CRSC · California Referenced Standards Code
Which detectable warning products and directional surfaces are covered by Chapters 12‑11A and 12‑11B?
The CRSC (Chs. 12‑11A/12‑11B) covers **detectable warning products** and **directional surfaces** and requires evaluation by an independent entity and two‑year recertification; the CRSC delegates the specific dimensions, colors, spacing, and installation depths to the California Building Code (Title 24, Chapter 11B) and requires compliance with those Title 24 provisions.
Last reviewed: July 6, 2026
What the code requires — 2–4 sentences
In plain English: Chapters § 12-11A.202 and § 12-11B.202 say the CRSC’s product requirements and test methods apply to detectable warning products and directional surfaces. The CRSC then requires that those products “must comply with the California Code of Regulations, Title 24” (the California Building Code accessibility provisions) per § 12-11A.203 and § 12-11B.203.
Detectable warning products and directional surfaces installed after January 1, 2001 must be evaluated by an independent entity selected by the Division of the State Architect—Access Compliance and must meet Title 24 requirements.
Requirements in detail
Scope and controlling CRSC sections
- The CRSC explicitly covers detectable warning products and directional surfaces in § 12-11A.202 and § 12-11B.202 (scope/test methods apply to these products).
- The CRSC prescribes compliance with Title 24 for the specific prescriptive and performance features in § 12-11A.203 and § 12-11B.203.
Administrative and approval rules in the CRSC (key points)
- Products and surfaces installed after January 1, 2001 must be evaluated by an independent entity selected by the Division of the State Architect—Access Compliance (DSA-AC). For residential-use products, evaluation is done in consultation with the Department of Housing and Community Development. § 12-11A.205 / § 12-11B.205 (see CRSC).
- Two‑year recertification (re-approval) is mandatory: products and surfaces are to be recertified every two years. § 12-11A.206 / § 12-11B.206.
- The CRSC requires consistency/uniformity attributes (shape, color fastness, conformation, sound-on-cane acoustic quality, resilience, attachment durability) and defines significant degradation as maintaining at least 90 percent of approved design characteristics. § 12-11A.209–210 / § 12-11B.209–210.
What Title 24 (CCR, Part 2 / Chapter 11B) requires (selected, decision‑relevant dimensions & values)
The CRSC delegates the detailed product performance and dimensional requirements to Title 24 (California Building Code accessibility rules). Key Title 24 specifics used in decisions are summarized below and must be checked in the code when approving or specifying products.
| Decision dimension | Required value or rule | Code Reference |
|---|---|---|
| Which products/surfaces are covered | Detectable warning surfaces (truncated‑dome surfaces) and detectable directional texture (directional bars at transit platforms) | CRSC: § 12-11A.202 / § 12-11B.202; Title 24: § 11B‑705 / § 11B‑247 |
| Dome base diameter | 0.90 in – 0.92 in (22.9–23.4 mm) | § 11B‑705.1.1.1 |
| Dome top diameter | 0.45 in – 0.47 in (11.4–11.9 mm) | § 11B‑705.1.1.1 |
| Dome height | 0.20 in (5.1 mm) | § 11B‑705.1.1.1 |
| Dome center‑to‑center spacing (square grid) | 2.3 in – 2.4 in (58–61 mm) | § 11B‑705.1.1.2 |
| Detectable warning depth at curb ramps / many locations | 36 inches (914 mm) minimum depth in direction of travel (with listed exceptions) | § 11B‑705.1.2.2 / 11B‑705.1.2 |
| Platform edge detectable width | 24 inches (610 mm) wide and full length of public use areas | § 11B‑705.1.2.1 |
| Detectable directional texture (transit) — bar height/profile | Raised bars 0.1 in (2.5 mm) tapering to 0.04 in (1.0 mm); bars 0.2 in (5.1 mm) above surface; bars 1.3 in (33 mm) wide; spacing 3 in (76 mm) center‑to‑center | § 11B‑705.2 |
| Color / contrast | Preferably yellow (approx. FS 33538) or 70% minimum visual contrast with adjacent walking surfaces (with listed exceptions) | § 11B‑705.1.1.3 / 11B‑705.1.1.3.1–.3.2 |
| Resiliency / sound-on-cane | Detectable warnings shall differ from adjoining surfaces in resiliency or sound‑on‑cane contact (exceptions apply at some curb ramps/islands) | § 11B‑705.1.1.4 |
(These Title 24 sections are the specific, prescriptive rules the CRSC requires products to meet per § 12-11A.203 / § 12-11B.203.)
