CRSC · California Referenced Standards Code
What expertise and recognition must the independent entity have?
The State’s Access Compliance division must use a recognized, not‑for‑profit independent testing and certification organization — selected for its appropriate expertise — to confirm detectable warning products and directional surfaces meet Title 24; the CRSC requires recognition but does not spell out specific accreditation or numeric credential thresholds (see §§ 12‑11A.211 and 12‑11B.211).
Last reviewed: July 6, 2026
What the code requires — 2-4 sentences
The Division of the State Architect‑Access Compliance must select an independent entity that is “recognized as having appropriate expertise” to determine whether detectable warning products and directional surfaces comply with Title 24. This selection requirement appears in § 12-11A.211 and § 12-11B.211. § 12-11A.205 / § 12-11B.205 define the term independent entity as a not‑for‑profit product safety testing and certification organization focused on testing, certification and quality assessment.
The single most important rule: the State’s Access Compliance unit must use an independent, recognized organization with appropriate technical expertise (a not‑for‑profit testing/certification organization) to confirm compliance with Title 24.
Requirements in detail
Controlling text (plain reference)
Selection requirement: § 12-11A.211 and § 12-11B.211 require that the independent entity selected by the Division of the State Architect‑Access Compliance be “recognized as having appropriate expertise” to determine compliance with Title 24.
Definition of the independent entity: § 12-11A.205 and § 12-11B.205 define an independent entity as a not‑for‑profit product safety testing and certification organization dedicated to public‑safety testing, certification and quality assessment.
The code does not list specific accreditations, credential thresholds, or formal accreditation bodies in § 12-11A.211 / § 12-11B.211; it requires recognized expertise but leaves recognition and selection to the Division of the State Architect‑Access Compliance.
Decision‑relevant dimensions (table)
| Decision dimension | Expected value or threshold | Code Reference |
|---|---|---|
| Selecting authority | Division of the State Architect‑Access Compliance | § 12-11A.211 |
| Required recognition | “Recognized as having appropriate expertise” (no further detail in text) | § 12-11A.211 / § 12-11B.211 |
| Organizational type | Not‑for‑profit product safety testing & certification organization | § 12-11A.205 / § 12-11B.205 |
| Scope of work | Determine whether products comply with Title 24 (detectable warnings / directional surfaces) | § 12-11A.211 / § 12-11B.211 and context § 12-11A.202–209 |
| Formal accreditation required? | Not specified in §§ 12-11A.211 / 12-11B.211 — left to DSA‑Access Compliance to recognize | § 12-11A.211 / § 12-11B.211 |
What the code DOES and DOES NOT require
- DOES require the selecting authority to pick an entity that is recognized for appropriate expertise to assess Title 24 compliance. § 12-11A.211 / § 12-11B.211.
- DOES define independent entity as not‑for‑profit and focused on product testing/certification. § 12-11A.205 / § 12-11B.205.
- DOES NOT prescribe specific credentials, accreditation programs, numeric staff qualifications, or minimum sample sizes in § 12-11A.211 / § 12-11B.211 — those implementation details are left to the selecting authority and other referenced provisions.
Exceptions & special cases
The text of § 12-11A.211 / § 12-11B.211 contains no listed exceptions or special‑case language about alternate types of entities or temporary approvals; it simply states the recognition requirement for the independent entity selected by the Division of the State Architect‑Access Compliance. If you need to know whether a specific non‑profit or another organization qualifies, the code delegates that determination to the selecting authority.
Related procedural or scope exceptions appear elsewhere (for example, consultation with the Department of Housing and Community Development for residential housing uses is noted in the product approval context), but these are not exceptions to § 12-11A.211 / § 12-11B.211 itself.
Common mistakes
- Assuming the code names a specific accreditation body (e.g., ISO/IEC, ANSI) — it does not; § 12-11A.211 / § 12-11B.211 only requires the entity be “recognized as having appropriate expertise.”
- Treating for‑profit testing labs as automatically acceptable — the defined term independent entity in § 12-11A.205 / § 12-11B.205 describes a not‑for‑profit organization, so check the definition before assuming eligibility.
- Overlooking that selection authority matters: the Division of the State Architect‑Access Compliance, not individual manufacturers or local officials, makes the selection under these sections. § 12-11A.211 / § 12-11B.211.
Worked example — applying the rule
Scenario: A manufacturer submits a new detectable‑warning tile system for approval. The Division of the State Architect‑Access Compliance must have the product evaluated by an independent entity recognized for appropriate expertise.
Step‑by‑step application:
- The Division chooses an organization that meets the definition of independent entity (a not‑for‑profit product safety testing and certification organization) to run the evaluation. Reference: § 12-11A.205 / § 12-11B.205.
- The chosen entity performs tests and issues findings on Title 24 compliance; because § 12-11A.211 / § 12-11B.211 requires the entity be “recognized as having appropriate expertise,” the Division documents why it regards that organization as recognized (e.g., established program history, technical staff with demonstrated experience). The code text requires recognition but does not prescribe the format for that documentation — selection authority responsibility remains with the Division.
