8 inches (204 mm).

  [F] 2604.2.3 Area limitation. The interior trim shall not constitute more than 10 percent of the specific wall or ceiling areas to which it is attached.

  [F] 2604.2.4 Flame spread. The flame spread index shall not exceed 75 where tested in accordance with ASTM E84 or UL 723. The smoke-developed index shall not be limited.

  Exception: Where the interior trim material has been tested as an interior finish in accordance with NFPA 286 and complies with the acceptance criteria in Section 803.1.1.1, it shall not be required to be tested for flame spread index in accordance with ASTM E84 or UL 723.

  2025 CALIFORNIA BUILDING CODE 26-7

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  PLASTIC

  SECTION 2605—PLASTIC VENEER

  2605.1 Interior use. Where used within a building, plastic veneer shall comply with the interior finish requirements of Chapter 8.

  2605.2 Exterior use. Exterior plastic veneer, other than plastic siding, shall be permitted to be installed on the exterior walls of buildings of any type of construction in accordance with all of the following requirements:

  1. Plastic veneer shall comply with Section 2606.4.
  2. Plastic veneer shall not be attached to any exterior wall to a height greater than 50 feet (15 240 mm) above grade.
  3. Sections of plastic veneer shall not exceed 300 square feet (27.9 m [2] ) in area and shall be separated by not less than 4 feet (1219 mm) vertically.

  Exception: The area and separation requirements and the smoke-density limitation are not applicable to plastic veneer applied to buildings constructed of Type VB construction, provided that the walls are not required to have a fire-resistance rating.

  2605.3 Plastic siding. Plastic siding shall comply with the requirements of Sections 1403 and 1404.

  SECTION 2606—LIGHT-TRANSMITTING PLASTICS

• CRC § 803.1.1 High relevance — show source text

  803.1.1 Interior wall and ceiling finish materials tested in accordance with NFPA 286. Interior wall and ceiling finish materials shall be classified in accordance with NFPA 286 and comply with Section 803.1.1.1. Materials complying with Section 803.1.1.1 shall be considered to also comply with the requirements of Class A.

  803.1.1.1 Acceptance criteria for NFPA 286. The interior finish shall comply with the following:

  1. During the 40 kW exposure, flames shall not spread to the ceiling.

  2. The flame shall not spread to the outer extremity of the sample on any wall or ceiling.

  3. Flashover, as defined in NFPA 286, shall not occur.

  4. The peak heat release rate throughout the test shall not exceed 800 kW.

  5. The total smoke released throughout the test shall not exceed 1,000 m [2] .

  803.1.2 Interior wall and ceiling finish materials tested in accordance with ASTM E84 or UL 723. Interior wall and ceiling finish materials shall be classified in accordance with ASTM E84 or UL 723. Such interior finish materials shall be grouped in the following classes in accordance with their flame spread and smoke-developed indices.

  Class A = Flame spread index 0–25; smoke-developed index 0–450.

  Class B = Flame spread index 26–75; smoke developed index 0–450.

  Class C = Flame spread index 76–200; smoke-developed index 0–450.

  Exception: Materials tested in accordance with Section 803.1.1 and as indicated in Sections 803.1.3 through 803.13.

  803.1.3 Interior wall and ceiling finish materials with different requirements. The materials indicated in Sections 803.2 through 803.13 shall be tested as indicated in the corresponding sections.

  2025 CALIFORNIA BUILDING CODE 8-3

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  INTERIOR FINISHES

  803.2 Thickness exemption. Materials having a thickness less than 0.036 inch (0.9 mm) applied directly to the surface of walls or ceilings shall not be required to be tested.

  803.3 Heavy timber exemption. Exposed portions of building elements complying with the requirements for buildings of heavy timber construction in Section 602.4 or Section 2304.11 shall not be subject to interior finish requirements except in interior exit stairways, interior exit ramps, and exit passageways.

  803.4 Foam plastics. Foam plastics shall not be used as interior finish except as provided in Section 2603.9. This section shall apply both to exposed foam plastics and to foam plastics used in conjunction with a textile or vinyl facing or cover.

