CEBC · California Existing Building Code
How are conflicts between code text and referenced standards resolved?
If a referenced standard and the CEBC disagree, follow the CEBC text. If a more-specific CEBC provision conflicts with a general one, follow the specific provision. When multiple parts of Title 24 apply, use the most restrictive requirement. If an item is listed with manufacturer conditions, those listing conditions can control for that product.
Last reviewed: July 6, 2026
What the code requires — plain English (controlling §)
When a referenced standard and the California Existing Building Code disagree, the text of the CEBC governs — i.e., use the CEBC requirement, not the referenced document. See § 1.1.7 .
When a more-specific provision conflicts with a general one, the specific provision controls. See § 1.1.7.2 .
When requirements conflict between parts of Title 24, the most restrictive requirement applies. See § 1.1.7.3 .
When there is a difference between CEBC text and a referenced standard, follow the CEBC text — unless another provision of Title 24 requires something more restrictive. (CEBC rule: CEBC text governs.)
Requirements in detail
Primary precedence rules (short list)
- CEBC text governs when there are differences between these building standards and referenced standards — § 1.1.7.1 .
- Specific provisions override general provisions when they differ — § 1.1.7.2 .
- If the CEBC conflicts with any other part of Title 24, apply the most restrictive requirement — § 1.1.7.3 .
Decision table — which requirement to use
| Decision factor | Typical values / examples | Outcome (which requirement governs) | Code Reference |
|---|---|---|---|
| Difference between CEBC text and a referenced standard | e.g., CEBC stair tread = 11 in., referenced std = 10 in. | Use the CEBC text (11 in.) | § 1.1.7.1 |
| Specific vs general provision | e.g., a chapter-specific live-load rule vs. a general live-load table | Use the specific provision | § 1.1.7.2 |
| Conflict between CEBC and another Title 24 code (more than one Title 24 part applies) | e.g., CEBC permits A, CBC requires B | Apply the most restrictive of the applicable Title 24 requirements | § 1.1.7.3 |
| Special building types (detached 1–2 family, townhouses) | Designer chooses CRC or CBC but not both unless directed | Follow the selected code per the limitation | § 1.1.7.3.1 |
How the code official fits in
- The code official has authority to determine compliance, render interpretations, and require technical evidence or reports to support an alternate approach — see § 104.2 and related duties. The code official’s determinations and requests for evidence are authorized tools when precedence is unclear in practice.
Exceptions & special cases
- Equipment listing/labeling exception: If enforcing a CEBC provision would violate the conditions of a listing (manufacturer listing or listing standard), the listing conditions govern for that equipment/appliance. (This is an express exception in the referenced-codes rules.)
- Detached one‑ and two‑family dwellings et al.: There is a special allowance that such buildings may be designed using the California Residential Code (CRC) or the California Building Code (CBC) — but not both, unless the CRC directs use of the CBC. See § 1.1.7.3.1 for the limitation.
- When Title 24 parts disagree: Even though CEBC text controls relative to outside referenced documents, if another Title 24 part applies and is more restrictive, the more restrictive Title 24 requirement prevails (not the less restrictive CEBC text). See § 1.1.7.3.
Common mistakes
- Treating a referenced standard as automatically binding when it conflicts with CEBC text (wrong — use the CEBC text). See § 1.1.7.1 .
- Applying a general code provision instead of a specific one that governs the same subject (wrong — specific controls). See § 1.1.7.2 .
- Failing to compare all applicable Title 24 parts and adopting a less-restrictive requirement (wrong — apply the most restrictive). See § 1.1.7.3 .
- Overlooking exceptions tied to listings/manufacturer instructions — enforcement that contradicts an equipment listing can be precluded by the listing conditions (see the referenced‑standards exception).
Worked example — a concrete scenario with numbers
Scenario: You are renovating an existing theater stair:
- The referenced standard (a national standard) specifies a stair tread depth of 10 in..
- The CEBC text for this type of alteration specifies stair tread depth of 11 in..
- Another Title 24 part (say, a fire‑safety chapter) sets a minimum 12 in. in one narrow set of circumstances that also applies.
Decision steps:
- Compare CEBC vs referenced standard: CEBC governs when they differ, so you must use 11 in. rather than 10 in. (apply § 1.1.7.1).
- Check for other Title 24 requirements that also apply: the fire chapter requires 12 in. in this specific case — because § 1.1.7.3 requires the most restrictive Title 24 requirement to prevail, 12 in. trumps the CEBC 11 in.
- If following the 12 in. requirement is infeasible, submit an alternate means request and supporting technical evidence to the code official; the code official may request tests or reports under their authority (see § 104.2).
Result: Design for 12 in. tread depth (most restrictive of applicable Title 24 parts).