- Assuming the product is approved, the product will require recertification every two years per § 12-11A.206 / § 12-11B.206, which makes the independence and ongoing competence of the evaluating organization operationally important. (Two‑year recertification is part of the product approval framework.)
Numbers used are in the related provisions (for example, two years for recertification is in § 12-11A.206 / § 12-11B.206). The central requirement for expertise and recognition itself is qualitative and delegated to the selecting authority.
Related provisions
- § 12-11A.205 / § 12-11B.205 — definition of independent entity (not‑for‑profit product safety testing & certification organization).
- § 12-11A.206 / § 12-11B.206 — two‑year approval / recertification requirement for detectable warning products and directional surfaces (operational tie to the independent entity’s ongoing role).
- § 12-11A.209 / § 12-11B.209 — required durable characteristics (shape, color fastness, conformation, acoustic quality, resilience, attachment) that the independent entity evaluates for significant degradation.
- § 12-11A.210 / § 12-11B.210 — definition of significant degradation (maintain at least 90 percent of approved design characteristics for five years), which is part of what the independent entity assesses.
If you need guidance on how the Division documents “recognition” or examples of acceptable credentials, the CRSC text in § 12-11A.211 / § 12-11B.211 does not specify those details — that is an implementation question to be resolved by the Division (or by separate implementing procedures).
Code references
Grounded in the retrieved California Referenced Standards Code — click a citation to read the verbatim passage:
CRSC § 12-11 High relevance — show source text
(c) Conformation, (d) Sound-on-cane acoustic quality, (e) Resilience, and (f) Attachment will not degrade significantly for at least five years.
SIGNIFICANT DEGRADATION
Sections 12-11A.210 and 12-11B.210. Significant degradation means that the product maintains at least 90 percent of its approved design characteristics.
SELECTION OF INDEPENDENT ENTITY
Sections 12-11A.211 and 12-11B.211. The independent entity selected by the Division of the State Architect-Access Compliance shall be recognized as having appropriate expertise in determining whether products comply with the California Code of Regulations, Title 24.
Authority: Government Code Sections 4450, 4460 and Health & Safety Code Section 18949.1.
Reference: Government Code Section 4460.
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12-13 STANDARDS FOR INSULATING MATERIAL
(See Part 6, Title 24, CCR)
DEPARTMENT OF CONSUMER AFFAIRS
Bureau of Household Goods and Services
ARTICLE 3. STANDARDS FOR INSULATING MATERIAL
APPLICATION AND SCOPE
Sec. 12-13-1551.
(a) This article establishes standards governing the quality of insulation sold within the state after September 22, 1981, including those properties which affect the safety and thermal performance of insulation during application and in the use intended.
(b) The provisions of this article shall apply only to the following types of insulating material:
Aluminum foil (reflective foil);
Cellular glass (board form);
Cellulose fiber (loose fill and spray applied);
Mineral aggregate (board form);
Mineral fiber (blankets, board form, loose fill);
Perlite (loose fill);
Polystyrene (board form, molded and extruded);
Polyurethane (board form and field applied);
Polyisocyanurate (board form and field applied);
Urea formaldehyde foam (field applied);
Vermiculite (loose fill).
(c) The provisions of this article shall apply to the sale of insulating material within the state. The provisions of this article shall not apply to insulating material manufactured in California, but sold outside the state, nor to insulating material manufactured outside California and sold wholesale in California for final retail sale outside the state. For the purpose of this article, the sale of a building or an appliance which contains installed insulating material is not considered the sale of the insulating material.
(d) Any type of insulating material not listed in subsection (b) may be sold within California notwithstanding any other provision of this article.
Authority: Sections 25920 and 25922, Public Resources Code.
Reference: Sections 25910, 25920, 25921 and 25922, Public Resources Code.
CRSC § 12-11 High relevance — show source text
DETECTABLE WARNING PRODUCTS
Sections 12-11A.203 and 12-11B.203. Must comply with the California Code of Regulations, Title 24.
DIRECTIONAL SURFACES
Sections 12-11A.204 and 12-11B.204. Must comply with the California Code of Regulations, Title 24.
INDEPENDENT ENTITY
Sections 12-11A.205 and 12-11B.205. Evaluation by an independent entity to confirm the prescriptive and performance standard of detectable warning products or direction surfaces installed after January 1, 2001. An independent entity is a not-for-profit product safety testing and certification organization, dedicated to testing for public safety. An independent entity would operate for the testing, certification and quality assessment of products, systems and services.
TWO-YEAR APPROVAL
Sections 12-11A.206 and 12-11B.206. Detectable warning products and directional surfaces are to be recertified every two years without exception or waiver.
FEE
Sections 12-11A.207 and 12-11B.207. The Division of the State Architect-Access Compliance may impose a fee on manufacturers of the specified products, to cover the cost of detectable warning products and directional surfaces.
DISABILITY ACCESS ACCOUNT
Sections 12-11A.208 and 12-11B.208. The fees received from manufacturers will be placed in the Disability Access Account.