How CRSC and Title 24 fit together (practical rule)
- The CRSC establishes the approval/administration, testing entity, recertification, and product‑uniformity rules (Ch. 12‑11A/12‑11B). For the specific geometry, color, spacing, and installation depths you must look to Title 24 (Chapter 11B sections referenced above). Both must be satisfied: CRSC product approval process + Title 24 technical specs.
Exceptions & special cases
- Residential installations: evaluation of products/surfaces for residential housing is done in consultation with the Department of Housing and Community Development (per the CRSC). § 12-11A.205 / § 12-11B.205.
- Pre‑2001 installations / replacements: Title 24 contains exceptions for replacement of less than a stated percentage and existing installations that comply with prior codes — these Title 24 exceptions affect when full compliance is required (see § 11B‑705 exceptions).
- Certain curb‑ramp resiliency requirement exceptions: detectable warnings at curb ramps, islands, or cut‑through medians are excepted from the resiliency/sound‑on‑cane requirement in § 11B‑705.1.1.4.
If a specific exception or special case is not addressed in the CRSC excerpts we retrieved, do not assume it exists — check the cited Title 24 sections and the full CRSC chapter for detailed exceptions.
Common mistakes
- Assuming CRSC gives different geometry/specifications — it does not: the CRSC defers the technical specs to Title 24. The common error is to treat the CRSC as a “standalone” technical spec rather than the approval/administration overlay that points to Title 24. See § 12-11A.203 / § 12-11B.203.
- Installing a product without independent‑entity evaluation or without DSA‑AC approval (CRSC requires independent evaluation for installations after 1/1/2001). § 12-11A.205 / § 12-11B.205.
- Using non‑approved colors or insufficient contrast: Title 24 requires yellow or 70% minimum contrast unless an exception applies — verify § 11B‑705.1.1.3.
- Confusing detectable directional texture (used at transit boarding platforms) with standard truncated‑dome detectable warnings — the two have distinct profiles and placement rules; see § 11B‑705.2 and § 11B‑705.1.
Worked example — curb ramp at a public sidewalk
Scenario: You are specifying detectable warnings for a new perpendicular curb ramp at a city sidewalk that connects to a crosswalk.
CRSC administrative requirement: Because the product will be installed after 1/1/2001, the product must be evaluated by an independent entity selected by DSA‑AC and be approved under the CRSC approval process. § 12-11A.205 / § 12-11A.206.
Technical specification (Title 24): The detectable warning surface at a perpendicular curb ramp must extend 36 inches (914 mm) in the direction of travel and occupy the full width of the ramp run less 2 inches per side (excluding flared sides). Confirm dome geometry: base diameter 0.90–0.92 in, top diameter 0.45–0.47 in, height 0.20 in, center‑to‑center spacing 2.3–2.4 in. See § 11B‑705.1.2.2 and § 11B‑705.1.1.1–.2.
Color/contrast: Provide yellow detectable surface per Title 24 or ensure 70% minimum visual contrast with adjacent walking surfaces (or provide the required 1‑inch contrasting strip if meeting the alternate exception). See § 11B‑705.1.1.3.
Final check: Confirm the product’s independent entity report, the product’s two‑year recertification status, and that the installed dimensions match Title 24 tolerances before acceptance. (CRSC requirement + Title 24 specs.)
Related provisions (CRSC and Title 24 references)
- § 12-11A.202 / § 12-11B.202 — Scope: product/test methods for detectable warnings and directional surfaces.
- § 12-11A.203 / § 12-11B.203 — CRSC requirement that products comply with CCR Title 24 (California Building Code).
- § 12-11A.205 / § 12-11B.205 — Evaluation by independent entity (DSA‑AC selection).
- § 12-11A.206 / § 12-11B.206 — Two‑year approval/recertification requirement.
- § 12-11A.209–211 / § 12-11B.209–211 — Product uniformity, significant degradation threshold (≥ 90%), and selection criteria for independent entity.
- Title 24 (California Building Code), Chapter 11B: § 11B‑705 (Detectable warnings & detectable directional texture), § 11B‑247 (detectable warnings & directional texture locations) — used by the CRSC to set the technical specs.
If you need the full, verbatim text of any CRSC section or the full Title 24 detail cited here, I can pull the exact code excerpts for the specific sections you want to see.