Related provisions (CEBC and closely related)
- § 1.1.7.1 — Differences: CEBC text governs differences with referenced standards.
- § 1.1.7.2 — Specific provisions override general provisions.
- § 1.1.7.3 — Conflicts within Title 24: most restrictive prevails.
- § 1.1.7.3.1 — Special rule for detached one- and two-family dwellings and certain townhouses.
- § 104.2 — Code official duties and authority to determine compliance and require technical reports (useful when resolving real-world precedence questions).
- CEBC sections on Referenced Codes and Standards and the listing/manufacturer‑instructions exception (see related referenced‑standards rules).
Code references
Grounded in the retrieved California Existing Building Code — click a citation to read the verbatim passage:
CEBC § 101.4.8 High relevance — show source text
[OSHPD 1R, 2, 4 & 5] The provisions of the California Existing Building Code, Chapters 2, 3, 4 and 5 shall apply to all matters govern- ing the repairs, alterations, change of occupancy, additions and relocation of existing structures and portions thereof under OSHPD jurisdiction.
101.4.8 Wildland-urban interface. The provisions of Part 7, the California Wildland-Urban Interface Code shall apply to buildings and structures built in the wildland-urban interface (WUI) or a Fire Hazard Severity Zone.
SECTION 102—APPLICABILITY
[A] 102.1 General. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall be applicable. Where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern.
[A] 102.2 Other laws. The provisions of this code shall not be deemed to nullify any provisions of local, state or federal law.
[A] 102.3 Application of references. References to chapter or section numbers, or to provisions not specifically identified by number, shall be construed to refer to such chapter, section or provision of this code.
[A] 102.4 Referenced codes and standards. The codes and standards referenced in this code shall be considered to be part of the requirements of this code to the prescribed extent of each such reference and as further regulated in Sections 102.4.1 through 102.4.4.
[A] 102.4.1 Conflicts. Where conflicts occur between provisions of this code and referenced codes and standards, the provisions of this code shall apply.
[A] 102.4.2 Provisions in referenced codes and standards. Where the extent of the reference to a referenced code or standard includes subject matter that is within the scope of this code or the California Codes specified in Section 101.4, the provisions of this code or the California Codes specified in Section 101.4, as applicable, shall take precedence over the provisions in the referenced code or standard.
102.4.3 Code references. [OSHPD 1, 1R, 2, 3, 4, 5 & 6, DSA-SS & DSA-SS/CC] All reference to International Codes or other similar codes in referenced standards shall be replaced by equivalent provisions in the California Building Standards Codes.
102.4.4 Reference in standards. [OSHPD 1, 1R, 2, 3, 4, 5 & 6, DSA-SS & DSA-SS/CC] All references listed in reference standards shall be replaced by referenced standards listed in Chapter 35 of this code, where applicable, and shall include all amendments to the reference standards in this code.
[A] 102.5 Partial invalidity. In the event that any part or provision of this code is held to be illegal or void, this shall not have the effect of making void or illegal any of the other parts or provisions.
[A] 102.6 Existing structures. The legal occupancy of any structure existing on the date of adoption of this code shall be permitted to continue without change, except as otherwise specifically provided in this code, the California Existing Building Code or the Cali- fornia Fire Code .
CEBC § 1.1.7 High relevance — show source text
1.1.7 Order of precedence and use.
1.1.7.1 Differences. In the event of any differences between these building standards and the standard reference documents, the text of these building standards shall govern.
1.1.7.2 Specific provisions. Where a specific provision varies from a general provision, the specific provision shall apply.
1.1.7.3 Conflicts. When the requirements of this code conflict with the requirements of any other part of the California Building Standards Code, Title 24 the most restrictive requirements shall prevail.
1.1.7.3.1 Detached one- and two-family dwellings. Detached one- and two-family dwellings, lodging houses, live/work units, townhouses not more than three stories above grade plane in height with a separate means of egress, and their accessory structures, may be designed and constructed in accordance with the California Residential Code or the California Building Code, but not both, unless the proposed structure(s) or element(s) exceed the design limitations established in the California Residential Code, and the code user is specifically directed by the California Residential Code to use the California Building Code.
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ADMINISTRATION
1.1.8 City, county, or city and county amendments, additions or deletions. The provisions of this code do not limit the authority of city, county, or city and county governments to establish more restrictive and reasonably necessary differences to the provisions contained in this code pursuant to complying with Section 1.1.8.1. The effective date of amendments, additions or deletions to this code by a city, county, or city and county filed pursuant to Section 1.1.8.1 shall be the date filed. However, in no case shall the amendments, additions or deletions to this code be effective any sooner than the effective date of this code.
Local modifications shall comply with Health and Safety Code Section 18941.5 for Building Standards Law, Health and Safety Code Section 17958 for State Housing Law or Health and Safety Code Section 13869.7 for Fire Protection Districts.