DETECTABLE WARNING PRODUCTS AND DIRECTIONAL SURFACES
Sections 12-11A.209 and 12-11B.209. Detectable Warning Products and Directional Surfaces must ensure consistency and uniformity: (a) Shape, (b) Color fastness,
(c) Conformation, (d) Sound-on-cane acoustic quality, (e) Resilience, and (f) Attachment will not degrade significantly for at least five years.
SIGNIFICANT DEGRADATION
Sections 12-11A.210 and 12-11B.210. Significant degradation means that the product maintains at least 90 percent of its approved design characteristics.
SELECTION OF INDEPENDENT ENTITY
Sections 12-11A.211 and 12-11B.211. The independent entity selected by the Division of the State Architect-Access Compliance shall be recognized as having appropriate expertise in determining whether products comply with the California Code of Regulations, Title 24.
Authority: Government Code Sections 4450, 4460 and Health & Safety Code Section 18949.1.
Reference: Government Code Section 4460.
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12-13 STANDARDS FOR INSULATING MATERIAL
(See Part 6, Title 24, CCR)
DEPARTMENT OF CONSUMER AFFAIRS
Bureau of Household Goods and Services
CRSC § 1.1 High relevance — show source text
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SPECIAL INSPECTIONS AND TESTS
1703 A .1.1 Independence. An approved agency shall be objective, competent and independent from any other entity providing inspection services and contractor (s) responsible for the work being inspected. The agency shall disclose to the building official and the registered design professional in responsible charge possible conflicts of interest so that objectivity can be confirmed.
1703 A .1.2 Equipment. An approved agency shall have adequate equipment to perform required tests. The equipment shall be periodically calibrated.
1703 A .1.3 Personnel. An approved agency shall employ experienced personnel educated in conducting, supervising and evaluating tests and special inspections.
1703 A .2 Written approval. Any material, appliance, equipment, system or method of construction meeting the requirements of this code shall be approved in writing after satisfactory completion of the required tests and submission of required test reports.
1703 A .3 Record of approval. For any material, appliance, equipment, system or method of construction that has been approved, a record of such approval, including the conditions and limitations of the approval, shall be kept on file in the building official’s office and shall be available for public review at appropriate times.
1703 A .4 Performance. Specific information consisting of test reports conducted by an approved agency in accordance with the appropriate referenced standards, or other such information as necessary, shall be provided for the building official to determine that the product, material or assembly meets the applicable code requirements.
[OSHPD 1 & 4] Tests performed by an independent approved testing agency/laboratory or under the responsible charge of a compe- tent approved independent Registered Design Professional shall be deemed to comply with requirements of this section. Test reports for structural tests shall be reviewed and accepted by an independent California licensed structural engineer.
1703 A .4.1 Research and investigation. Sufficient technical data shall be submitted to the building official to substantiate the proposed use of any product, material or assembly. If it is determined that the evidence submitted is satisfactory proof of performance for the use intended, the building official shall approve the use of the product, material or assembly subject to the requirements of this code. The costs, reports and investigations required under these provisions shall be paid by the owner or the owner’s authorized agent.
1703 A .4.2 Research reports. Supporting data, where necessary to assist in the approval of products, materials or assemblies not specifically provided for in this code, shall consist of valid research reports from approved sources.
1703 A .5 Labeling. Products, materials or assemblies required to be labeled shall be labeled in accordance with the procedures set forth in Sections 1703 A .5.1 through 1703 A .5.4.
1703 A .5.1 Testing. An approved agency shall test a representative sample of the product, material or assembly being labeled to the relevant standard or standards. The approved agency shall maintain a record of the tests performed. The record shall provide sufficient detail to verify compliance with the test standard.
CRSC § 12-10 High relevance — show source text
(f) Release bar deformation. The cross-bar on a 36-inch (914 mm) wide door shall not be permanently set or deformed in excess of [1] / 4 inch (6 mm), by the test; a spacing of at least 1 inch (25 mm) is to be provided and maintained between the cross-bar and the face of the door when the horizontal force is applied against the cross-bar.
MARKING
Sec. 12-10-306. The listee’s name (or approved symbol), type or model designation shall be plainly marked on the releasing assembly. Devices and assemblies which are not listed by an approved listing agency for the intended purpose shall bear a label or other identifying markings as approved by the State Fire Marshal.
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CHAPTERS
12-11A and 11B BUILDING AND FACILITY ACCESS SPECIFICATIONS
Detectable warning products and directional surfaces installed after January 1, 2001, shall be evaluated by an independent entity, selected by the Department of General Services, Division of the State Architect-Access Compliance, for all occupancies, including transportation and other outdoor environments, except that when products and surfaces are for use in residential housing evaluation shall be in consultation with the Department of Housing and Community Development. See Government Code Section 4460.
PRODUCT APPROVAL FOR DETECTABLE WARNING PRODUCTS AND DIRECTIONAL SURFACES
SCOPE
Sections 12-11A.202 and 12-11B.202. These requirements and test methods apply to detectable warning products and directional surfaces.