Code references
Grounded in the retrieved California Referenced Standards Code — click a citation to read the verbatim passage:
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 § 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 § 11B-705.1.2.5 High relevance — show source text
11B-705.1.2.5 Blended transitions. Detectable warnings at blended transitions shall be 36 inches (914 mm) in depth and extend the entirety of the transition separating the walk or sidewalk from the vehicular way.
11B-705.1.2.6 Reflecting pools. When detectable warnings are provided at reflecting pools, it shall be 24 inches (610 mm) mini- mum and 36 inches (914 mm) maximum in width.
11B-705.1.2.7 Track crossings. Detectable warnings at track crossings shall be 36 inches (914 mm) in the direction of pedestrian travel and extend the full width of the circulation path.
11B-705.2 Detectable directional texture. Detectable directional texture at transit boarding platforms shall comply with Figure 11B-705.2 and shall be 0.1 inch (2.5 mm) in height that tapers off to 0.04 inch (1.0 mm), with bars raised 0.2 inch (5.1 mm) from the surface. The raised bars shall be 1.3 inches (33 mm) wide and 3 inches (76 mm) from center-to-center of each bar. This surface shall differ from adjoining walking surfaces in resiliency or sound-on-cane contact. The color shall be yellow and approximate FS 33538 of Federal Standard 595C. This surface will be placed directly behind the yellow detectable warning texture specified in Section 11B- 705.1.2.1, aligning with all doors of the transit vehicles where passengers will embark. The width of the directional texture shall be equal to the width of the transit vehicle’s door opening. The depth of the texture shall not be less than 36 inches (914 mm).
FIGURE 11B-705.2 — DETECTABLE DIRECTIONAL TEXTURE
11B-705.3 Product approval. Only approved DSA-AC detectable warning products and directional surfaces shall be installed as provided in the California Code of Regulations (CCR), Title 24, Part 1, Chapter 5, Articles 2, 3 and 4. Refer to CCR Title 24, Part 12, Chapter 11B, Section 12-11B.205 for building and facility access specifications for product approval for detectable warning products and direc- tional surfaces.
SECTION 11B- 706 — ASSISTIVE LISTENING SYSTEMS
11B- 706.1 General. Assistive listening systems required in assembly areas, conference and meeting rooms shall comply with Section 11B- 706 .
11B- 706.2 Receiver jacks. Receivers required for use with an assistive listening system shall include a [1] / 8 inch (3.2 mm) standard mono jack.
11B- 706.3 Receiver hearing-aid compatibility. Receivers required to be hearing-aid compatible shall interface with telecoils in hearing aids through the provision of neckloops.
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CRSC § 1009.12 High relevance — show source text
Emergency exit and panic hardware.
|SFM|Part 9, Section 1009.12| |Chapter 12-11A,
12-11B|Detectable warning products and directional
surfaces|DSA|Part 2, Sections 1112A.9, 1116A.5, 11B-247,
11B-406.5.12, 11B-705, 11B-810.5.2| |Chapter 12-12|Reserved||| |Chapter 12-13|Standards for insulating material|CA/SFM|Part 2.5, Section R302.10.1
Part 6, Section 110.8
Part 9, Section 720, Table 721.1(1)
Part 11, Section A5.504.4.8| |Chapter 12-16-1|California standard for earthquake-actuated
automatic gas shutoff systems|DSA|Part 2, Chapters 16 and 16A
Part 5, Section 1211.8| |Chapter 12-16-2|California standard for residential excess flow
actuated automatic gas shutoff valves|DSA|Part 5, Section 1209.1| |Chapter 12-31C|Radiation shielding|DPH|Part 2, Section 3102C| |Chapter 12-71|Air filters|SFM|Part 4, Sections 401.2, 509.2.3, 509.2.3.4
Part 6, Section 120.1| |Chapter 12-72-1|Protective signaling systems.
Standard test procedures.|SFM|| |Chapter 12-72-2|Protective signaling systems. Single-and
multiple-station fire alarm devices
mechanically operated type.|SFM|| |Chapter 12-72-3|Protective signaling systems. Smoke detectors,
combustion products type.|SFM||2025 CALIFORNIA REFERENCED STANDARDS CODE ix
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12-1 ADMINISTRATION
RESERVED
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12-3 RELEASING SYSTEMS FOR SECURITY BARS IN DWELLINGS
(This standard includes provisions of Underwriters Laboratories Subject 2326, Appendix B, dated December 17, 1999, reprinted with their permission.)