  803.5 Textile wall coverings. Where used as interior wall finish materials, textile wall coverings, including materials having woven or nonwoven, napped, tufted, looped or similar surface and carpet and similar textile materials, shall be tested in the manner intended for use, using the product-mounting system, including adhesive, and shall comply with the requirements of one of the following: Section 803.1.1, 803.5.1 or 803.5.2.

• CRC § 26-6 High relevance — show source text

  Exceptions:

  1. Buildings where the structural members of walls, floors, ceilings and roofs are entirely of noncombustible materials or preservative-treated wood.

  26-6 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  PLASTIC

  2. An approved method of protecting the foam plastic and structure from subterranean termite damage is provided.

  3. On the interior side of basement walls.

  FIGURE 2603.8—TERMITE INFESTATION PROBABILITY MAP

  2603.9 Special approval. Foam plastic shall not be required to comply with the requirements of Section 2603.4 or those of Section 2603.6 where specifically approved based on one of the following large-scale tests:

  1. NFPA 286 using the acceptance criteria of Section 803.1.1.1.

  2. FM 4880.

  3. UL 1040.

  4. UL 1715.

  Such testing shall be performed on the finished manufactured foam plastic assembly in the maximum thickness intended for use. Foam plastics that are used as interior finish on the basis of these tests shall also conform to the flame spread and smoke-developed requirements of Chapter 8. Assemblies tested shall include seams, joints and other typical details used in the installation of the assembly and shall be tested in the manner intended for use.

  [BS] 2603.10 Wind resistance. Foam plastic insulation complying with ASTM C578 and ASTM C1289 and used as exterior wall sheathing on framed wall assemblies shall comply with ANSI/SBCA FS 100 for wind pressure resistance.

  SECTION 2604—INTERIOR FINISH AND TRIM

  2604.1 General. Plastic materials installed as interior finish or trim shall comply with Chapter 8. Foam plastics shall only be installed as interior finish where approved in accordance with the special provisions of Section 2603.9. Foam plastics that are used as interior finish shall meet the flame spread and smoke-developed index requirements for interior finish in accordance with Chapter 8. Foam plastics installed as interior trim shall comply with Section 2604.2. 2604.1.1 Plenums. Foam plastics installed in plenums as interior wall or ceiling finish shall comply with Section 2603.7. Foam plastics installed in plenums as interior trim shall comply with Sections 2604.2 and 2603.7.

  [F] 2604.2 Interior trim. Foam plastic used as interior trim shall comply with Sections 2604.2.1 through 2604.2.4.

  [F] 2604.2.1 Density. The minimum density of the interior trim shall be 20 pcf (320 kg/m [3] ).

  [F] 2604.2.2 Thickness. The maximum thickness of the interior trim shall be [1] / 2 inch (12.7 mm) and the maximum width shall be 8 inches (204 mm).

  [F] 2604.2.3 Area limitation. The interior trim shall not constitute more than 10 percent of the specific wall or ceiling areas to which it is attached.

  [F] 2604.2.4 Flame spread. The flame spread index shall not exceed 75 where tested in accordance with ASTM E84 or UL 723. The smoke-developed index shall not be limited.

• CRC § 2603.4. Medium relevance — show source text

  Exceptions:

  1. Foam plastic in plenums used as interior wall or ceiling finish, or interior trim, shall exhibit a flame spread index of 75 or less and a smoke-developed index of 450 or less when tested in accordance with ASTM E84 or UL 723 at the maximum thickness and density intended for use, where it is separated from the airflow in the plenum by a thermal barrier complying with Section 2603.4.
  2. Foam plastic in plenums used as interior wall or ceiling finish, or interior trim, shall exhibit a flame spread index of 75 or less and a smoke-developed index of 450 or less when tested in accordance with ASTM E84 or UL 723 at the maximum thickness and density intended for use, where it is separated from the airflow in the plenum by corrosion-resistant steel having a base metal thickness of not less than 0.0160 inch (0.4 mm).
  3. Foam plastic in plenums used as interior wall or ceiling finish, or interior trim, shall exhibit a flame spread index of 75 or less and a smoke-developed index of 450 or less when tested in accordance with ASTM E84 or UL 723 at the maximum thickness and density intended for use, where it is separated from the airflow in the plenum by not less than a 1-inch (25 mm) thickness of masonry or concrete.