DETECTABLE WARNING PRODUCTS
Sections 12-11A.203 and 12-11B.203. Must comply with the California Code of Regulations, Title 24.
DIRECTIONAL SURFACES
Sections 12-11A.204 and 12-11B.204. Must comply with the California Code of Regulations, Title 24.
INDEPENDENT ENTITY
Sections 12-11A.205 and 12-11B.205. Evaluation by an independent entity to confirm the prescriptive and performance standard of detectable warning products or direction surfaces installed after January 1, 2001. An independent entity is a not-for-profit product safety testing and certification organization, dedicated to testing for public safety. An independent entity would operate for the testing, certification and quality assessment of products, systems and services.
TWO-YEAR APPROVAL
Sections 12-11A.206 and 12-11B.206. Detectable warning products and directional surfaces are to be recertified every two years without exception or waiver.
FEE
Sections 12-11A.207 and 12-11B.207. The Division of the State Architect-Access Compliance may impose a fee on manufacturers of the specified products, to cover the cost of detectable warning products and directional surfaces.
DISABILITY ACCESS ACCOUNT
Sections 12-11A.208 and 12-11B.208. The fees received from manufacturers will be placed in the Disability Access Account.
DETECTABLE WARNING PRODUCTS AND DIRECTIONAL SURFACES
Sections 12-11A.209 and 12-11B.209. Detectable Warning Products and Directional Surfaces must ensure consistency and uniformity: (a) Shape, (b) Color fastness,
CRSC § 8.3.2.5. High relevance — show source text
3. See Health and Safety Code Section 19966 for “Approved” as applied to factory-built housing as referenced in Section 1.8.3.2.5.
4. See Health and Safety Code Section 18201 for “Approved” as applied to mobilehome parks as referenced in Section 1.8.2.1.3. 5. See Health and Safety Code Section 18862.1 for “Approved” as applied to special occupancy parks as referenced in Section 1.8.2.1.3.
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DEFINITIONS
[A] APPROVED AGENCY. An established and recognized organization that is regularly engaged in conducting tests, furnishing inspection services or furnishing product evaluation or certification where such organization has been approved by the building official.
[HCD 1 & HCD 2] “Approved agency” shall mean “Listing agency” and “Testing agency.”
[DSA-SS, DSA-SS/CC] This term is synonymous with “laboratory of record” as referenced in Section 4-335 of the California Administra- tive Code.
[BS] APPROVED FABRICATOR. An established and qualified person, firm or corporation approved by the building official pursuant to Chapter 17 of this code.
APPROVED LISTING AGENCY. [HCD 1 & HCD 2] Any agency approved by the enforcing agency, unless otherwise provided by law, which is in the business of listing and labeling and which makes available at least an annual published report of such listings in which specific information is included that the product has been tested to recognized standards and found to comply.
[A] APPROVED SOURCE. An independent person, firm or corporation, approved by the building official, who is competent and experienced in the application of engineering principles to materials, methods or systems analyses.
APPROVED TESTING AGENCY. [HCD 1, HCD 2, DSA-AC & OSHPD 1, 1R, 2, 4 & 5] Any agency, which is determined by the enforcing agency, except as otherwise provided by law, to have adequate personnel and expertise to carry out the testing of systems, materials, types of construction, fixtures or appliances.
[BS] AREA (for masonry).
Gross cross-sectional. The area delineated by the out-to-out specified dimensions of masonry in the plane under consideration.
Net cross-sectional. The area of masonry units, grout and mortar crossed by the plane under consideration based on out-to-out specified dimensions.
[BG] AREA, BUILDING. The area included within surrounding exterior walls, or exterior walls and fire walls, exclusive of vent shafts and courts. Areas of the building not provided with surrounding walls shall be included in the building area if such areas are included within the horizontal projection of the roof or floor above.
[BE] AREA OF REFUGE. An area where persons unable to use stairways can remain temporarily to await instructions or assistance during emergency evacuation.
[BE] AREA OF SPORT ACTIVITY. That portion of an indoor or outdoor space where the play or practice of a sport occurs.
[BG] AREAWAY. A subsurface space adjacent to a building open at the top or protected at the top by a grating or guard.
CRSC § 1.8.2.1.1. Medium relevance — show source text
[MP] ANCHORS. See “Supports.”
[MP] ANTISIPHON. A term applied to valves or mechanical devices that eliminate siphonage.
[MP] APPLIANCE. A device or apparatus that is manufactured and designed to utilize energy and for which this code provides specific requirements.
[RB] APPROVED. Acceptable to the building official.
APPROVED. (HCD 1) Meeting the approval of the enforcing agency, except as otherwise provided by law, when used in connection with any system, material, type of construction, fixture or appliance as the result of investigations and tests conducted by the agency, or by reason of accepted principles or tests by national authorities or technical, health or scientific organizations or agencies.
Notes:
1. See Health and Safety Code Section 17920 for “Approved” as applied to residential construction and buildings or structures accessory thereto, as referenced in Section 1.8.2.1.1. 2. See Health and Safety Code Section 17921.1 for “Approved” as applied to the use of hotplates in residential construction referenced in Section 1.8.2.1.1.