INTRODUCTION
SECTION 12-3-1—SCOPE
12-3-1.1 These requirements cover releasing systems for bars, grilles, mesh, glazing or other items intended to provide security at doors and windows required for emergency escape from dwelling units. When actuated by the occupant, the system allows the obstructions over the door or window to be moved so occupants can escape in the event of an emergency.
CRSC § 11B-109 High relevance — show source text
Exceptions:
1. Where it is technically infeasible to provide a minimum 108 inches (2743 mm) wide turning space, as measured perpendicular to the curb, the depth of detectable warnings may be reduced to 24 inches (610 mm) minimum.
2. Existing parallel curb ramps with detectable warnings in compliance with the code requirements in effect at the time of installation shall not be required to provide a minimum 36 inches (914 mm) wide portion of the turning space without detectable warnings.
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ACCESSIBILITY TO PUBLIC BUILDINGS, PUBLIC ACCOMMODATIONS, COMMERCIAL BUILDINGS AND PUBLIC HOUSING
11B-705.1.2.3 Islands or cut-through medians. Detectable warnings at pedestrian islands or cut-through medians shall be 36 inches (914 mm) minimum in depth extending the full width of the pedestrian path or cut-through less 2 inches (51 mm) maximum on each side, placed at the edges of the pedestrian island or cut-through median, and shall be separated by 24 inches (610 mm) minimum of walking surface without detectable warnings.
Exception: Detectable warnings shall be 24 inches (610 mm) minimum in depth at pedestrian islands or cut-through medians that are less than 96 inches (2438 mm) in length in the direction of pedestrian travel.
11B-705.1.2.4 Bus stops. When detectable warnings are provided at bus stop boarding and alighting areas, the detectable warn- ings shall extend the full width of the boarding/alighting area and shall be 36 inches (914 mm) minimum in depth.
11B-705.1.2.5 Blended transitions. Detectable warnings at blended transitions shall be 36 inches (914 mm) in depth and extend the entirety of the transition separating the walk or sidewalk from the vehicular way.
11B-705.1.2.6 Reflecting pools. When detectable warnings are provided at reflecting pools, it shall be 24 inches (610 mm) mini- mum and 36 inches (914 mm) maximum in width.
11B-705.1.2.7 Track crossings. Detectable warnings at track crossings shall be 36 inches (914 mm) in the direction of pedestrian travel and extend the full width of the circulation path.
11B-705.2 Detectable directional texture. Detectable directional texture at transit boarding platforms shall comply with Figure 11B-705.2 and shall be 0.1 inch (2.5 mm) in height that tapers off to 0.04 inch (1.0 mm), with bars raised 0.2 inch (5.1 mm) from the surface. The raised bars shall be 1.3 inches (33 mm) wide and 3 inches (76 mm) from center-to-center of each bar. This surface shall differ from adjoining walking surfaces in resiliency or sound-on-cane contact. The color shall be yellow and approximate FS 33538 of Federal Standard 595C. This surface will be placed directly behind the yellow detectable warning texture specified in Section 11B- _705.1.2.1, aligning with all doors of the transit vehicles where passengers will embark.
CRSC § 11B-246.7 High relevance — show source text
11B-246.7 Trails and paths. Trails, paths and nature walk areas, or portions of them, shall be constructed with gradients permitting at least partial use by wheelchair occupants. Buildings and other functional areas shall be served by paths or walks with firm and stable surfaces.
11B-246.8 Nature trails. Nature trails and similar educational and informational areas shall be accessible to individuals with vision impairments by the provision of rope guidelines, raised Arabic numerals and symbols, or other similar guide and assistance devices.
SECTION 11B-247—DETECTABLE WARNINGS AND DETECTABLE DIRECTIONAL TEXTURE
11B-247.1 Detectable warnings.
11B-247.1.1 General. Detectable warnings shall be provided in accordance with Section 11B-247.1 and shall comply with Section 11B-705.1.
11B-247.1.2 Where required. Detectable warnings shall be provided where required by Section 11B-247.1.2.
11B-247.1.2.1 Platform edges. Platform boarding edges shall have detectable warnings complying with Sections 11B-705.1.1 and 11B-705.1.2.1.