  2603.8 Protection against termites. In areas where the probability of termite infestation is very heavy in accordance with Figure 2603.8, extruded and expanded polystyrene, polyisocyanurate and other foam plastics shall not be installed on the exterior face or under interior or exterior foundation walls or slab foundations located below grade. The clearance between foam plastics installed above grade and exposed earth shall be not less than 6 inches (152 mm).

  Exceptions:

  1. Buildings where the structural members of walls, floors, ceilings and roofs are entirely of noncombustible materials or preservative-treated wood.

  26-6 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  PLASTIC

  2. An approved method of protecting the foam plastic and structure from subterranean termite damage is provided.

  3. On the interior side of basement walls.

  FIGURE 2603.8—TERMITE INFESTATION PROBABILITY MAP

  2603.9 Special approval. Foam plastic shall not be required to comply with the requirements of Section 2603.4 or those of Section 2603.6 where specifically approved based on one of the following large-scale tests:

  1. NFPA 286 using the acceptance criteria of Section 803.1.1.1.

  2. FM 4880.

  3. UL 1040.

  4. UL 1715.

  Such testing shall be performed on the finished manufactured foam plastic assembly in the maximum thickness intended for use. Foam plastics that are used as interior finish on the basis of these tests shall also conform to the flame spread and smoke-developed requirements of Chapter 8. Assemblies tested shall include seams, joints and other typical details used in the installation of the assembly and shall be tested in the manner intended for use.

  [BS] 2603.10 Wind resistance. Foam plastic insulation complying with ASTM C578 and ASTM C1289 and used as exterior wall sheathing on framed wall assemblies shall comply with ANSI/SBCA FS 100 for wind pressure resistance.

  SECTION 2604—INTERIOR FINISH AND TRIM

• CRC § 2-5 Medium relevance — show source text

  Part II—Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

  CHAPTER 2 DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

  R201 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

  R202 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

  Part III—Building Planning and Construction . . . . . . . . . . . .3-5

  CHAPTER 3 BUILDING PLANNING . . . . . . . . . . . . . . . . . . . . .3-5

  R300 Site Drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

  R301 Design Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

  R302 Fire-Resistant Construction . . . . . . . . . . . . . . . . . . . . 3-23

  R303 Foam Plastic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

  R304 Protection of Wood and Wood-Based Products

  Against Decay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

  R305 Protection Against Subterranean Termites. . . . . . . 3-35

  R306 Flood-Resistant Construction. . . . . . . . . . . . . . . . . . . 3-36

  R307 Storm Shelters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

  R308 Site Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

  R309 Automatic Sprinkler Systems . . . . . . . . . . . . . . . . . . . 3-41

  R310 Smoke Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54

  R311 Carbon Monoxide Alarms. . . . . . . . . . . . . . . . . . . . . . . 3-58

  R312 Minimum Room Areas . . . . . . . . . . . . . . . . . . . . . . . . . 3-59

  R313 Ceiling Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59

• CRC § 7.1 Medium relevance — show source text

  Covering R703 Insulation finish systems R703.9 Lath R703.7.1

  Plaster R703.7 Exterior Insulation and Finish Systems (EIFS) 703.9

  Exterior Wall

  Construction R302.1

  Fire-resistance rating R302.1

  Factory Built Chimneys R1005 Fireplace stoves R1005.3 Fireplaces R1004 Fastening Table R602.3(1) Fees, Permit R108 Finishes Flame spread and smoke density R302.9 For ceilings R805 Interior R302.9, R311, R702 Fire Sprinkler System (see Automatic Sprinkler System) Ceiling configurations R309.3.4.1.1, R309.3.4.1.2, R309.3.4.1.3 Flow rate R309.3.4.1 Fireblocking Barrier between stories R302.11,

  R602.8 Chimney R1003.19 Fireplace R1001.12 Fireplaces Chapter 10 Clearance R1001.11 Corbeling R1001.8 Factory-built R1004 Fireblocking R1001.12 Walls R1001.5

  Fire-Resistant Construction R302 Draftstopping R302.2 Dwelling-garage fire separation R302.6 Dwelling-garage opening and penetration R302.5 Exterior walls R302.1 Fireblocking R302.11 Floors R302.13