3. See Health and Safety Code Section 19966 for “Approved” as applied to factory-built housing as referenced in Section 1.8.3.2.5.
4. See Health and Safety Code Section 18201 for “Approved” as applied to mobilehome parks as referenced in Section 1.8.3.2.2. 5. See Health and Safety Code Section 18862.1 for “Approved” as applied to special occupancy parks as referenced in Section 1.8.3.2.3.
[RB] APPROVED AGENCY. An established and recognized organization that is regularly engaged in conducting tests, furnishing inspection services or furnishing product evaluation or certification where such organization has been approved. (HCD 1) “Approved agency” shall mean “Listing agency” and “Testing agency.”
APPROVED LISTING AGENCY. Any agency approved by the enforcing agency, unless otherwise provided by statute, which is in the busi- ness of listing and labeling and which makes available at least an annual published report of such listings in which specific information is included that the product has been tested to recognized standards and found to comply.
[RB] APPROVED SOURCE. An independent person, firm or corporation, approved by the building official, who is competent and experienced in the application of engineering principles to materials, methods or systems analyses.
APPROVED TESTING AGENCY. Any agency which is determined by the enforcing agency, except as otherwise provided by statute, to have adequate personnel and expertise to carry out the testing of systems, materials and construction fixtures or appliances.
[RB] ASPECT RATIO. The ratio of longest to shortest perpendicular dimensions, or for wall sections, the ratio of height to length.
[RB] ATTIC. The unfinished space between the ceiling assembly and the roof assembly.
[RB] ATTIC, HABITABLE. A finished or unfinished habitable space within an attic.
[MP] BACKFLOW, DRAINAGE. A reversal of flow in the drainage system.
[MP] BACKFLOW, WATER DISTRIBUTION. The flow of water or other liquids into the potable water-supply piping from any sources other than its intended source. Backsiphonage is one type of backflow.
CRSC § 5.410.2 Medium relevance — show source text
Reference: Section 5.410.2, Commissioning.
Introduction:
The purpose of this code is to improve public health, safety and general welfare by enhancing the design and construction of buildings through the use of concepts that reduce negative and increase positive environmental impacts. Commissioning is a vital element in this effort.
Definitions used in the CALGreen Cx Reference standard:
Acronyms
BOD Basis of Design
Cx Commissioning
FPT Functional Performance Test
HVAC Heating, Ventilating and Air-Conditioning
O&M Operations and Maintenance
OPR Owner’s Project Requirements
Glossary:
Acceptance Criteria— The conditions that must be met for systems or equipment to meet defined and expected outcomes.
Commissioning (Cx)— Building commissioning as required in this code involves a quality assurance process that begins during design and continues to occupancy. Commissioning verifies that the new building operates as the owner intended and that building staff are prepared to operate and maintain its systems and equipment. Exceptions are allowed for dry storage warehouses of any size and conditioned spaces under 10,000 square feet accessory to them; and for tenant improvements under 10,000 square feet within a larger space.
Owner— The individual or entity holding title to the property on which the building is constructed.
Commissioning Coordinator— The person who coordinates the commissioning process. This can be either a third-party commissioning provider or an experienced member of the design team or owner in-house staff member.
Commissioning Team— The key members of each party involved with the project designated to provide insight and carry out tasks necessary for a successful commissioning project. Team members may include the commissioning coordinator, owner or owner’s representative, building staff, design professionals, contractors or manufacturer’s representatives and testing specialists.
Independent Third-Party Commissioning Professional— A commissioning consultant contracted directly by the owner who is not responsible to, or affiliated with, any other member of the design and construction team.
Operation and Maintenance (O&M) Manuals— Documents that provide information necessary for operating and maintaining installed equipment and systems.
Owner Representative— An individual or entity assigned by the owner to act and sign on the owner’s behalf.
Process Equipment— Energy-using equipment and components that are not used for HVAC, electrical, plumbing and irrigation operations. Such devices would include but are not limited to heat transfer, water purifying, air cleaning, air vacuum and air compressing.
Sequence of Operation— A written description of the intended performance and operation of each control element and feature of the equipment and systems.
Selecting Trained Personnel (for Commissioning)
This code requires that “Commissioning shall be performed in accordance with this section by trained personnel with experience on projects of comparable size and complexity.” The trained personnel manage and facilitate the commissioning process. The trained personnel develop and implement the commissioning tasks and documentation identified in Sections 5.410.2.1 through 5.410.2.6. Trained personnel may include appropriate members of owner staff, contractor and design team as well as independent commissioning professionals.
It is essential that there is a single person designated to lead and manage the commissioning activities. In practice, this individual has been referenced by various identifiers such as commissioning authority, agent, provider, coordinator, lead, etc. In this guide the term “commissioning coordinator” is used.
CRSC § 25.4 Medium relevance — show source text
The interior and exterior cob faces shall be permitted to be unfinished or receive any plaster finish allowed by this appendix.
d.