1.1.8.1 Findings and filings. 1. The city, county, or city and county shall make express findings for each amendment, addition or deletion based upon climatic, topographical or geological conditions.
Exception: Hazardous building ordinances and programs mitigating unreinforced masonry buildings. 2. The city, county, or city and county shall file the amendments, additions or deletions expressly marked and identified as to the applicable findings. Cities, counties, cities and counties, and fire departments shall file the amendments, additions or deletions, and the findings with the California Building Standards Commission at 2525 Natomas Park Drive, Suite 130, Sacramento, CA 95833.
3. Findings prepared by fire protection districts shall be ratified by the local city, county, or city and county and filed with the California Department of Housing and Community Development, Division of Codes and Standards, P.O. Box 278180, Sacramento, CA 95827-8180 or 9342 Tech Center Drive, Suite 500, Sacramento, CA 95826-2581.
CEBC § 4.1 High relevance — show source text
R102.4 Referenced codes and standards. The codes and standards referenced in this code shall be considered part of the requirements of this code to the prescribed extent of each such reference and as further regulated in Sections R102.4.1 and R102.4.2.
Exception: Where enforcement of a code provision would violate the conditions of the listing of the equipment or appliance, the conditions of the listing and manufacturer’s instructions shall apply.
R102.4.1 Conflicts. Where conflicts occur between provisions of this code and referenced codes and standards, the provisions of this code shall apply.
R102.4.2 Provisions in referenced codes and standards. Where the extent of the reference to a referenced code or standard includes subject matter that is within the scope of this code, the provisions of this code, as applicable, shall take precedence over the provisions in the referenced code or standard.
R102.5 Partial invalidity. In the event any part or provision of this code is held to be illegal or void, this shall not have the effect of making void or illegal any of the other parts or provisions.
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DIVISION II SCOPE AND ADMINISTRATION
R102.6 Existing structures. The legal occupancy of any structure existing on the date of adoption of this code shall be permitted to continue without change, except as is specifically covered in this code, the International Property Maintenance Code or the California Fire Code, or as is deemed necessary by the building official for the general safety and welfare of the occupants and the public.
R102.6.1 Additions, alterations, change of use or repairs. Additions, alterations or repairs to any structure shall conform to the requirements for a new structure without requiring the existing structure to comply with the requirements of this code, unless otherwise stated. Additions, alterations, repairs and relocations shall not cause an existing structure to become less compliant with the provisions of this code than the existing building or structure was prior to the addition, alteration or repair. Where additions, alterations or changes of use to an existing structure result in a use, occupancy, height or means of egress outside the scope of this code, the building shall comply with the California Existing Building Code .
R102.7 Wildland-Urban Interface. The provisions of Part 7, California Wildland-Urban Interface Code shall apply to buildings and struc- tures built in the wildland-urban interface (WUI).
PART 2—ADMINISTRATION AND ENFORCEMENT
SECTION R103—CODE COMPLIANCE AGENCY
R103.1 Creation of agency. The [ INSERT NAME OF DEPARTMENT ] is hereby created and the official in charge thereof shall be known as the building official. The function of the agency shall be the implementation, administration and enforcement of the provisions of this code.
R103.2 Appointment. The building official shall be appointed by the chief appointing authority of the jurisdiction.
R103.3 Deputies. In accordance with the prescribed procedures of this jurisdiction and with the concurrence of the appointing authority, the building official shall have the authority to appoint a deputy building official, other related technical officers, inspectors and other employees. Such employees shall have powers as delegated by the building official.
SECTION R104—DUTIES AND POWERS OF THE BUILDING OFFICIAL
CEBC § 102.5 High relevance — show source text
[A] 102.5 Application of residential code. Where structures are designed and constructed in accordance with the California Residen- tial Code, the provisions of this code shall apply as follows:
- Construction and design provisions of this code pertaining to the exterior of the structure shall apply including, but not limited to, premises identification, fire apparatus access and water supplies. Where interior or exterior systems or devices are installed, construction permits required by Section 105.6 shall apply.
- Administrative, operational and maintenance provisions of this code shall apply.
[A] 102.6 Historic buildings. The provisions of this code relating to the construction, alteration, repair, enlargement, restoration, relocation or moving of buildings or structures shall not be mandatory for existing buildings or structures identified and classified by the state or local jurisdiction as historic buildings where such buildings or structures do not constitute a distinct hazard to life or property. Fire protection in designated historic buildings shall be provided with an approved fire protection plan as required in Section 1103.1.1.
[A] 102.7 Referenced codes and standards. The codes and standards referenced in this code shall be those that are listed in Chapter 80, and such codes and standards shall be considered to be part of the requirements of this code to the prescribed extent of each such reference and as further regulated by Sections 102.7.1 and 102.7.2.