  Foam plastics R302.8 Insulation R302.10, R302.14 Penetrations R302.4

  Townhouse separation R302.2 Two-family dwellings R302.3 Under-stair protection R302.7 Wall and ceiling finishes R302.9 Fire-Separation Distance Exterior walls and wall projections R302.1 Ground-mounted photovoltaic systems R329.7, R329.8 Fixtures

  Clearance R327.1

  Flood protection R306.1.6 Plumbing fixture, general R326, R327 Flame Spread Index R302.10, R302.9 Flashing R703.4, R703.8.5, R903.2, R905 Flood Protection Plan Areas protected by the facilities of Central Valley Appendix CK Flood-Resistant Construction

  General and structural R301.2.4, R306 Floors

  Bathtub and shower R327.2 Concrete (on ground) R506 Loads R301, R501.2 Steel framing R505 Treated wood (on ground) R504

  Wood framing R502 Flue

  Area R1003.14, R1003.15 Lining R1003.11, R1003.12 Multiple R1003.13 Foam Plastics R303 Footings R403 Foundations Chapter 4 Cripple walls R602.10.9, R602.11.2, R602.9

  Frost protection R403.1.4.1 Inspection R109.1.1 Walls R404

  Frame

• CRC § 15.9 Medium relevance — show source text

  R302.15.9 Interior applications. Interior fire-retardant-treated wood shall have a moisture content of not over 28 percent when tested in accordance with ASTM D3201 procedures at 92-percent relative humidity. Interior fire-retardant-treated wood shall be tested in accordance with Section R302.15.6 or R302.15.7. Interior fire-retardant-treated wood designated as Type A shall be tested in accordance with the provisions of this section.

  R302.15.10 Moisture content. Fire-retardant-treated wood shall be dried to a moisture content of 19 percent or less for fireretardant-treated lumber and 15 percent or less for fire-retardant-treated wood structural panels before use. For wood kiln dried after treatment (KDAT), the kiln temperatures shall not exceed those used in kiln drying the fire-retardant-treated wood structural panels and fire-retardant-treated lumber submitted for the tests described in Section R302.15.6 for fire-retardant-treated wood structural panels and Section R302.15.7 for fire-retardant-treated lumber.

  SECTION R303—FOAM PLASTIC

  R303.1 General. The provisions of this section shall govern the materials, design, application, construction and installation of foam plastic materials.

  R303.1.1 Spray-applied foam plastic. Single- and multiple-component spray-applied foam plastic insulation shall comply with the provisions of Section R303 and ICC 1100.

  R303.1.2 Insulating sheathing. Foam plastic materials used as insulating sheathing shall comply with the provisions of Section R303 and the material standards in Table R303.1.2.

  TABLE R303.1.2—MATERIAL STANDARDS FOR FOAM PLASTIC INSULATING SHEATHING	Col2
  FOAM PLASTIC INSULATING SHEATHING	MATERIAL STANDARDS
  Expanded Polystyrene (EPS)	ASTM C578
  Extruded Polystyrene (XPS)	ASTM C578
  Polyisocyanurate	ASTM C1289

  R303.2 Labeling and identification. Packages and containers of foam plastic insulation and foam plastic insulation components delivered to the job site shall bear the label of an approved agency showing the manufacturer’s name, the product listing, product identification and information sufficient to determine that the end use will comply with the requirements.

  R303.2.1 Labeling of polystyrene foam insulation without flame retardants. In addition to the requirements of Section 2603.2 of the California Building Code, polystyrene foam insulation boards manufactured with no flame retardants added shall be labeled in accordance with this section.

  1. Each board shall be labeled on each face every 8 square feet in red [1] / 2 -inch text with the following information:

  WARNING – FIRE HAZARD This product is required to be installed below a minimum 3.5-inch thick concrete slab on grade

  NOT FOR VERTICAL OR

  ABOVE GRADE APPLICATIONS This product contains NO flame retardants. Not tested for flame spread or smoke development requirements of the model building codes. 2. Each package shall be labeled on at least two sides in red [1] / 2 -inch text with the following information:

  WARNING – COMBUSTIBLE MATERIAL Keep away from ignition sources. Maintain code-required separation between product storage and structures under construction (minimum 30 feet).

