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

• 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 § 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 § 1950.5 Medium relevance — show source text

  An owner that is subject to a requirement established pursuant to this paragraph that is required to grant a tenant’s request for a reasonable accommodation relating to the tenant’s physical disability, after complying with any requirement to engage in nteractive process with the tenant, including Sections 12177 to 12180, inclusive, of Title 2 of the California Code of Regulations, shall allow the tenant to retain their lease at the same rental rate and terms of the existing lease if all of the following apply:

  (i) The move is determined to be necessary to accommodate the tenant’s physical disability related to mobility.

  (ii) There is no operational elevator that serves the floor othe tenant’s current dwelling or unit.

  (iii) The new dwelling or unit is in the same building or on the same parcel with at least four other units and shares the same owner.

  (iv) The new dwelling or unit does not require renovation to comply with applicable requirements of the Health and Safety Code.

  (v) The plicable rent control board or authority determines that the owner will continue to receive a fair rate of return or offers an administrative procedure ensuring a fair rate of return for the new unit.

  (vi) The tenant, who is not subject to eviction for nonpayment and who has a permanent physical disability as defined in subdivision (m) of Section 12926 of the Government Code and that is related to mobility, provides the owner a written request to move into an available comparable or smaller unit located on an accessible floor of the property prior to that unit becoming available.

  (B) Any security deposit paid by the tenant in connection with their rental of the dwelling or unit being vacated shall be handled in accordance with Section 1950.5 upon the tenant’s move pursuant to this paragraph.

  (C) This paragraph shall not apply unless all of the tenants on the lease ree to move to the available comparable or smaller unit located on an accessible floor of the property pursuant to the request of the tenant with the physical disability.

  (D) For purposes of this paragraph, “comparable or smaller unit” means a dwelling or unit that has the same or less than the number of bedrooms and bathrooms, square footage, and parking spaces as the ubeing vacated.

  (E) This paragraph shall not apply if the owner, or their spouse, domestic partner, children, grandchildren, parents, or grandparents, intend to occupy the available comparable or smaller unit located on an accessible floor of the property.

  (F) The requirements of this paragraph shall be in addition to those of any other fair housing law, including, but not limited to, the California Fair Employment and Housing Act (Part 2.8 (commencing with Section 12900) of Division 3 of Title 2 of the Government Code), the Unruh Civil Rights Act (Section 51), the federal Fair Housing Act (42 U.S.C. Sec. 3601 et seq.), and any implementing regulations thereunder.

  (G) This paragraph shall not be construed to prevent owners of residential real property from granting reasonable accommodations to change housing units and retain the existing lease at the same rental rate and terms in order to accommodate any disability, as defined in subdivision (m) of Section 12926 of the Government Code.

  (b) Subdivision (a) applies to, and includes, renewal of the initial hiring by the same tenant, lessee, authorized subtenant, or authorized sublessee for the entire period of their occupancy at the rental rate established for the initial hiring. (c) The rental rate of a dwelling or unit whose initial rental rate is controlled by ordinance or charter provision in effect on January 1, 1995, shall, until January 1, 1999, be established in accordance with this subdivision.

• CRSC § 105.6 Medium relevance — show source text

  INDEX

  Unlimited Area Buildings 507 Unsafe Structures and Equipment (see Structures, Unsafe) 116 Appeals 113, Appendix B Revocation of permit 105.6 Stop work orders 115 Utilities disconnection 112.3

  Unstable Materials 307.3, Table 414.2.5.1, Table 414.5.1, Table 415.6.5, 415.7.1, 415.9 Unusable Space 711.2.6 Use and Occupancy Chapter 3 Accessory 508.2 Classification 302.1

  Detailed requirements based on occupancy and use Chapter 4 Incidental uses 509, Table 509.1 Mixed 508.3, 508.4 Use designation 302.2 Utilities 112

  Service connection 112.1

  Service disconnection 112.3

  Temporary connection 112.2 Utility and Miscellaneous Occupancy (Group U) 312 Accessibility Chapters 11A and 11B Agricultural buildings Appendix C Area 503, 505, 506, 507, 508 Flood provisions Appendix G Height 503, 504, 508 Incidental uses 509

  Live loads Table 1607.1 Means of egress Exit signs 1013.1 Stairway, exit access 1019 Mixed occupancies 508.3, 508.4 Special provisions Private garages and carports 406.3 Residential aircraft hangars 412.4 Sprinkler protection 903.2.11 Travel distance 1006.2.1, 1006.3,