[A] 102.7.1 Conflicts. Where conflicts occur between provisions of this code and referenced codes and standards, the provisions of this code shall apply.
[A] 102.7.2 Provisions in referenced codes and standards. Where the extent of the reference to a referenced code or standard includes subject matter that is within the scope of this code, the provisions of this code, as applicable, shall take precedence over the provisions in the referenced code or standard.
[A] 102.8 Subjects not regulated by this code. Where applicable standards or requirements are not set forth in this code, or are contained within other laws, codes, regulations, ordinances or bylaws adopted by the jurisdiction, compliance with applicable standards of the National Fire Protection Association or other nationally recognized fire safety standards, as approved, shall be deemed as prima facie evidence of compliance with the intent of this code. Nothing herein shall derogate from the authority of the fire code official to determine compliance with codes or standards for those activities or installations within the fire code official’s jurisdiction or responsibility.
[A] 102.9 Matters not provided for. Requirements that are essential for the public safety of an existing or proposed activity, building or structure, or for the safety of the occupants thereof, that are not specifically provided for by this code, shall be determined by the fire code official.
[A] 102.10 Conflicting provisions. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall be applicable. Where, in a specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern.
[A] 102.11 Other laws. The provisions of this code shall not be deemed to nullify any provisions of local, state or federal law.
[A] 102.12 Application of references. References to chapter or section numbers, or to provisions not specifically identified by number, shall be construed to refer to such chapter, section or provision of this code.
102.13 Wildland-urban interface. The provisions of the California Wildland-Urban Interface Code shall apply to buildings and struc- tures built in the wildland-urban interface.
CEBC § 101.5 High relevance — show source text
[A] 101.5 Additions or alterations. Additions or alterations shall be permitted to be made to any building or structure without requiring the existing building or structure to comply with all of the requirements of this code, provided that the addition or alteration conforms to that required for a new building or structure.
Exception: Provisions of this code that specifically apply to existing conditions are retroactive.
Additions or alterations shall not be made to an existing building or structure that will cause the existing building or structure to be in violation of any of the provisions of this code nor shall such additions or alterations cause the existing building or structure to become unsafe. An unsafe condition shall be deemed to have been created if an addition or alteration will cause the existing building or structure to become structurally unsafe or overloaded; will not provide adequate access in compliance with the provisions of this code or will obstruct existing exits or access; will create a fire hazard; will reduce required fire resistance or will otherwise create conditions dangerous to human life.
[A] 101.6 Maintenance. Buildings, structures, landscape materials, vegetation, defensible space or other devices or safeguards required by this code shall be maintained in conformance to the code edition under which installed. The owner or the owner’s authorized agent shall be responsible for the maintenance of buildings, structures, landscape materials and vegetation.
SECTION 102—APPLICABILITY
[A] 102.1 General. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall govern. Where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern.
[A] 102.2 Other laws. The provisions of this code shall not be deemed to nullify any provisions of local, state or federal law.
[A] 102.3 Application of references. References to chapter or section numbers, or to provisions not specifically identified by number, shall be construed to refer to such chapter, section or provision of this code.
[A] 102.4 Referenced codes and standards. The codes and standards referenced in this code shall be those that are listed in Chapter 7 and such codes and standards shall be considered as part of the requirements of this code to the prescribed extent of each such reference and as further regulated in Sections 102.4.1 and 102.4.2.
[A] 102.4.1 Conflicts. Where conflicts occur between provisions of this code and the referenced standards, the provisions of this code shall govern.
[A] 102.4.2 Provisions in referenced codes and standards. Where the extent of the reference to a referenced code or standard includes subject matter that is within the scope of this code, the provisions of this code, as applicable, shall take precedence over the provisions in the referenced standard.
[A] 102.5 Subjects not regulated by this code. Where applicable standards or requirements are not set forth in this code, or are contained within other laws, codes, regulations, ordinances or policies adopted by the jurisdiction, compliance with applicable standards of other nationally recognized safety standards, as approved, shall be deemed as prima facie evidence of compliance with the intent of this code. Nothing herein shall derogate from the authority of the code official to determine compliance with codes or standards for those activities or installations within the code official’s jurisdiction or responsibility.
CEBC § 102.4 High relevance — show source text
[A] 102.4 Referenced codes and standards. The codes and standards referenced in this code shall be considered part of the requirements of this code to the prescribed extent of each such reference and as further regulated in Sections 102.4.1 and 102.4.2.
Exception: Where enforcement of a code provision would violate the conditions of the listing of the equipment or appliance, the conditions of the listing shall govern.
[A] 102.4.1 Conflicts. Where conflicts occur between provisions of this code and referenced codes and standards, the provisions of this code shall apply.