• CRC § 1.3.3.3 Medium relevance — show source text

  R404.1.3.3.3 Maximum aggregate size. The nominal maximum size of coarse aggregate shall not exceed one-fifth the narrowest distance between sides of forms, or three-fourths the clear spacing between reinforcing bars or between a bar and the side of the form.

  Exception: Where approved, these limitations shall not apply where removable forms are used and workability and methods of consolidation permit concrete to be placed without honeycombs or voids.

  R404.1.3.3.4 Proportioning and slump of concrete. Proportions of materials for concrete shall be established to provide workability and consistency to permit concrete to be worked readily into forms and around reinforcement under conditions of placement to be employed, without segregation or excessive bleeding. Slump of concrete placed in removable forms shall not exceed 6 inches (152 mm).

  Exception: Where approved, the slump is permitted to exceed 6 inches (152 mm) for concrete mixtures that are resistant to segregation, and are in accordance with the form manufacturer’s recommendations.

  Slump of concrete placed in stay-in-place forms shall exceed 6 inches (152 mm). Slump of concrete shall be determined in accordance with ASTM C143.

  R404.1.3.3.5 Consolidation of concrete. Concrete shall be consolidated by suitable means during placement and shall be worked around embedded items and reinforcement and into corners of forms. Where stay-in-place forms are used, concrete shall be consolidated by internal vibration.

  Exception: Where approved for concrete to be placed in stay-in-place forms, self-consolidating concrete mixtures with slumps equal to or greater than 8 inches (203 mm) that are specifically designed for placement without internal vibration need not be internally vibrated.

  R404.1.3.3.6 Form materials and form ties. Forms shall be made of wood, steel, aluminum, plastic, a composite of cement and foam insulation, a composite of cement and wood chips, or other approved material suitable for supporting and containing concrete. Forms shall be accurately positioned and secured before placing concrete and shall provide sufficient strength to contain concrete during the concrete placement operation.

  Form ties shall be steel, solid plastic, foam plastic, a composite of cement and wood chips, a composite of cement and foam plastic, or other suitable material capable of resisting the forces created by fluid pressure of fresh concrete.

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  FOUNDATIONS

  R404.1.3.3.6.1 Stay-in-place forms. Stay-in-place concrete forms shall comply with this section.

  1. Surface burning characteristics. The flame-spread index and smoke-developed index of forming material, other than foam plastic, left exposed on the interior shall comply with Section R302. The surface burning characteristics of foam plastic used in insulating concrete forms shall comply with Section R303.3.
  2. Interior covering. Stay-in-place forms constructed of rigid foam plastic shall be protected on the interior of the building as required by Section R303. Where gypsum board is used to protect the foam plastic, it shall be installed with a mechanical fastening system. Use of adhesives in addition to mechanical fasteners is permitted.
  3. Exterior wall covering. Stay-in-place forms constructed of rigid foam plastics shall be protected from sunlight and physical damage by the application of an approved exterior wall covering complying with this code. Exterior surfaces of other stay-in-place forming systems shall be protected in accordance with this code.
  4. Termite protection.
• CRC § 8.4 Medium relevance — show source text

  Defined R202

  Inlet To masonry chimneys R1003.16 Inspection On-site 1.8.4, R109.1 Insulation

  Above-deck R906 Flame spread R302.10 Foam plastic R303 Interior

  Lath R702.2.3

  Other finishes R702.5

  Plaster R702.2 Wall covering Chapter 7 Intermodal Shipping Container R301.1.4

  Joist

  Bearing R502.6, R606.6.3.1

  Kitchen Height and area R312, R313 Sinks R326

  Ventilation R325.1.2

  Labeling Garage doors R609.4.1 Ladders

  Ships ladders R318.7.13 Sleeping lofts R315.5.3 Landings (see also Stairways, Ramps and Doors) R318.3, R318.3.1, R318.3.2, R318.7.6, R318.8.2, R321, R324.4.7, R325.6, R325.7 Lateral Support R502.7, R606.6.4, R607.5.2 Lath

  Exterior R703.7.1

  Interior R702.2.3

  Lavatories R326.1

  Clearances R327 Liability R104.8 Light R325 Lighting Adjoining rooms R325.1.3 Bathrooms R325.2