  1017.1 UV Germicidal Irradiation Systems

  1211

  Valuation or Value (see Fees, Permit) 109.3 Vapor Diffusion Port 202 Vapor Retarders 1202.3, 1404.3, 1404.3.2 Vegetative Artificial decorative 419, 419.1 Vegetative roofs 1505.10, 1507.15 Vehicle Barrier 1607.11 Vehicle Barrier Systems 406.4.2, 1607.11 Vehicle Show Rooms 304 Vehicular Fueling 406.7 Vehicular Gates 3110 Vehicular Repair 406.8

  Veneer Cement plaster 1404.16, 1411 Fastening 1404.5 Fiber-cement siding 1404.17, 1411 Glazing 1404.13, 1411 Masonry, adhered 1404.11, 2101.2.1, 2103.2.4 Masonry, anchored 1404.7, 1411, 2101.2.1

  Metal 1404.12

  Plastic 1411, 2605 Slab-type 1404.9, 1411

  Testing Automatic fire-extinguishing systems 904.4

  Automatic water mist systems 904.11.3 Building official required 104.2.3.6 Carbon dioxide systems 904.8 Clean agent system 904.10 Dry chemical systems 904.6 Emergency and standby power 2702.4 Fire alarm systems 907.7, 907.8 Fire pumps 913.5 Fire-resistant materials 703.2

• CRSC § 4.3 Medium relevance — show source text

  (A) In a jurisdiction that controls by ordinance or charter provision the rental rate for a dwelling or unit, an owner who terminates or fails to renew a contract or recorded agreement with a governmental agency that provides for a rent limitation to a qualified tenant may not set an initial rent for three years following the date of the termination or nonrenewal of the contract or agreement. For any new tenancy established during the three-year period, the rental rate for a new tenancy established in that vacated dwelling or unit shall be at the same rate as the rent under the terminated or nonrenewed contract or recorded agreement with a governmental agency that provided for a rent limitation to a qualified tenant, plus any increases authorized after the termination or cancellation of the contract or recorded agreement.

  (B) Subparagraph (A) does not apply to any new tenancy of 12 months or more duration established after January 1, 2000, pursuant to the owner’s contract or recorded agreement with a governmental agency that provides for a rent limitation to a qualified tenant, unless the prior vacancy in that dwelling or unit was pursuant to a nonrenewed or canced contract or recorded agreement with a governmental agency that provides for a rent limitation to a qualified tenant as set forth in that subparagraph.

  (2) The owner has otherwise agreed by contract with a public entity in consideration for a direct financial contribution or any other forms of assistance specified in Chapter 4.3 (commencing with Section 65915) of Division 1 of Title 7 of the Government Code.

  (3) The initial rental rate for a dwelling or unit whose initial rental rate is controlled by an ordinance or charter provision in effect on January 1, 1995, may not until January 1, 1999, exceed the amount calculated pursuant to subdivision (c).

  (4) (A) Notwithstanding any other law, for a dwelling or unit subject to an ordinance or charter provision that controls the rental rate of the dwelling or unit, the jurisdiction that adopted the ordinance or charter provision may require the owner of the residential real property to permit a tenant who is not subject to eviction for nonpayment and who has a permanent physical disability as defined in subdivision (m) of Section 12926 of the Government Code and that is related to mobility to move to an available comparable or smaller unit located on an accessible floor of the property. An owner that is subject to a requirement established pursuant to this paragraph that is required to grant a tenant’s request for a reasonable accommodation relating to the tenant’s physical disability, after complying with any requirement to engage in nteractive process with the tenant, including Sections 12177 to 12180, inclusive, of Title 2 of the California Code of Regulations, shall allow the tenant to retain their lease at the same rental rate and terms of the existing lease if all of the following apply:

  (i) The move is determined to be necessary to accommodate the tenant’s physical disability related to mobility.

  (ii) There is no operational elevator that serves the floor othe tenant’s current dwelling or unit.

  (iii) The new dwelling or unit is in the same building or on the same parcel with at least four other units and shares the same owner.

  (iv) The new dwelling or unit does not require renovation to comply with applicable requirements of the Health and Safety Code.

  (v) The plicable rent control board or authority determines that the owner will continue to receive a fair rate of return or offers an administrative procedure ensuring a fair rate of return for the new unit.

