What conformance (occupancy, repairs, field-fabricated elements) is required after moving a building?

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

• CEBC § 1401.1.1 High relevance — show source text

  and the California Code of Regulations, Title 25, Division 1, Chapter 2._ Manufactured homes must meet unit identification (data plate) and certification label requirements as specified in the Code of Federal Regulations, Title 24, Subtitle B, Chapter XX, Part 3280 and Health and Safety Code Section 18032. Commercial modulars and special purpose commercial modulars must meet identification requirements in the California Code of Regulations, Title 25, Division 1, Chapter 3, Subchapter 2.

  1401.1.1 Bleachers, folding and telescopic seating and grandstands. Relocated or moved bleachers, folding and telescopic seating and grandstands shall comply with ICC 300.

  1401.2 Conformance. The building shall be safe for human occupancy as determined by the California Fire Code and the Interna- tional Property Maintenance Code . Any repair, alteration or change of occupancy undertaken within the moved structure shall comply with the requirements of this code applicable to the work being performed. Any field-fabricated elements shall comply with the requirements of the California Building Code or the California Residential Code, as applicable. [HCD 1 & HCD 2] After July 1, 1978, local ordinances or regulations for relocated or moved apartment houses and dwellings shall permit the retention of existing materials and methods of construction, provided the apartment house or dwelling complies with the building standards for foundations applica- ble to new construction and does not become or continue to be a substandard building. For additional information, see Health and Safety Code Section 17958.9.

  SECTION 1402—REQUIREMENTS

  1402.1 Location on the lot. The building shall be located on the lot in accordance with the requirements of the California Building Code or the California Residential Code, as applicable.

  [BS] 1402.2 Foundation. The foundation system of relocated buildings shall comply with the California Building Code or the Califor- nia Residential Code, as applicable.

  [BS] 1402.2.1 Connection to the foundation. The connection of the relocated building to the foundation shall comply with the California Building Code or the California Residential Code, as applicable.

  [BS] 1402.3 Wind loads. Buildings shall comply with California Building Code or California Residential Code wind provisions, as applicable.

  Exceptions:

  1. Detached one- and two-family dwellings and Group U occupancies where wind loads at the new location are not higher than those at the previous location.
  2. Structural elements whose stress is not increased by more than 10 percent.

  [BS] 1402.4 Seismic loads. Buildings shall comply with California Building Code or California Residential Code seismic provisions at the new location, as applicable.

  Exceptions:

  1. Structures in Seismic Design Categories A and B and detached one- and two-family dwellings in Seismic Design Categories A, B and C where the seismic loads at the new location are not higher than those at the previous location.
  2. Structural elements whose stress is not increased by more than 10 percent.

  [BS] 1402.5 Snow loads. Structures shall comply with California Building Code or California Residential Code snow loads, as applicable, where snow loads at the new location are higher than those at the previous location.

  Exception: Structural elements whose stress is not increased by more than 5 percent.

• CEBC § 1.11. High relevance — show source text

  The state agency does not adopt sections identified with the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.

  2025 CALIFORNIA EXISTING BUILDING CODE 14-1

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  14-2 2025 CALIFORNIA EXISTING BUILDING CODE

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  14 RELOCATED OR MOVED BUILDINGS

  User notes:

  About this chapter: Chapter 14 is applicable to any building that is moved or relocated. The relocation of a building will automatically cause an inspection and evaluation process that enables the jurisdiction to determine the level of compliance with the California Fire Code and the California Existing Building Code . These two codes, by their scope, are applicable to existing buildings. This is the case regardless of any repair, remodeling, alteration work or change of occupancy occurring (see the California Fire Code and California Existing Building Code.

  SECTION 1401—GENERAL

  1401.1 Scope. This chapter provides requirements for relocated or moved structures, including relocatable buildings as defined in Chapter 2. [HCD] The provisions of Chapter 14 are not applicable to commercial modulars, manufactured homes, mobilehomes, multi- unit manufactured housing and special purpose commercial modulars as defined in Health and Safety Code Sections 18001.8, 18007, 18008, 18008.7 and 18012.5, respectively. These structures are subject to installation/reinstallation requirements specified in the Mobile- home Parks Act (Health and Safety Code Section 18200 et seq.) and the California Code of Regulations, Title 25, Division 1, Chapter 2. Manufactured homes must meet unit identification (data plate) and certification label requirements as specified in the Code of Federal Regulations, Title 24, Subtitle B, Chapter XX, Part 3280 and Health and Safety Code Section 18032. Commercial modulars and special purpose commercial modulars must meet identification requirements in the California Code of Regulations, Title 25, Division 1, Chapter 3, Subchapter 2.