11B-247.1.2.2 Curb ramps. Curb ramps shall have detectable warnings complying with Sections 11B-705.1.1 and 11B-705.1.2.2.
11B-247.1.2.3 Islands or cut-through medians. Islands or cut-through medians shall have detectable warnings complying with Sections 11B-705.1.1 and 11B-705.1.2.3.
11B-247.1.2.4 Bus stops. Where detectable warnings are provided at bus stop boarding and alighting areas in compliance with Section 11B-810.2.3, detectable warnings shall comply with Sections 11B-705.1.1 and 11B-705.1.2.4.
11B-247.1.2.5 Blended transitions. Blended transitions shall have detectable warnings complying with Sections 11B-705.1.1 and 11B-705.1.2.5.
11B-247.1.2.6 Reflecting pools. The edges of reflecting pools shall be protected by railings, walls, warning curbs or detectable warnings complying with Sections 11B-705.1.1 and 11B-705.1.2.6.
11B-247.1.2.7 Track crossings. Where it is necessary to cross tracks to reach transit boarding platforms, detectable warnings complying with Sections 11B-705.1.1 and 11B-705.1.2.7 shall be provided.
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11B-247.2 Detectable directional texture. At transit boarding platforms, the pedestrian access shall be identified with a detectable directional texture complying with Section 11B-705.2.
CRSC § 12-7 High relevance — show source text
Fire tests of building
construction and materials.|SFM|Part 2, Section 703| |Chapter 12-7-2|Reserved||| |Chapter 12-7-3|Fire-resistive standards.
Fire testing furnaces.|SFM|Part 9, Section 3001| |Chapter 12-7-4|Fire-resistive standards.
Fire door assembly tests.|SFM|Part 2, Section 716| |Chapter 12-7-5|Fire-resistive standards. Interior
finish of decorative material.|SFM|Part 2, Chapter 8
Part 9, Chapter 8| |Chapter 12-7A|Materials and construction methods for
exterior wildfire exposure|SFM|Part 7, Chapter 5| |Chapter 12-8-1|Fire-resistive standards for fire protection|SFM|Part 2, Sections 408.14 and 435.6.2| |Appendix 12-8-1A|Calculation of the total rate of heat and carbon
monoxide or carbon dioxide production|SFM|| |Appendix 12-8-1B|Guide to mounting techniques for wall and
ceiling interior finish material|SFM|| |Chapter 12-10-1|Exits. Power-operated exit doors.|SFM|Part 2, Sections 408.4.2, 1010.1.4.2, 1010.1.9.1| |Chapter 12-10-2|Exits. Single-point latching or locking devices.|SFM|Part 2, Section 1010.2.2
Part 9, Section 1010.2.2| |Chapter 12-10-3|Exits. Emergency exit and panic hardware.
|SFM|Part 9, Section 1009.12| |Chapter 12-11A,
12-11B|Detectable warning products and directional
surfaces|DSA|Part 2, Sections 1112A.9, 1116A.5, 11B-247,
11B-406.5.12, 11B-705, 11B-810.5.2| |Chapter 12-12|Reserved||| |Chapter 12-13|Standards for insulating material|CA/SFM|Part 2.5, Section R302.10.1
Part 6, Section 110.8
Part 9, Section 720, Table 721.1(1)
Part 11, Section A5.504.4.8| |Chapter 12-16-1|California standard for earthquake-actuated
automatic gas shutoff systems|DSA|Part 2, Chapters 16 and 16A
Part 5, Section 1211.8| |Chapter 12-16-2|California standard for residential excess flow
actuated automatic gas shutoff valves|DSA|Part 5, Section 1209.1| |Chapter 12-31C|Radiation shielding|DPH|Part 2, Section 3102C| |Chapter 12-71|Air filters|SFM|Part 4, Sections 401.2, 509.2.3, 509.2.3.4
Part 6, Section 120.1| |Chapter 12-72-1|Protective signaling systems.
Standard test procedures.|SFM|| |Chapter 12-72-2|Protective signaling systems.CRSC § 11B-705.2 High relevance — show source text
The depth of the texture shall not be less than 36 inches (914 mm)._
FIGURE 11B-705.2 — DETECTABLE DIRECTIONAL TEXTURE
11B-705.3 Product approval. Only approved DSA-AC detectable warning products and directional surfaces shall be installed as provided in the California Code of Regulations (CCR), Title 24, Part 1, Chapter 5, Articles 2, 3 and 4. Refer to CCR Title 24, Part 12, Chapter 11B, Section 12-11B.205 for building and facility access specifications for product approval for detectable warning products and direc- tional surfaces.