  Exterior stairs R325.7

  Habitable rooms R325

  Interior stairs R325.6 Limited-Density Owner-Built Rural Dwellings Alternative provisions R301.1.1.1 Definition R202 Lining Flue R1003.11, R1003.12 Lintel R606.10, R608.8, R703.8.3, R1001.7 Liquid Fuel R202 Live Loads (see Loads)

  Live/work Unit R101.2 Accessibility R322.2 Loads Chimneys R1003.8 Components and Cladding (see Wind Loads) Figure R301.2.1, Table 301.2.1(1), Table 301.2.1(2) Dead load R301.4 Flood (see Flood-Resistant Construction) R301.2.4 Live load R301.5, R301.7 Roof R301.6 Seismic risk map (see Seismic Loads) Figure R301.2.2.1(1), Figure R301.2.2.1(2), Figure R301.2.2.1(3), Figure R301.2.2.1(4), Figure R301.2.2.1(5), Figure R301.2.2.1(6), Figure R301.2.2.1(7) Snow load map (see Snow Loads) Figure 301.2(3) Wind speed map (see Wind Loads) Figure R301.2(2) Lodging House R101.2, R322.1 Lumber

  Grade R502.1.1, R602.1.1, R802.1.1

• CRC § 15.6 Medium relevance — show source text

  R302.15.6 Fire-retardant-treated wood structural panels. The effect of treatment and the method of redrying after treatment, and exposure to high temperatures and high humidities on the flexure properties of fire-retardant-treated softwood plywood shall be determined in accordance with ASTM D5516. The test data developed by ASTM D5516 shall be used to develop adjustment factors, maximum loads and spans, or both for untreated plywood design values in accordance with ASTM D6305. Each manufacturer shall publish the allowable maximum loads and spans for service as floor and roof sheathing for their treatment.

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  BUILDING PLANNING

  R302.15.7 Fire-retardant-treated lumber. For each species of wood treated, the effect of the treatment and the method of redrying after treatment and exposure to high temperatures and high humidities on the allowable design properties of fire-retardant-treated lumber shall be determined in accordance with ASTM D5664. The test data developed by ASTM D5664 shall be used to develop modification factors for use at or near room temperature and at elevated temperatures and humidity in accordance with ASTM D6841. Each manufacturer shall publish the modification factors for service at temperatures of not less than 80°F (27°C) and for roof framing. The roof framing modification factors shall take into consideration the climatological location.

  R302.15.8 Exposure to weather. Where fire-retardant-treated wood is exposed to weather or damp or wet locations, it shall be identified as “Exterior” to indicate there is not an increase in the listed flame spread index as defined in Section R302.15 when subjected to ASTM D2898.

  R302.15.9 Interior applications. Interior fire-retardant-treated wood shall have a moisture content of not over 28 percent when tested in accordance with ASTM D3201 procedures at 92-percent relative humidity. Interior fire-retardant-treated wood shall be tested in accordance with Section R302.15.6 or R302.15.7. Interior fire-retardant-treated wood designated as Type A shall be tested in accordance with the provisions of this section.

  R302.15.10 Moisture content. Fire-retardant-treated wood shall be dried to a moisture content of 19 percent or less for fireretardant-treated lumber and 15 percent or less for fire-retardant-treated wood structural panels before use. For wood kiln dried after treatment (KDAT), the kiln temperatures shall not exceed those used in kiln drying the fire-retardant-treated wood structural panels and fire-retardant-treated lumber submitted for the tests described in Section R302.15.6 for fire-retardant-treated wood structural panels and Section R302.15.7 for fire-retardant-treated lumber.

  SECTION R303—FOAM PLASTIC

  R303.1 General. The provisions of this section shall govern the materials, design, application, construction and installation of foam plastic materials.

  R303.1.1 Spray-applied foam plastic. Single- and multiple-component spray-applied foam plastic insulation shall comply with the provisions of Section R303 and ICC 1100.

  R303.1.2 Insulating sheathing. Foam plastic materials used as insulating sheathing shall comply with the provisions of Section R303 and the material standards in Table R303.1.2.

• CRC § 4-37 Medium relevance — show source text

  Form ties shall be steel, solid plastic, foam plastic, a composite of cement and wood chips, a composite of cement and foam plastic, or other suitable material capable of resisting the forces created by fluid pressure of fresh concrete.