Cob walls with more than one density shall be built with heavier densities below lighter densities.
e.
Minimum cob wall thickness shall be whichever is greater in Tables BK105.3, BK106.11(1) and BK108.1.
f.
Wall thicknesses less than 10 inches require an engineered design.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound = 0.45 kg, 1 pound per cubic foot = 16.02 kg/m3.
a.
Density is to be measured at equilibrium moisture content. Average wall density shall be within ±5 pcf of the tabulated value.
b.
Requires an approved engineered design per Section BK106.6.
c.
Cob thickness only. The interior and exterior cob faces shall be permitted to be unfinished or receive any plaster finish allowed by this appendix.
d.
Cob walls with more than one density shall be built with heavier densities below lighter densities.
e.
Minimum cob wall thickness shall be whichever is greater in Tables BK105.3, BK106.11(1) and BK108.1.
f.
Wall thicknesses less than 10 inches require an engineered design.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound = 0.45 kg, 1 pound per cubic foot = 16.02 kg/m3.
a.
Density is to be measured at equilibrium moisture content. Average wall density shall be within ±5 pcf of the tabulated value.
b.
Requires an approved engineered design per Section BK106.6.
c.
Cob thickness only. The interior and exterior cob faces shall be permitted to be unfinished or receive any plaster finish allowed by this appendix.
d.
Cob walls with more than one density shall be built with heavier densities below lighter densities.
e.
Minimum cob wall thickness shall be whichever is greater in Tables BK105.3, BK106.11(1) and BK108.1.
f.
Wall thicknesses less than 10 inches require an engineered design.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound = 0.45 kg, 1 pound per cubic foot = 16.02 kg/m3.
a.
Density is to be measured at equilibrium moisture content. Average wall density shall be within ±5 pcf of the tabulated value.
b.
Requires an approved engineered design per Section BK106.6.
c.
Cob thickness only. The interior and exterior cob faces shall be permitted to be unfinished or receive any plaster finish allowed by this appendix.
d.
Cob walls with more than one density shall be built with heavier densities below lighter densities.
e.
Minimum cob wall thickness shall be whichever is greater in Tables BK105.3, BK106.11(1) and BK108.1.
f.
Wall thicknesses less than 10 inches require an engineered design.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound = 0.45 kg, 1 pound per cubic foot = 16.02 kg/m3.
a.
Density is to be measured at equilibrium moisture content.CRSC § 25.4 Medium relevance — show source text
For SI: 1 inch = 25.4 mm.
BJ105.1(3)—TYPICAL TOP OF LOAD-BEARING STRAWBALE WALL
BOUNDARY NAILING PER TABLE R602.3(1)
ROOF SYSTEM PER CHAPTER 8
CAPACITY AT MAX. 2' O.C.
2X BLOCKING FOR DIRECT
BEARING ONTO PLASTER PER
SECTION BJ106.11
METAL CONNECTOR WITH MIN. 400
LB CAPACITY AT MAX. 2' O.C. FOR
BRACED WALL PANELS
FOR BRACED WALL PANELS
INSULATION FILL
STRAW BALES PER SECTIONS BJ103
AND BJ106.4 SHOWN LAID FLAT.
ON-EDGE IS PERMITTED.
For SI inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound = 2.2 kg.
2X BLOCKING FOR DIRECT BEARING
ONTO PLASTER PER SECTION
BJ106.11
HEADER AT WALL OPENINGS PER TABLE R602.7(1) AND SECTION BJ106.12.3
16d NAILS @ 4 "
MESH STAPLES PER TABLE BJ106.13(1) FOR BRACED WALL PANELS FOR WIND UPLIFT, PER SECTION BJ106.14.
MULTIPLE 2X WHERE REQUIRED FOR HEADERS PER TABLE R602.7(1)
PLASTER FOR LOAD-BEARING
WALLS PER TABLE BJ106.12 AND PER TABLE BJ106.13(1) WHERE WALL IS ALSO USED AS A BRACED
WALL PANEL
MESH AS REQUIRED PER TABLE BJ106.12 OR BJ106.13(1) OR SECTION BJ106.14
APPENDIX BJ-8 2025 CALIFORNIA RESIDENTIAL CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
APPENDIX BJ — STRAWBALE CONSTRUCTION
FIGURE BJ105.1(4)—TYPICAL TOP OF POST-AND-BEAM WALL WITH PLASTERED STRAWBALE INFILL
BOUNDARY NAILING PER TABLE R602.3(1)
ROOF SYSTEM PER
CHAPTER 8
2X BLOCKING PER SECTION
BJ106.11 FOR BRACED WALL
PANELS
MESH STAPLES PER TABLE BJ106.13(1) FOR BRACED WALL PANELS
PLASTER, PLYWOOD OR GYPSUM BOARD PER SECTION BJ104.2
STRAW BALES PER SECTIONS BJ103
AND BJ106.4 SHOWN LAID FLAT.
ON-EDGE IS PERMITTED.
NOTE:
NOTE:
NONPLASTER FINISHES ARE
For SI: 1 inch = 25.4 mm.