[A] 102.4.2 Conflicting provisions. Where the extent of the reference to a referenced code or standard includes subject matter that is within the scope of this code, the provisions of this code, as applicable, shall take precedence over the provisions in the referenced code or standard.
[A] 102.5 Partial invalidity. In the event that any part or provision of this code is held to be illegal or void, this shall not have the effect of making void or illegal any of the other parts or provisions.
PART 2—ADMINISTRATION AND ENFORCEMENT
SECTION 103—CODE COMPLIANCE AGENCY
[A] 103.1 Creation of agency. The [ INSERT NAME OF DEPARTMENT ] is hereby created, and the official in charge thereof shall be known as the code official. The function of the agency shall be the implementation, administration and enforcement of the provisions of this code.
[A] 103.2 Appointment. The code official shall be appointed by the chief appointing authority of the jurisdiction.
[A] 103.3 Deputies. In accordance with the prescribed procedures of this jurisdiction and with the concurrence of the appointing authority, the code official shall have the authority to appoint a deputy code official, other related technical officers, inspectors and other employees. Such employees shall have powers as delegated by the code official.
SECTION 104—DUTIES AND POWERS OF CODE OFFICIAL
[A] 104.1 General. The code official is hereby authorized and directed to enforce the provisions of this code.
[A] 104.2 Determination of compliance. The code official shall have the authority to determine compliance with this code, to render interpretations of this code and to adopt policies and procedures in order to clarify the application of this code’s provisions. Such interpretations, policies, and procedures:
- Shall be in compliance with the intent and purpose of this code.
- Shall not have the effect of waiving requirements specifically provided for in this code.
[A] 104.2.1 Listed compliance. Where this code or a referenced standard requires equipment, materials, products or services to be listed and a listing standard is specified, the listing shall be based on the specified standard. Where a listing standard is not specified, the listing shall be based on an approved listing criteria. Listings shall be germane to the provision requiring the listing. Installation shall be in accordance with the listing and the manufacturer’s instructions, and where required to verify compliance, the listing standard and manufacturer’s instructions shall be made available to the code official.
[A] 104.2.2 Technical assistance. To determine compliance with this code, the code official is authorized to require the owner or owner’s authorized agent to provide a technical opinion and report.
[A] 104.2.2.1 Cost. A technical opinion and report shall be provided without charge to the jurisdiction.
CEBC § 102.2 High relevance — show source text
[A] 102.2 Other laws. The provisions of this code shall not be deemed to nullify any provisions of local, state or federal law.
[A] 102.3 Application of references. References to chapter or section numbers, or to provisions not specifically identified by number, shall be construed to refer to such chapter, section or provision of this code.
[A] 102.4 Referenced codes and standards. The codes and standards referenced in this code shall be those that are listed in Chapter 7 and such codes and standards shall be considered as part of the requirements of this code to the prescribed extent of each such reference and as further regulated in Sections 102.4.1 and 102.4.2.
[A] 102.4.1 Conflicts. Where conflicts occur between provisions of this code and the referenced standards, the provisions of this code shall govern.
[A] 102.4.2 Provisions in referenced codes and standards. Where the extent of the reference to a referenced code or standard includes subject matter that is within the scope of this code, the provisions of this code, as applicable, shall take precedence over the provisions in the referenced standard.
[A] 102.5 Subjects not regulated by this code. Where applicable standards or requirements are not set forth in this code, or are contained within other laws, codes, regulations, ordinances or policies adopted by the jurisdiction, compliance with applicable standards of other nationally recognized safety standards, as approved, shall be deemed as prima facie evidence of compliance with the intent of this code. Nothing herein shall derogate from the authority of the code official to determine compliance with codes or standards for those activities or installations within the code official’s jurisdiction or responsibility.
[A] 102.6 Matters not provided for. Requirements that are essential for the public safety of an existing or proposed activity, building or structure, or for the safety of the occupants thereof, which are not specifically provided for by this code, shall be determined by the code official consistent with the necessity to establish the minimum requirements to safeguard the public health, safety and general welfare.
[A] 102.7 Partial invalidity. In the event that any part or provision of this code is held to be illegal or void, this shall not have the effect of making void or illegal any of the other parts or provisions.
[A] 102.8 Existing conditions. The legal occupancy or use of any structure or condition existing on the date of adoption of this code shall be permitted to continue without change, except as is specifically covered in this code or the California Fire Code, California Building Code, California Existing Building Code or the California Residential Code, or as is deemed necessary by the code official for the general safety and welfare of the occupants and the public.
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ADMINISTRATION
PART 2—ADMINISTRATION AND ENFORCEMENT
SECTION 103—CODE COMPLIANCE AGENCY
[A] 103.1 Creation of agency. The [ INSERT NAME OF DEPARTMENT ] is hereby created and the official in charge thereof shall be known as the code official. The function of the agency shall be the implementation, administration and enforcement of the provisions of this code.