  2025 CALIFORNIA RESIDENTIAL CODE 4-37

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  FOUNDATIONS

  R404.1.3.3.6.1 Stay-in-place forms. Stay-in-place concrete forms shall comply with this section.

  1. Surface burning characteristics. The flame-spread index and smoke-developed index of forming material, other than foam plastic, left exposed on the interior shall comply with Section R302. The surface burning characteristics of foam plastic used in insulating concrete forms shall comply with Section R303.3.

  2. Interior covering. Stay-in-place forms constructed of rigid foam plastic shall be protected on the interior of the building as required by Section R303. Where gypsum board is used to protect the foam plastic, it shall be installed with a mechanical fastening system. Use of adhesives in addition to mechanical fasteners is permitted.

  3. Exterior wall covering. Stay-in-place forms constructed of rigid foam plastics shall be protected from sunlight and physical damage by the application of an approved exterior wall covering complying with this code. Exterior surfaces of other stay-in-place forming systems shall be protected in accordance with this code.

  4. Termite protection. In areas where the probability of termite infestation is “very heavy” as indicated by Table R301.2 or Figure R301.2.1, foam plastic insulation shall be permitted below grade on foundation walls in accordance with Section R305.4.

  5. Flat ICF wall system forms shall conform to ASTM E2634.

  R404.1.3.3.7 Reinforcement.

  R404.1.3.3.7.1 Steel reinforcement. Steel reinforcement shall comply with the requirements of ASTM A615, A706 or A996M. ASTM A996M bars produced from rail steel shall be Type R. In buildings assigned to Seismic Design Category A, B or C, the minimum yield strength of reinforcing steel shall be 40,000 psi (Grade 40) (276 MPa). In buildings assigned to Seismic Design Category D 0, D 1 or D 2, the minimum yield strength shall be 60,000 psi (Grade 60) (414 MPa).

  R404.1.3.3.7.2 Location of reinforcement in wall. The center of vertical reinforcement in basement walls determined from Tables R404.1.3.2(2) through R404.1.3.2(7) shall be located at the centerline of the wall. Vertical reinforcement in basement walls determined from Table R404.1.3.2(8) shall be located to provide a maximum cover of 1 [1] / 4 inches (32 mm) measured from the inside face of the wall. Regardless of the table used to determine vertical wall reinforcement, the center of the steel shall not vary from the specified location by more than the greater of 10 percent of the wall thickness and [3] / 8 inch (10 mm). Horizontal and vertical reinforcement shall be located in foundation walls to provide the minimum cover required by Section R404.1.3.3.7.4. **R404.1.3.3.7.3 Wall openings.

• CRC § 5.2.3.4 Medium relevance — show source text

  5.2.3.4_|||X||||X|||||||||||||||||| |907.5.2.4|||X|||||||||||||||||||||| |907.5.2.5|||X|||||||||||||||||||||| |907.6|||X|||||||||||||||||||||| |907.6.1||||X|X|||||||||||||||||||| |907.6.1.1|||X|||||||||||||||||||||| |907.6.4|||X|||||||||||||||||||||| |907.6.4.1|||X|||||||||||||||||||||| |907.6.4.1.1|||X|||||||||||||||||||||| |907.6.4.2|||X|||||||||||||||||||||| |907.6.4.3|||X|||||||||||||||||||||| |907.6.4.4|||X|||||||||||||||||||||| |907.6.6|||X|||||||||||||||||||||| |907.6.6.4|||X|||||||||||||||||||||| |908.2|||X|||||||||||||||||||||| |909.5.3|||X|||||||||||||||||||||| |909.5.3.1|||X|||||||||||||||||||||| |909.12.1|||X|||||||||||||||||||||| |909.13.1|||X|||||||||||||||||||||| |909.16|||X|||||||||||||||||||||| |909.16.1|||X|||||||||||||||||||||| |909.18.9|||X|||||||||||||||||||||| |909.20|||X||||||||||||||||||||||