  (vi) The tenant, who is not subject to eviction for nonpayment and who has a permanent physical disability as defined in subdivision (m) of Section 12926 of the Government Code and that is related to mobility, provides the owner a written request to move into an available comparable or smaller unit located on an accessible floor of the property prior to

• CRSC § 100.0 Medium relevance — show source text

  2025 CRSC Reference Standard Code

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  PREFACE

  This document is Part 12 of thirteen parts of the official triennial compilation and publication of the adoptions, amendments and repeal of administrative regulations to California Code of Regulations, Title 24, also referred to as the California Building Standards Code. This part is known as the California Referenced Standards Code.

  The California Building Standards Code is published in its entirety every three years by order of the California legislature, with supplements published in intervening years. The California legislature delegated authority to various state agencies, boards, commissions and departments to create building regulations to implement the State’s statutes. These building regulations, or standards, have the same force of law, and take effect 180 days after their publication unless otherwise stipulated. The Califor- nia Building Standards Code applies to occupancies in the State of California as annotated.

  A city, county, or city and county may establish more restrictive building standards reasonably necessary because of local climatic, geological or topographical conditions. Findings of the local condition(s) and the adopted local building standard(s) must generally be filed with the California Building Standards Commission (or other filing if indicated) to become effective, and may not be effective sooner than the effective date of this edition of the California Building Standards Code . Local building standards that were adopted and applicable to previous editions of the California Building Standards Code do not apply to this edition without appropriate adoption and the required filing.

  The referenced standards contained in Part 12 are developed by the state agencies listed herein. The Part 12 Cross Reference Table herein identifies the state agency to which the standard applies, the subject of the standard and the provisions in other parts of Title 24 where the application of the standard is required.

  Should you find publication (e.g., typographical) errors or inconsistencies in this code or wish to offer comments toward improving its format, please address your comments to:

  California Building Standards Commission 2525 Natomas Park Drive, Suite 130 Sacramento, CA 95833-2936

  Phone: (916) 263-0916 Email: cbsc@dgs.ca.gov

  Web page: www.dgs.ca.gov/bsc

  ACKNOWLEDGMENTS

  The 2025 California Building Standards Code (Code) was developed through the outstanding collaborative efforts of the Department of Housing and Community Development, Division of the State Architect, Office of the State Fire Marshal, Department of Health Care Access and Information, California Energy Commission, California Department of Public Health, California State Lands Commission, Board of State and Community Corrections, Department of Water Resources, State Historical Building Safety Board, Department of Consumer Affairs, State Librarian, Department of Food and Agriculture, and the California Building Standards Commission (Commission).

  This collaborative effort included the assistance of the Commission’s Code Advisory Committees and many other volunteers who worked tirelessly to assist the Commission in the production of this Code.

  Governor Gavin Newsom

  Members of the California Building Standards Commission

  Secretary Amy Tong – Chair Rajesh Patel – Vice-Chair

• CRSC § 6633.5 Medium relevance — show source text

  serves as an addendum to the 2025 ADU Handbook to summarize and account for

  recent legislation that amended State ADU Law.

  Changes to State ADU Law

  Assembly Bill (AB) 1154

  AB 1154 (Chapter 507, Statutes of 2025) made various changes to State ADU Law (Gov. Code, § 66333) regarding JADUs and goes into effect on January 1, 2026. This bill:

  Specifies that if a JADU has shared sanitation facilities with the primary structure, owner-occupancy will be required. If the JADU does not have shared sanitation facilities, owner-occupancy will not be required (Gov. Code, § 66333, subd. (b)).

  Requires that JADUs can no longer be used as short-term rentals and, if rented, must now be rented for longer than 30 days (Gov. Code, § 66333, subd. (g)).

  Senate Bill (SB) 9

  SB 9 (Chapter 510 Statutes of 2025) made various changes to State ADU Law (Gov. Code, § 66326) regarding requirements for local jurisdictions when submitting ordinances to HCD and goes into effect on January 1, 2026. This bill:

  Clarifies that if a local agency fails to submit an adopted ADU ordinance to HCD within the 60-day timeline or fails to respond to HCD’s findings regarding its ordinance within the 30-day timeline, that ordinance is null and void and the local agency must only apply State ADU Law when permitting ADUs (Gov. Code, § 66326, subd. (d)).