[A] 103.2 Appointment. The code official shall be appointed by the chief appointing authority of the jurisdiction.
CEBC § 304A.3.5.13 High relevance — show source text
304A.3.5.13 ASCE 41-13 Section 10.7.1.1. Modify ASCE 41-13 Section 10.7.1.1 with the following:
Monolithic Reinforced Concrete Shear Walls and Wall Segments. For nonlinear procedures, shear walls or wall segments with axial loads greater than 0.35 Po shall be included in the model as primary elements with appropriate strength and stiffness degrading properties assigned to those components subject to the approval of the enforcement agent. For linear procedures, the effects of deformation compatibility shall be investigated using moment-curvature section analyses and cyclic testing results of similar components to determine whether strengthening is necessary to maintain the gravity load-carrying capacity of that component.
Horizontal wall segments or spandrels reinforced similar to vertical wall segments or piers shall be classified as wall segments, not shear wall coupling beams, in Tables 10-19 through 10-22.
304A.3.5.14 ASCE 41-13 Section 10.12.3 Modify ASCE 41-13 Section 10.12.3 as follows:
Exception: Component actions that are deformation controlled are permitted to use their expected strengths for the accep- tance criteria.
304A.3.5.15 ASCE 41-13 Section 11.1. Modify ASCE 41-13 Section 11.1 by the following:
Scope: Unreinforced masonry walls (including unreinforced infill walls) and partitions are not permitted for General Acute Care (GAC) hospital buildings.
304A.3.5.16 ASCE 41-13 Section 14.1. Modify ASCE 41-13 Section 14.1 by the following:
Scope: For buildings located in Seismic Design Category F, verification of the interstory lateral displacements, the strength adequacy of the seismic force-resisting system and anchorage to the foundation shall be accomplished using the Nonlinear Dynamic Procedure.
304A.3.5.17 ASCE 41-13 Chapter 15 and 16. Not permitted by OSHPD.
304A.3.6 Modifications to ASCE 41-23. The text of ASCE 41-23 shall be modified as indicated in Sections 304A.3.6.1 through 304A.3.6.9.
304A.3.6.1 ASCE 41-23 Section 2.1. Modify ASCE 41-23 Section 2.1 with the following:
Seismic evaluations shall be performed for performance objective specified in Section 304A.3.4 of this code (CEBC) using proce- dure of this standard (ASCE 41-23) as follows:
1. Structural components shall be evaluated in accordance with Tier 3 systematic evaluations procedure in Chapter 6.
2. Nonstructural components shall be evaluated in accordance with Chapter 13.
Exception: For general acute care hospitals, seismic evaluation shall be permitted to be in accordance with Chapter 6 of the California Administrative Code (CAC) when required by provisions of that chapter.
304A.3.6.2 ASCE 41-23 Section 6.2. Modify ASCE 41-23 Section 6.2 with the following:
CEBC § 101.4.5 Medium relevance — show source text
[A] 101.4.5 Fire prevention. The provisions of the California Fire Code shall apply to matters affecting or relating to structures, processes and premises from the hazard of fire and explosion arising from the storage, handling or use of structures, materials or devices; from conditions hazardous to life, property or public welfare in the occupancy of structures or premises; and from the construction, extension, repair, alteration or removal of fire suppression, automatic sprinkler systems and alarm systems or fire hazards in the structure or on the premises from occupancy or operation.
[A] 101.4.6 Energy. The provisions of the California Energy Code shall apply to all matters governing the design and construction of buildings for energy efficiency.
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ADMINISTRATION
[A] 101.4.7 Existing buildings. The provisions of the California Existing Building Code shall apply to matters governing the repair, alteration, change of occupancy, addition to and relocation of existing buildings.
[OSHPD 1] The provisions of Chapters 2, 3A, 4A and 5A of the California Existing Building Code shall apply to all matters governing the repairs, alterations, change of occupancy, additions and relocation of existing structures and portions thereof under OSHPD jurisdic- tion. All references to Chapters 3, 4 and 5 of the California Existing Building Code shall be replaced by equivalent provisions in Chapters 3A, 4A and 5A.
[OSHPD 1R, 2, 4 & 5] The provisions of the California Existing Building Code, Chapters 2, 3, 4 and 5 shall apply to all matters govern- ing the repairs, alterations, change of occupancy, additions and relocation of existing structures and portions thereof under OSHPD jurisdiction.
101.4.8 Wildland-urban interface. The provisions of Part 7, the California Wildland-Urban Interface Code shall apply to buildings and structures built in the wildland-urban interface (WUI) or a Fire Hazard Severity Zone.
SECTION 102—APPLICABILITY
[A] 102.1 General. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall be applicable. Where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern.