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  CALIFORNIA BUILDING CODE – MATRIX ADOPTION TABLE

  CHAPTER 9 – FIRE PROTECTION AND LIFE SAFETY SYSTEMS—continued

• CRC § 1.6 Medium relevance — show source text

  Foam plastics R302.8 Insulation R302.10, R302.14 Penetrations R302.4

  Townhouse separation R302.2 Two-family dwellings R302.3 Under-stair protection R302.7 Wall and ceiling finishes R302.9 Fire-Separation Distance Exterior walls and wall projections R302.1 Ground-mounted photovoltaic systems R329.7, R329.8 Fixtures

  Clearance R327.1

  Flood protection R306.1.6 Plumbing fixture, general R326, R327 Flame Spread Index R302.10, R302.9 Flashing R703.4, R703.8.5, R903.2, R905 Flood Protection Plan Areas protected by the facilities of Central Valley Appendix CK Flood-Resistant Construction

  General and structural R301.2.4, R306 Floors

  Bathtub and shower R327.2 Concrete (on ground) R506 Loads R301, R501.2 Steel framing R505 Treated wood (on ground) R504

  Wood framing R502 Flue

  Area R1003.14, R1003.15 Lining R1003.11, R1003.12 Multiple R1003.13 Foam Plastics R303 Footings R403 Foundations Chapter 4 Cripple walls R602.10.9, R602.11.2, R602.9

  Frost protection R403.1.4.1 Inspection R109.1.1 Walls R404

  Frame

  Inspection R109.1.4 Frost Protection R507.3, R507.3.3, R1001.2 Fuel Cell Power System, Stationary R322 Fuel-Burning Appliances (see Appliances)

  Garbage Disposal (see Food-Waste Disposers) Garages R317, R330.8.1 Electric vehicle charging infrastructure R317.6 Protection of Energy Storage Systems R330.8

  Generators R331

  Girders R502.5 Glazing Aggregate area R325.1 Greenhouses R324.6.6 Protection of openings R301.2.1.2 Safety glazing at hazardous locations R324

  Site-built R324.5 Skylights and sloped glazing R324.6 Grade

  Of lumber R502.1.1, R602.1.1, R802.1.1 Grade Plane R101.2, R301.2.2.7, R316.3 Ground Floors (on ground) R504, R506 Guards or Guardrail R321, R324.4.4 Exterior R507.10 Guestroom (see Lodging House) Gypsum Board and Gypsum Panel Products R702.3

  Hallways R318.6 Hand Shower (see Shower) Handrails R318.7.8, R318.8.3, R320, R324.4.4 Alternating tread devices R318.7.12.2 Ship’s ladders R318.7.13.2 Hazardous Location R324

  Headers

  SIP R610.8

  Steel R603.6

  Wood R602.7

• CRC § 6.4 Medium relevance — show source text

  6.4_|||X|||||||||||||||||||||| |907.2.6.5|||X|||||||||||||||||||||| |907.2.9|||X|||||||||||||||||||||| |907.2.9.1|||X|||||||||||||||||||||| |907.2.9.3|||X|||||||||||||||||||||| |907.2.9.4|||X|||||||||||||||||||||| |907.2.9.4.1|||X|||||||||||||||||||||| |907.2.10|||X|||||||||||||||||||||| |907.2.11|||X|||||||||||||||||||||| |907.2.11.1|||X|||||||||||||||||||||| |907.2.11.2|||X|||||||||||||||||||||| |907.2.11.2.1 – 907.2.11.2.6|||X|||||||||||||||||||||| |907.2.11.3|||X|||||||||||||||||||||| |907.2.11.4|||X|||||||||||||||||||||| |907.2.11.6|||X|||||||||||||||||||||| |907.2.11.8|||X|||||||||||||||||||||| |907.2.11.9|||X|||||||||||||||||||||| |907.2.12|||X|||||||||||||||||||||| |907.2.13|||X|||||||||||||||||||||| |907.2.13.1|||X|||||||||||||||||||||| |907.2.13.1.2|||X|||||||||||||||||||||| |907.2.24 with subsections|||X|||||||||||||||||||||| |907.2.25 with subsections|||X|||||||||||||||||||||| |907.2.26 with subsections|||X|||||||||||||||||||||| |907.2.27|||X||||||||||||||||||||||

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  CALIFORNIA BUILDING CODE – MATRIX ADOPTION TABLE

  CHAPTER 9 – FIRE PROTECTION AND LIFE SAFETY SYSTEMS—continued