  SB 543

  SB 543 (Chapter 520, Statutes of 2025) made various changes to State ADU Law (Gov. Code, §§ 66311, 66313, 66317, 66320, 66323; 66324; 66327; 66325; 66332 and added

  56

  sections 6633.5;66335.5; and 66339.5) regarding requirements for local jurisdictions when submitting ordinances to HCD and goes into effect on January 1, 2026. This bill:

  Revises the definition of a “junior accessory dwelling unit” to require the size of a JADU to be no more than 500 square feet of interior livable space (Gov. Code, § 66313, subd. (d)).

  Expands HCD’s authority over Chapter 13 of Division 1 of Title 7 of the Government Code, including but not limited to review, adopt, amend, or repeal guidelines to additionally grant that authority with respect to terms, references, and standards for JADUs (Gov. Code, § 66311).

  Revises the limitations on impact fees to, instead, prohibit impact fees upon the development of an ADU that has 750 square feet of interior livable space or less or JADU that has 500 square feet of interior livable space or less, and to require that any impact fee on an ADU that has more than 750 square feet of interior livable space be charged proportionately in relation to the square footage of the primary dwelling unit (Gov. Code, § 66311.5, subds. (a) – (d)).

• CRSC § 1102.3 Medium relevance — show source text

  Allowable quantities . . . . . . . . . . . . . . . . . . Table 1102.3

  Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203.0

  – B –

  BAFFLE PLATE . . . . . . . . . . . . . . . . . . . . 204.0, 509.2.2.1,

  509.2.2.3, 513.2.4.2, 515.1.1.4

  BALANCING, HVAC . . . . . . . . . . . . . . . . . . . 314.0, E 502.3

  E 503.6.5.3–E 503.6.5.3.2

  BLEED LINES . . . . . . . . . . . . . . . . . . . . . . . 902.15, 1308.14

  BOARD OF APPEALS . . . . . . . . . . . . . . . . . . . . . . . . . 107.0

  BOILER

  Clearance for access. . . . . . . . . . . . . . . . . . . . . . 1010.0

  Clearance for connectors . . . . . . . . . . . . Table 802.7.3.3

  Closet or alcove installation . . . . . . . . . . . . . . . . . 303.2

  Combustion regulators . . . . . . . . . . . . . . . . . . . . 1009.0

  Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1003.2

  Control diagram. . . . . . . . . . . . . . . . . . . . . . . . . . 1012.1

  Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204.0

  General requirements. . . . . . . . . . . . . . . . . . Chapter 10

  In hydronic systems . . . . . . . . . . . . . . . . . . . . . . . 1207.2

  Inspections and tests. . . . . . . . . . . . . . . . . . . . . . 1013.0

  Low-water cutoff . . . . . . . . . . . . . . . . . . . . . . . . . 1008.0

  Mounting of. . . . . . . . . . . . . . . . . . . . . . 1001.5, 1001.5.1

  Operation and maintenance . . . . . . . . . . . . . . . . 1014.0

  Permit Fees . . . . . . . . . . . . . . . . . . . . . . . . . Table 104.5

  Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1005.0

• CRSC § 405.7 Medium relevance — show source text

  Stairways, exit access 1019 Underground buildings 405.7 Exit Discharge (see Means Of Egress) 1023.12.1, 1023.3, 1024.4, 1028, 1029 Atrium 404.11

  Barriers 1023.8

  Courts 1029

  Exit passageway 1024.4 Horizontal exit 1028.2

  Lobbies 1028.2

  Marquees 3106.4 Public way 1028.5 Termination 1023.3

  Vestibules 1028.2 Exit Signs 1013 Accessibility 1013.4 Floor level exit signs 1013.2 Group R-1 1013.2 Illumination 1013.3, 1013.5, 1013.6 Required 1013.1 Special amusement buildings 411.4 Explosive Table 414.5.1, Table 415.6.5 Detached building 415.6.5, 415.8 Explosion control 414.5.1 Exposure Category (See Wind Load) 1609.4 Exterior Areas for Assisted Rescue

  Requirements 1009.7 Signage 1009.9, 1009.10, 1009.11 Where required 1009.2 Exterior Insulation and Finish Systems (EIFS) 1407 Special inspection 1705.17

  INDEX

  Exterior Wall (see Walls, Exterior) 107.2.4, Table 601, 602, 705, Chapter 7A, Chapter 14 Factored Load 1604.2 Factory Occupancy (Group F) 306 Alarm and detection 907.2.4