[A] 102.2 Other laws. The provisions of this code shall not be deemed to nullify any provisions of local, state or federal law.
[A] 102.3 Application of references. References to chapter or section numbers, or to provisions not specifically identified by number, shall be construed to refer to such chapter, section or provision of this code.
[A] 102.4 Referenced codes and standards. The codes and standards referenced in this code shall be considered to be part of the requirements of this code to the prescribed extent of each such reference and as further regulated in Sections 102.4.1 through 102.4.4.
[A] 102.4.1 Conflicts. Where conflicts occur between provisions of this code and referenced codes and standards, the provisions of this code shall apply.
CEBC § 25.4 Medium relevance — show source text
with
hook embedded in mortar
jointe, f|No. 10 screw extending
through the steel framing
a minimum of three
exposed threads|Greater than 45/8 in.
between backing and
veneer|Maximum 65/8 in.
between backing and
veneer| |For SI: 1 inch = 25.4 mm.
a. All fasteners shall have rust-inhibitive coating suitable for the installation in which they are being used, or be manufactured from material not susceptible to corrosion.
b. An airspace that provides drainage shall be permitted to contain mortar from construction.
c. In Seismic Design Category D0, D1 or D2, the minimum tie fastener shall be an 8d ring-shank nail (21/2 in. × 0.131 in.).
d. Adjustable tie pintles shall include not fewer than 1 pintle leg of wire size W2.8 (MW18) with a maximum offset of 11/4 inches.
e. Adjustable tie pintles shall include not fewer than 2 pintle legs with a maximum offset of 11/4 inches. Distance between inside face of brick and end of pintle shall be a maxi-
mum of 2 inches.
f. Adjustable tie backing attachment components shall consist of one of the following: eyes with minimum wire W2.8 (MW18), barrel with minimum1/4-inch outside diameter, or
plate with minimum thickness of 0.074 inch and minimum width of 11/4 inches.|For SI: 1 inch = 25.4 mm.
a. All fasteners shall have rust-inhibitive coating suitable for the installation in which they are being used, or be manufactured from material not susceptible to corrosion.
b. An airspace that provides drainage shall be permitted to contain mortar from construction.
c. In Seismic Design Category D0, D1 or D2, the minimum tie fastener shall be an 8d ring-shank nail (21/2 in. × 0.131 in.).
d. Adjustable tie pintles shall include not fewer than 1 pintle leg of wire size W2.8 (MW18) with a maximum offset of 11/4 inches.
e. Adjustable tie pintles shall include not fewer than 2 pintle legs with a maximum offset of 11/4 inches. Distance between inside face of brick and end of pintle shall be a maxi-
mum of 2 inches.
f. Adjustable tie backing attachment components shall consist of one of the following: eyes with minimum wire W2.8 (MW18), barrel with minimum1/4-inch outside diameter, or
plate with minimum thickness of 0.074 inch and minimum width of 11/4 inches.|For SI: 1 inch = 25.4 mm.
a. All fasteners shall have rust-inhibitive coating suitable for the installation in which they are being used, or be manufactured from material not susceptible to corrosion.
b. An airspace that provides drainage shall be permitted to contain mortar from construction.
c. In Seismic Design Category D0, D1 or D2, the minimum tie fastener shall be an 8d ring-shank nail (21/2 in. × 0.131 in.).
d. Adjustable tie pintles shall include not fewer than 1 pintle leg of wire size W2.8 (MW18) with a maximum offset of 11/4 inches.
e.CEBC § 1.1.5 Medium relevance — show source text
1.1.5 Referenced Codes. The codes, standards and publica- tions adopted and set forth in this code, including other codes, standards and publications referred to therein are, by title and date of publication, hereby adopted as standard reference documents of this code. When this code does not specifically cover any subject related to building design and construction, recognized architectural or engineering practices shall be employed. The National Fire Codes, standards, and the Fire Protection Handbook of the National Fire Protection Asso- ciation are permitted to be used as authoritative guides in determining recognized fire prevention engineering practices.
1.1.6 Non-Building Standards, Orders, and Regulations. Requirements contained in the Uniform Plumbing Code, or in any other referenced standard, code or document, which are not building standards as defined in Health and Safety Code Section 18909 shall not be construed as part of the provisions of this code. For nonbuilding standards, orders, and regula- tions, see other titles of the California Code of Regulations.
1.1.7 Order of Precedence and Use.
1.1.7.1 Differences. In the event of any differences between these building standards and the standard ref- erence documents, the text of these building standards shall govern.
1.1.7.2 Specific Provisions. Where a specific provision varies from a general provision, the specific provision shall apply.
1.1.7.3 Conflicts. When the requirements of this code conflict with the requirements of any other part of the California Building Standards Code, Title 24, the most restrictive requirements shall prevail.