SECTION 11B- 706 — ASSISTIVE LISTENING SYSTEMS
11B- 706.1 General. Assistive listening systems required in assembly areas, conference and meeting rooms shall comply with Section 11B- 706 .
11B- 706.2 Receiver jacks. Receivers required for use with an assistive listening system shall include a [1] / 8 inch (3.2 mm) standard mono jack.
11B- 706.3 Receiver hearing-aid compatibility. Receivers required to be hearing-aid compatible shall interface with telecoils in hearing aids through the provision of neckloops.
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11B-706.4 Sound pressure level. Assistive listening systems shall be capable of providing a sound pressure level of 110 dB minimum and 118 dB maximum with a dynamic range on the volume control of 50 dB.
11B- 706.5 Signal-to-noise ratio. The signal-to-noise ratio for internally generated noise in assistive listening systems shall be 18 dB minimum.
11B- 706.6 Peak clipping level. Peak clipping shall not exceed 18 dB of clipping relative to the peaks of speech.
SECTION 11B- 707 — AUTOMATIC TELLER MACHINES, FARE MACHINES AND POINT-OF-SALE DEVICES
11B- 707.1 General. Automatic teller machines, fare machines and point-of-sale devices shall comply with Section 11B- 707 .
11B- 707.2 Clear floor or ground space. A clear floor or ground space complying with Section 11B- 305 shall be provided.
Exception: Clear floor or ground space shall not be required at drive-up only automatic teller machines and fare machines.
11B- 707.3 Operable parts. Operable parts shall comply with Section 11B- 309. Unless a clear or correct key is provided, each operable part shall be able to be differentiated by sound or touch, without activation.
Exceptions: 1. Drive-up only automatic teller machines and fare machines shall not be required to comply with Sections 11B- 309.2 and 11B- 309.3.
CRSC § 11B-705.1.1.4. High relevance — show source text
Exception: Detectable warning surfaces at curb ramps, islands or cut-through medians shall not be required to comply with Section 11B-705.1.1.4.
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ACCESSIBILITY TO PUBLIC BUILDINGS, PUBLIC ACCOMMODATIONS, COMMERCIAL BUILDINGS AND PUBLIC HOUSING
11B-705.1.2 Locations. Detectable warnings at the following locations shall comply with Section 11B-705.1.
11B-705.1.2.1 Platform edges. Detectable warning surfaces at platform boarding edges shall be 24 inches (610 mm) wide and shall extend the full length of the public use areas of the platform.
11B-705.1.2.2 Curb ramps. Detectable warnings at curb ramps shall comply with Section 11B-705.1.2.2.
11B-705.1.2.2.1 Perpendicular curb ramps. Detectable warnings at curb ramps shall extend 36 inches (914 mm) in the direc- tion of travel. Detectable warnings shall extend the full width of the ramp run less 2 inches (51 mm) maximum on each side, excluding any flared sides. Detectable warnings shall be located so the edge nearest the curb is 6 inches (152 mm) minimum and 8 inches (203 mm) maximum from the demarcation line at the face of the curb between the curb and the gutter, street or highway.
11B-705.1.2.2.2 Parallel curb ramps. Detectable warnings at parallel curb ramps shall be located so the edge nearest the curb is 6 inches (152 mm) minimum and 8 inches (203 mm) maximum from the demarcation line at the face of the curb between the curb and the gutter, street or highway. Detectable warnings shall extend the full width of the turning space at the demarcation between the street and the sidewalk less 2 inches (51 mm) maximum on each side.
FIGURE 11B-705.1.2.2.2—PARALLEL CURB RAMPS
11B-705.1.2.2.2.1 One entrance/exit point. Where the turning space has one entrance/exit point other than the sloped ramp segments, detectable warnings shall be 36 inches (914 mm) deep, as measured perpendicular to the curb, and the turning space shall provide a minimum 36 inches (914 mm) wide portion without detectable warnings to allow pedestrian travel in the direction of the sidewalk without travelling over the detectable warnings.
Exceptions:
1. Where it is technically infeasible to provide a minimum 72 inches (1828 mm) wide turning space, as measured perpendicular to the curb, the depth of detectable warnings may be reduced to 24 inches (610 mm) minimum.