  Area 503, 503.1.1, 505, 506, 507, 508 Equipment platforms 505.3 Groups Low-hazard occupancy 306.3 Moderate-hazard occupancy 306.2 Height 503, 504, 505, 508 Incidental uses 509

  Interior finishes Table 803.13, 804 Live load Table 1607.1 Means of Egress Aisles 1018.5

  Dead end corridor 1020.5

  Stairway, exit access 1019 Travel distance 1006.2, 1006.3, 1017.2, 1017.2.2, 1006.2.1 Mixed occupancies 508.2, 508.3, 508.4 Plumbing fixtures Chapter 29 Risk category Table 1604.5 Sprinkler protection 903.2.4 Unlimited area 507.3, 507.4, 507.5 Farm Buildings Table 1604.3, Appendix C Fees, Permit 109 Refunds 109.6

  Related fees 109.5 Work commencing before issuance 109.4

• California Referenced Standards Code Medium relevance — show source text

  ** No. A local agency cannot impose a deed restriction on an ADU. Government Code section 66315 states, “Section 66314 establishes the maximum standards that a local agency shall use to evaluate a proposed accessory dwelling unit on a lot that includes a proposed or existing single-family dwelling. No additional standards, other than those provided in Section 66314, shall be used or imposed, including an owner-occupant requirement, except that a local agency may require that the property may be used for rentals of terms 30 days or longer.” Section 66314, subdivision (b)(1) allows for local objective standards, but the examples provided all relate to design and development standards (e.g., parking, height, setback, landscape, maximum size of a unit). A deed restriction is not such a standard and thus cannot be imposed.

  Can a deed restriction be imposed on a JADU? Yes. A local agency may adopt an ordinance for the creation of JADUs (Gov. Code, § 66333). That ordinance must “[r]equire the recordation of a deed restriction” that includes only a prohibition on the sale of the JADU separate from the sale of the single-family residence and a restriction on the size and attributes of the JADU that conforms with state law (Gov. Code, § 66333, subds. (c)(1), (c)(2)).

  Fees

  What types of fees are considered impact fees? Impact fees charged for the construction of ADUs must be determined in accordance with the Mitigation Fee Act and include any monetary exaction other than a tax or special assessment that is charged by a local agency in connection with the approval of an ADU for the purpose of defraying all or a portion of the cost of public facilities relating to the ADU. (Gov. Code, §§ 66324, subd. (a); 66000.) A local agency, special district, or water corporation shall not consider ADUs as a new residential use for the purposes of calculating connection fees or capacity charges for utilities, including water and sewer services. However, these provisions do not apply to ADUs that are constructed concurrently with a new single-family home. (Gov. Code, § 66324, subds. (b), (d).)

  Can impact fees be charged for an ADU less than 750 square feet? No. An ADU is exempt from incurring impact fees from local agencies, special districts, and water corporations if it is less than 750 square feet. If an ADU is 750 square feet or larger, impact fees shall be charged proportionately in relation to the square footage of the ADU to the square footage of the primary dwelling unit. (Gov. Code, § 66324 subd. (c)(1).) In this specific instance, impact fees also include Quimby fees specified in Government Code section 66477 (Gov. Code, § 66324 subd. (c)(2)).

  For ADUs that include a 150 square-foot exterior expansion, the 150 square feet count towards the 750 square-foot limit. For example, a 700 square-foot interior conversion ADU with

  22

  a 150 square-foot exterior expansion for ingress and egress would count as an 850 squarefoot ADU for the purposes of calculating fees, thus triggering the proportionate fee requirement of Government Code section 66324, subdivision (c).