1.1.7.3.1 Detached One- and Two-Family Dwellings. Detached one- and two-family dwellings, lodging houses, live/work units, townhouses not more than three stories above grade plane in height with a separate means of egress, and their accessory structures, shall not be required to comply with the California Residential Code if constructed in accor- dance with the California Building Code.
1.1.8 City, County, or City and County Amendments, Addi- tions or Deletions. The provisions of this code do not limit the authority of city, county, or city and county governments to establish more restrictive and reasonably necessary dif- ferences to the provisions contained in this code pursuant to complying with Section 1.1.8.1. The effective date of amend- ments, additions, or deletions to this code by city, county, or city and county filed pursuant to Section 1.1.8.1 shall be the date filed. However, in no case shall the amendments, addi- tions or deletions to this code be effective any sooner than the effective date of this code.
4 2025 CALIFORNIA PLUMBING CODE
), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.
DIVISION I CALIFORNIA ADMINISTRATION
Local modifications shall comply with Health and Safety Code Section 18941.5 for Building Standards Law, Health and Safety Code Section 17958 for State Housing Law or Health and Safety Code Section 13869.7 for Fire Protection Districts.
CEBC § 1-12 Medium relevance — show source text
1.9 Division of the State Architect . . . . . . . . . . . . . . . . . . . . 1-12
1.10 Department of Health Care Access and Information/Office of Statewide Hospital Planning and Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
1.11 Office of the State Fire Marshal . . . . . . . . . . . . . . . . . . . 1-15
1.12 State Librarian. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
1.13 Department of Water Resources . . . . . . . . . . . . . . . . . . 1-20
1.14 California State Lands Commission . . . . . . . . . . . . . . . 1-20
DIVISION II – SCOPE AND ADMINISTRATION . . . . . . . . . . . . . . . . . 1-21
PART 1—SCOPE AND APPLICATION. . . . . . . . . . . . . . . . . . . . . . . 1-21
101 Scope and General Requirements. . . . . . . . . . . . . . . 1-21
102 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
PART 2—ADMINISTRATION AND ENFORCEMENT . . . . . . . . . . . 1-22
103 Code Compliance Agency . . . . . . . . . . . . . . . . . . . . . . 1-22
104 Duties and Powers of Code Official. . . . . . . . . . . . . . 1-22
105 Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
106 Construction Documents . . . . . . . . . . . . . . . . . . . . . . 1-26
107 Temporary Uses, Equipment and Systems. . . . . . . 1-28
108 Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
109 Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
110 Certificate of Occupancy. . . . . . . . . . . . . . . . . . . . . . . 1-30
111 Service Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30
112 Means of Appeals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30
Frequently asked questions
If a national standard is more protective than CEBC, which governs?
Use the most protective requirement that applies. If the national standard is more restrictive than CEBC and both are applicable, the more restrictive rule applies under the Title 24 precedence rules. See § 1.1.7.3.
Can a designer mix requirements from the CRC and CBC for a townhouse?
No — for detached one‑ and two‑family dwellings and certain townhouses, you may use either the CRC or the CBC but not both, except where the CRC explicitly directs use of the CBC. See § 1.1.7.3.1.
What if enforcement of a CEBC provision would violate a manufacturer’s listing?
If enforcing the CEBC provision would violate the listing conditions of a listed appliance or product, the listing conditions control for that item (the CEBC recognizes this exception). See the referenced‑standards exception.
Who decides when two requirements appear to conflict in practice?
The code official makes determinations of compliance, may render interpretations, and can require technical reports or tests to support an alternate approach. See § 104.2.
If I want to use an alternate method that differs from CEBC text, what do I do?
Submit a written alternate‑means request with supporting evidence to the enforcing agency; the agency evaluates equivalency and may require tests or reports. The code official’s review is authorized by CEBC enforcement provisions.
More in California Existing Building Code
- Administration and Definitions (Scope, enforcement, code official duties, definitions)
- Provisions for All Compliance Methods (general requirements that apply to all compliance options; Chapter 3 / 3A)
- Seismic retrofit and evaluation (Appendix A and seismic provisions/sections for evaluation and retrofit)
- Referenced Standards and Appendices (Chapter 16 and Appendices A–E, Resource A)
- Repairs (Chapter 4 — repair-specific rules for materials, means of egress, structural, MEP, etc.)
- Alterations — Level 1, Level 2, Level 3 (technical requirements for each alteration level; Chapters 7–9)
- Change of Occupancy and Additions (requirements for occupancy changes and additions; Chapters 10–11)
- Compliance Methods — Prescriptive, Work Area, Performance (Chapters 5, 6–11, 13)
- Relocated Buildings (requirements for buildings moved or relocated; Chapter 14)
- Construction Safeguards (site safety, means of egress and life-safety during construction; Chapter 15)
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