2. Existing parallel curb ramps with detectable warnings in compliance with the code requirements in effect at the time of installation shall not be required to provide a minimum 36 inches (914 mm) wide portion of the turning space without detectable warnings.
CRSC § 1.1.3.2 High relevance — show source text
Exceptions:
1. Replacement of less than 20 percent of existing detectable warnings at a single contiguous location shall be permit- ted to be in-kind at existing curb ramps, islands or cut-through medians with detectable warnings in compliance with the code requirements in effect at the time of installation.
2. Existing installed detectable warnings at curb ramps, islands or cut-through medians may comply with Section 11B- 705.1.1.3.2 in lieu of Section 11B-705.1.1.3.1.
11B-705.1.1.3.1 Detectable warning surfaces shall be yellow and approximate 33538 of SAE AMS-STD-595A.
11B-705.1.1.3.2 Detectable warning surfaces shall provide a 70 percent minimum visual contrast with adjacent walking surfaces. Contrast in percent shall be determined by:
Contrast percent = [(B1-B2)/B1] × 100 where
B1 = light reflectance value (LRV) of the lighter area and
B2 = light reflectance value (LRV) of the darker area.
Exception: Where the detectable warning surface does not provide a 70 percent minimum contrast with adjacent walking surfaces, a 1-inch (25 mm) wide minimum visually contrasting surface shall separate the detectable warning from adjacent walking surfaces. The visually contrasting surface shall contrast with both the detectable warning and adjacent walking surfaces, either light-on-dark or dark-on-light.
11B-705.1.1.4 Resiliency. Detectable warning surfaces shall differ from adjoining surfaces in resiliency or sound-on-cane contact.
Exception: Detectable warning surfaces at curb ramps, islands or cut-through medians shall not be required to comply with Section 11B-705.1.1.4.
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ACCESSIBILITY TO PUBLIC BUILDINGS, PUBLIC ACCOMMODATIONS, COMMERCIAL BUILDINGS AND PUBLIC HOUSING
11B-705.1.2 Locations. Detectable warnings at the following locations shall comply with Section 11B-705.1.
11B-705.1.2.1 Platform edges. Detectable warning surfaces at platform boarding edges shall be 24 inches (610 mm) wide and shall extend the full length of the public use areas of the platform.
11B-705.1.2.2 Curb ramps. Detectable warnings at curb ramps shall comply with Section 11B-705.1.2.2.
11B-705.1.2.2.1 Perpendicular curb ramps. Detectable warnings at curb ramps shall extend 36 inches (914 mm) in the direc- tion of travel. Detectable warnings shall extend the full width of the ramp run less 2 inches (51 mm) maximum on each side, excluding any flared sides. Detectable warnings shall be located so the edge nearest the curb is 6 inches (152 mm) minimum and 8 inches (203 mm) maximum from the demarcation line at the face of the curb between the curb and the gutter, street or highway.
CRSC § 7.62 Medium relevance — show source text
- For occupancies in Groups R-2 and R-3, within the interior conditioned space of individual dwelling units, where the open-sided walking surface is located not more than 25 feet (7.62 meters) measured vertically to the floor or walking surface below, required guards shall not be less than 36 inches (914 mm) in height measured vertically above the adjacent walking surface. 3. For occupancies in Group R-3, and within individual dwelling units in occupancies in Group R-2, where the top of the guard serves as a handrail on the open sides of stairs, the top of the guard shall be not less than 34 inches (864 mm) and not more than 38 inches (965 mm) measured vertically from a line connecting the nosings. 4. The guard height in assembly seating areas shall comply with Section 1030.17 as applicable. 5. Along alternating tread devices and ship’s ladders, guards where the top rail serves as a handrail shall have height not less than 30 inches (762 mm) and not more than 34 inches (864 mm), measured vertically from a line connecting the leading edge of the treads. 6. In Group F occupancies where exit access stairways serve fewer than three stories and such stairways are not open to the public, and where the top of the guard also serves as a handrail, the top of the guard shall be not less than 34 inches (864 mm) and not more than 38 inches (965 mm) measured vertically from a line connecting the nosings.
[BE] 1015.4 Opening limitations. Required guards shall not have openings that allow passage of a sphere 4 inches (102 mm) in diameter from the walking surface to the required guard height.
Exceptions:
- From a height of 36 inches (914 mm) to 42 inches (1067 mm), guards shall not have openings that allow passage of a sphere 4 [3] / 8 inches (111 mm) in diameter.