MESH STAPLES PER TABLE BJ106.13(1) FOR BRACED WALL PANELS
2X BLOCKING PER SECTION
BJ106.11 FOR BRACED WALL
PANELS
BEAM PER TABLE R602.7(1) AND SECTION BJ106.15, WITH MIN. 1½ ″ BEARING OVER POSTS
POSTS BEYOND, AT SPACING PER SPAN IN TABLE R602.7(1). POST = NJ + 1 WITH APPROVED
CONNECTION TO BEAM.
PLASTER PER SECTION BJ104.4 OR PER TABLE BJ106.13(1) WHERE WALL IS USED AS A BRACED WALL
PANEL
CRSC § 0.42 Medium relevance — show source text
Fastener spacing applies where wood exterior soffit framing member-specific gravity is 0.42 or larger. Where the specific gravity of exterior soffit framing members is greater
than or equal to 0.35 but less than 0.42 in accordance with AWC NDS, the fastener spacing shall be multiplied by 0.67 or the same fastener spacing as prescribed for galvanized
steel nails shall be permitted to be used where RSRS-01 (2-inch by 0.099-inch by 0.266-inch head) nails replace 6d box nails and RSRS-03 (21/2-inch × 0.131-inch × 0.281-inch
head) nails replace 8d common nails or 10d box nails. RSRS is a Roof Sheathing Ring Shank nail meeting the specifications in ASTM F1667. Framing members shall be mini-
mum 2 × 3 nominal with the larger dimension in the cross section aligning with the length of fasteners to provide sufficient embedment depths.
f. Spacing at intermediate supports shall be not greater than 12 inches on center.|For SI: 1 inch = 25.4 mm, 1 pound per square foot = 0.0479 kPa.
a. Fasteners shall comply with Sections R703.3.2 and R703.3.3.
b. Maximum spacing of exterior soffit framing members shall not exceed 24 inches.
c. Wood structural panels shall be of an exterior exposure grade.
d. Wood structural panels shall be installed with strength axis perpendicular to supports with not fewer than two continuous spans.
e. Fastener spacing applies where wood exterior soffit framing member-specific gravity is 0.42 or larger. Where the specific gravity of exterior soffit framing members is greater
than or equal to 0.35 but less than 0.42 in accordance with AWC NDS, the fastener spacing shall be multiplied by 0.67 or the same fastener spacing as prescribed for galvanized
steel nails shall be permitted to be used where RSRS-01 (2-inch by 0.099-inch by 0.266-inch head) nails replace 6d box nails and RSRS-03 (21/2-inch × 0.131-inch × 0.281-inch
head) nails replace 8d common nails or 10d box nails. RSRS is a Roof Sheathing Ring Shank nail meeting the specifications in ASTM F1667. Framing members shall be mini-
mum 2 × 3 nominal with the larger dimension in the cross section aligning with the length of fasteners to provide sufficient embedment depths.
f. Spacing at intermediate supports shall be not greater than 12 inches on center.|For SI: 1 inch = 25.4 mm, 1 pound per square foot = 0.0479 kPa.
a. Fasteners shall comply with Sections R703.3.2 and R703.3.3.
b. Maximum spacing of exterior soffit framing members shall not exceed 24 inches.
c. Wood structural panels shall be of an exterior exposure grade.
d. Wood structural panels shall be installed with strength axis perpendicular to supports with not fewer than two continuous spans.
e. Fastener spacing applies where wood exterior soffit framing member-specific gravity is 0.42 or larger.CRSC § 321.2.1 Medium relevance — show source text
321.2.1 The approach used in the development of the design shall be acceptable to the peer reviewer and the enforcement agency and shall be the same method as used in the evaluation of the building. Approaches that are specifically tailored to the type of building, construction materials and specific building characteristics may be used, if they are acceptable to the independent peer reviewer. The use of Method A allowed procedures may also be used under Method B.
321.2.2 Any method of analysis may be used, subject to acceptance by the peer reviewer(s) and the building official. The general requirements given in ASCE 41, Chapters 6 and 7, shall be complied with unless exceptions are accepted by the peer reviewer(s) and building official. Use of other than ASCE 41 procedures in Method B requires building official concurrence before implementation.
321.2.3 Prior to implementation, the procedures, methods, material assumptions and acceptance/rejection criteria proposed by the registered design professional will be peer reviewed as provided in Section 322. Where nonlinear procedures are used, prior to any analysis, the representation of the seismic ground motion shall be reviewed and approved by the peer reviewer(s) and the building official.
[DSA-SS, DSA-SS/CC] For public school and community college projects, the representation of the seismic ground motion shall be reviewed and approved by the California Geological Survey.
321.2.4 The conclusions and design decisions shall be reviewed and accepted by the peer reviewer(s) and the building official.
SECTION 322 [BSC, DSA-SS & DSA-SS/CC]—PEER REVIEW REQUIREMENTS
322.1 General. Independent peer review is an objective, technical review by knowledgeable reviewer(s) experienced in the structural design, analysis and performance issues involved. The reviewer(s) shall examine the available information on the condition of the building, the basic engineering concepts employed and the recommendations for action.