• CRSC § 9-0 Medium relevance — show source text

  000|9-0|10-1|7-9|8-0|7-3|6-6|6-1|5-0|4-11| |16i|2-#4
  1-#6|60,000|11-5|13-10|9-2|9-8|8-3|7-2|6-6|5-2|5-1| |16i|Center distance_A_m, n|Center distance_A_m, n|1-6|1-11|1-2|1-3|1-0|0-10|0-8|STL|STL| |20i|Span without stirrupsk, l|Span without stirrupsk, l|4-10|5-5|4-5|4-7|4-3|4-0|3-11|3-7|3-7| |20i|1-#4|40,000|7-0|8-1|6-3|6-5|5-10|5-3|4-11|4-1|3-11| |20i|1-#4|60,000|8-7|9-10|7-7|7-10|7-1|6-5|6-0|4-11|4-10| |20i|1-#5|40,000|8-9|10-1|7-9|8-0|7-3|6-6|6-1|5-1|4-11| |20i|1-#5|60,000|10-8|12-3|9-6|9-10|8-10|8-0|7-5|6-2|6-0| |20i|2-#4
  1-#6|40,000|9-10|11-4|8-9|9-1|8-2|7-4|6-10|5-8|5-7| |20i|2-#4
  1-#6|60,000|12-0|13-10|10-8|11-0|9-11|9-0|8-4|6-8|6-6| |20i|2-#5|40,000|12-3|14-1|10-10|11-3|10-2|8-11|8-1|6-6|6-4| |20i|2-#5|60,000|14-0|17-6|11-8|12-3|10-6|9-1|8-4|6-8|6-6| |20i|Center distance_A_m, n|Center distance_A_m, n|1-10|2-5|1-5|1-7|1-3|1-0|0-11|STL|STL|

  6-150 2025 CALIFORNIA RESIDENTIAL CODE

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

  WALL CONSTRUCTION

  |TABLE R608.8(7)—MAXIMUM ALLOWABLE CLEAR
  SPANS FOR 8-INCH-THICK WAFFLE-GRID LINTELS IN LOAD-BEARING WALLSa, b, c, d, e, f,

• CRSC § 65852.2 Medium relevance — show source text

  [BE] ACCESSIBLE MEANS OF EGRESS. A continuous and unobstructed way of egress travel from any accessible point in a building or facility to a public way.

  ACCESSIBLE ROUTE. [DSA-AC & HCD 1-AC] A continuous unobstructed path connecting accessible elements and spaces of an accessible site, building or facility that can be negotiated by a person with a disability using a wheelchair, and that is also safe for and usable by persons with other disabilities. Interior accessible routes may include corridors, hallways, floors, ramps, elevators and lifts. Exterior acces- sible routes may include parking access aisles, curb ramps, crosswalks at vehicular ways, walks, ramps and lifts.

  ACCESSIBLE SPACE. [DSA-AC & HCD 1-AC] A space that complies with the accessibility provisions of this code.

  [BE] ACCESSIBLE UNIT. A dwelling unit or sleeping unit that complies with this code and the provisions for Accessible units in ICC A117.1.

  ACCESSORY DWELLING UNIT. [HCD 1 & HCD 2] An attached or detached residential dwelling unit that provides complete independent living facilities for one or more persons and is located on a lot with a proposed or existing primary residence. Accessory dwelling units shall include permanent provisions for living, sleeping, eating, cooking and sanitation on the same parcel as the single-family or multifamily dwelling is or will be situated. (See Government Code Section 65852.2)

  2025 CALIFORNIA BUILDING CODE 2-11

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

  DEFINITIONS

  [BS] ACCREDITATION BODY. An approved, third-party organization that is independent of the grading and inspection agencies, and the lumber mills, and that initially accredits and subsequently monitors, on a continuing basis, the competency and performance of a grading or inspection agency related to carrying out specific tasks.

  ACTIVE EARTHQUAKE FAULT. [DSA-SS, DSA-SS/CC, OSHPD 1, 1R, 2, 4 & 5] A fault that has been the source of earthquakes or is recog- nized as a potential source of earthquakes, including those that have exhibited surface displacement within Holocene time (about 11,000 years) as determined by California Geological Survey (CGS) under the Alquist-Priolo Earthquake Fault Zoning Act, those included as type A or type B faults for the U.S. Geological Survey (USGS) National Seismic Hazard Maps, and faults considered to have been active in Holo- cene time by any authoritative source, federal, state or local governmental agency.

  ACTIVE EQUIPMENT/COMPONENT. [DSA-SS, DSA-SS/CC & OSHPD 1, 1R, 2, 4 & 5] Equipment/Component containing moving or rotating parts, electrical parts such as switches or relays, or other internal components that are sensitive to earthquake forces and critical to the function of the equipment.

  ADAPTABLE. [DSA-AC] Capable of being readily modified and made accessible.

  ADAPTABLE DWELLING UNIT. [HCD 1-AC] An accessible dwelling unit within a covered multifamily building as designed with elements and spaces allowing the dwelling unit to be adapted or adjusted to accommodate the user. See Chapter 11A, Division IV.