- The triangular openings at the open sides of a stair, formed by the riser, tread and bottom rail shall not allow passage of a sphere 6 inches (152 mm) in diameter.
- At elevated walking surfaces for access to and use of electrical, mechanical or plumbing systems or equipment, guards shall not have openings that allow passage of a sphere 21 inches (533 mm) in diameter.
- In areas that are not open to the public within occupancies in Group I-3, F, H or S, and for alternating tread devices and ship’s ladders, guards shall not have openings that allow passage of a sphere 21 inches (533 mm) in diameter.
- In assembly seating areas, guards required at the end of aisles in accordance with Section 1030.17.4 shall not have openings that allow passage of a sphere 4 inches (102 mm) in diameter up to a height of 26 inches (660 mm). From a height of 26 inches (660 mm) to 42 inches (1067 mm) above the adjacent walking surfaces, guards shall not have openings that allow passage of a sphere 8 inches (203 mm) in diameter.
- Within individual dwelling units and sleeping units in Group R-2 and R-3 occupancies, guards on the open sides of stairs shall not have openings that allow passage of a sphere 4 [3] / 8 (111 mm) inches in diameter. 7. [SFM] In lifeguard towers not open to the public, guards shall not have openings which allow passage of a sphere 21 inches (533 mm) in diameter.
CRSC § 12-10 Medium relevance — show source text
Note: Mechanisms involving dead-locking bolts may require modification in the test procedure in order to simulate the intended in-service condition. Modifications in the test procedure shall be filed for evaluation and approval before proceeding with the test.
(d) Releasing pressure. The motor-driven mechanism shall be arranged to apply not to exceed 15 pounds pressure against the cross-bar to release the door latch(es) or dead-locking bolts before the door is pushed open.
(e) Cycle test. The release mechanism and latches or dead-locking bolts shall function as intended for 100,000 cycles of operation without failure or excessive wear of the parts.
EMERGENCY OPERATION TEST
Sec. 12-10-305.
(a) Releasing pressure. The release mechanism shall be so designed that a horizontal force of 50 pounds or less will actuate the release bar and latches or dead-locking bolt when the latched or locked door is subjected to outward pressure as described in Sections 12-10-305 (c) and (d). The horizontal force shall be applied at any point along the cross-bar perpendicular to the door in the direction of swing.
(b) Test specimen. The test specimen for the emergency operation test shall be the sample which has been previously subjected to the cycle test specified in Section 12-10-304.
(c) Testing instrument. The horizontal force applied to the cross-bar shall be measured with a calibrated spring scale or other approved means.
(d) Outward pressure, single door. A hydraulic loading device or load dynamometer shall be used to apply a horizontal force of 250 pounds against the latching edge in the direction in which the door opens. The thrust load shall be applied to the stile immediately above the latching mechanism.
(e) Outward pressure, double doors. A hydraulic loading device or load dynamometer shall be used to apply a horizontal force of 250 pounds against the lock stile of each door of doors in pairs 2 inches (51 mm) in from the edge at midpoint between top and bottom of each door leaf in the direction of door swing.
(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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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
Frequently asked questions
What exactly does “must comply with Title 24” mean for manufacturers?
It means the CRSC requires that detectable warning products and directional surfaces meet the technical and installation specifications in the California Building Code (CCR, Title 24, Part 2, Chapter 11B). The CRSC provides the approval process and oversight but delegates the technical details to Title 24.
Do all detectable warnings need independent‑entity evaluation?
Yes — per the CRSC, products and surfaces installed after January 1, 2001 must be evaluated by an independent entity selected by DSA‑AC (with residential consultation with HCD). § 12-11A.205 / § 12-11B.205.
Are there regular recertification requirements?
Yes — the CRSC requires detectable warning products and directional surfaces be recertified every two years without exception. § 12-11A.206 / § 12-11B.206.
If an existing curb ramp has detectable warnings from a prior code, must it be replaced?
Title 24 includes exceptions for existing installations and limited replacements (e.g., replacement of less than a stated percentage). Check the specific Title 24 exceptions in § 11B‑705 for applicability.
Who enforces the CRSC product approval requirements?
The Division of the State Architect—Access Compliance (DSA‑AC) oversees selection of the independent entity and administration of the product approval process described in the CRSC chapters. § 12-11A.205 / § 12-11B.205.
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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