322.2 Timing of independent review. The independent reviewer(s) shall be selected prior to initiation of substantial portions of the design and/or analysis work that is to be reviewed, and review shall start as soon as practical after Method B is adopted and sufficient information defining the project is available.
322.3 Qualifications and terms of employment. The reviewer(s) shall be independent from the design and construction team.
322.3.1 The reviewer(s) shall have no other involvement in the project before, during or after the review, except in a review capacity.
2025 CALIFORNIA EXISTING BUILDING CODE 3-21
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
PROVISIONS FOR ALL COMPLIANCE METHODS
322.3.2 The reviewer(s) shall be selected and paid by the owner and shall have technical expertise in the evaluation and retrofit of buildings similar to the one being reviewed, as determined by the enforcement agency.
322.3.3 The reviewer (or in the case of review teams, the chair) shall be a California-licensed structural engineer who is familiar with the technical issues and regulations governing the work to be reviewed.
Exception: Other individuals with acceptable qualifications and experience may be a peer reviewer(s) with the approval of the building official.
CRSC § 102.4 Medium relevance — show source text
Chapter 31F is promulgated by the California State Lands Commission (SLC) and establishes minimum engineering, inspection and maintenance criteria for marine oil terminals (MOTs) in order to prevent oil spills and to protect public health, safety and the environ- ment. The provisions of this chapter regulate onshore and offshore MOTs, including marine terminals that transfer liquefied natural gas (LNG) and are applicable to the evaluation of existing MOTs and design of new MOTs in California. The Marine Environmental Protection Division administers this chapter on behalf of the SLC.
Chapter 32 Encroachments into the Public Right-of-Way.
Buildings and structures may be designed to extend over a property line and into the public right-of-way. Local regulations outside of the building code usually set limits to such encroachments, and such regulations take precedence over the provisions of this chapter. Chapter 32 establishes parameters for such encroachments, not only at grade but also above and below grade. Pedestrian walkways must also comply with Chapter 31.
Chapter 33 Safeguards During Construction.
Chapter 33 provides safety requirements for the job site during construction and demolition of buildings and structures. In addition, it provides requirements intended to protect the public from injury and adjoining property from damage.
Chapter 34 Reserved.
Chapter 35 Referenced Standards.
Chapter 35 lists all of the product and installation standards and codes that are referenced throughout Chapters 1 through 33 and includes identification of the promulgators and the section numbers in which the standards and codes are referenced. As stated in Section 102.4, these standards and codes become an enforceable part of the code (to the prescribed extent of the reference) as if printed in the body of the code.
Appendix A Employee Qualifications.
Effective administration and enforcement of the family of International Codes depends on the training and expertise of the personnel employed by the jurisdiction and their knowledge of the codes. Section 103 of the code establishes the Department of Building Safety and calls for the appointment of a building official and deputies, such as plans examiners and inspectors. Appendix A provides standards for experience, training and certification for the building official and the other staff mentioned in Chapter 1.
Appendix B Board of Appeals.
Appendix B contains the provisions for appeal and the establishment of a board of appeals. The provisions include the application for an appeal, the makeup of the board of appeals and the conduct of the appeal process.
2025 CALIFORNIA BUILDING CODE xvii
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
Appendix C Group U—Agricultural Buildings.
Appendix C provides special consideration for the construction of agricultural buildings reflective of their specific usage and limited occupant load. The provisions of this appendix allow reasonable heights and areas commensurate with the risk of agricultural buildings.
Appendix D Fire Districts.
Appendix D establishes a framework by which a jurisdiction can establish a portion of a jurisdiction as a fire district where limiting the potential spread of fire is a key consideration. Fire district standards restrict certain occupancies within the district, as well as setting higher minimum construction standards.
Appendix E Reserved.
Appendix F Rodentproofing.
The provisions of Appendix F are minimum mechanical methods to prevent the entry of rodents into a building.
Appendix G Flood-Resistant Construction.
Frequently asked questions
Who picks the independent entity?
The Division of the State Architect‑Access Compliance selects the independent entity, per § 12-11A.211 / § 12-11B.211.
Must the independent entity be a not‑for‑profit?
Yes — the code’s definition of independent entity describes a not‑for‑profit product safety testing and certification organization. See § 12-11A.205 / § 12-11B.205.
Does the code list specific accreditations or personnel qualifications?
No — § 12-11A.211 / § 12-11B.211 requires the entity to be “recognized as having appropriate expertise” but does not prescribe specific accreditations or numeric qualifications.
What does “recognized as having appropriate expertise” mean in practice?
The phrase is qualitative in the code; the Division must determine recognition (e.g., by reviewing an organization’s testing history, staff expertise, program practices). The CRSC text itself does not set a checklist. § 12-11A.211 / § 12-11B.211.
How often does the independent entity need to re‑evaluate a product?
Product recertification is required every two years under § 12-11A.206 / § 12-11B.206, so the independent entity’s role is ongoing.
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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