  1401.1.1 Bleachers, folding and telescopic seating and grandstands. Relocated or moved bleachers, folding and telescopic seating and grandstands shall comply with ICC 300.

  1401.2 Conformance. The building shall be safe for human occupancy as determined by the California Fire Code and the Interna- tional Property Maintenance Code . Any repair, alteration or change of occupancy undertaken within the moved structure shall comply with the requirements of this code applicable to the work being performed. Any field-fabricated elements shall comply with the requirements of the California Building Code or the California Residential Code, as applicable. [HCD 1 & HCD 2] After July 1, 1978, local ordinances or regulations for relocated or moved apartment houses and dwellings shall permit the retention of existing materials and methods of construction, provided the apartment house or dwelling complies with the building standards for foundations applica- ble to new construction and does not become or continue to be a substandard building. For additional information, see Health and Safety Code Section 17958.9.

  SECTION 1402—REQUIREMENTS

• CEBC § 105.2 High relevance — show source text

  401 A .2 Compliance. The work shall not make the building less complying than it was before the repair was undertaken. Work on nondamaged components that is necessary for the required repair of damaged components shall be considered part of the repair and shall not be subject to requirements for alterations.

  401 A .3 Flood hazard areas. In flood hazard areas, repairs that constitute substantial improvement shall require that the building comply with Section 1612 A of the California Building Code .

  SECTION 402 A —BUILDING ELEMENTS AND MATERIALS

  402 A .1 Glass replacement. The installation or replacement of glass shall be as required for new installations in accordance with the California Building Code.

  SECTION 403 A —FIRE PROTECTION

  403 A .1 General. Fire protection shall comply with the California Building Standards Code.

  SECTION 404 A —MEANS OF EGRESS

  404 A .1 General. Repairs shall be done in a manner that maintains the level of protection provided for the means of egress.

  SECTION 405 A —STRUCTURAL

  405 A .1 General. Structural damage shall be repaired in compliance with this section and Section 401 A .2.

  Exception: Routine maintenance required by Chapter 3A, ordinary repairs exempt from permit in accordance with California Building Code Section 105.2, and abatement of wear due to normal service conditions shall not be subject to the requirements for repairs in this section.

  405 A .1.1 Structural concrete. Repair of structural concrete shall be permitted to comply with ACI 562 Section 1.7, except where Section 405.2.2, 405.2.3 or 405.2.4.1 requires compliance with Section 304.3.

  405 A .2 Repairs to damaged buildings. Repairs to damaged buildings shall comply with this section.

  405 A .2.1 Repairs for less than substantial structural damage. Unless otherwise required by this section, for damage less than substantial structural damage, the damaged elements shall be permitted to be restored to their predamage condition. New struc- tural members and connections used for this repair shall comply with the detailing provisions of this code for new buildings of similar structure, purpose and location.

  405 A .2.1.1 Snow damage. Structural components whose damage was caused by or related to snow load effects shall be repaired, replaced or altered to satisfy the requirements of Section 1608 of the California Building Code .

  405 A .2.2 Disproportionate earthquake damage. A building assigned to Seismic Design Category D, E or F that has sustained disproportionate earthquake damage shall be subject to the requirements for buildings with substantial structural damage to vertical elements of the lateral force-resisting system.

• CEBC § 6.2. High relevance — show source text

  Adjacent structures or site features that may affect the retrofit design shall be identified._

  The entire load path of the seismic-force-resisting system shall be determined, documented and evaluated. The load path includes all the horizontal and vertical elements participating in the structural response: such as diaphragms, diaphragm chords, diaphragm collectors, vertical elements such as walls frames, braces; foundations and the connections between the components and elements of the load path. Repaired or retrofitted elements and the standards under which the work was constructed shall be identified.

  Data collection in accordance with ASCE 41 shall meet the following minimum levels: 1. [BSC] For state-owned buildings, the requirements shall be met following the data collection requirements of ASCE 41, Section 6.2.

  2. [DSA-SS, DSA-SS/CC] For public schools and community college buildings constructed in conformance with the Field Act, visual condition assessment and usual material testing is required unless a more extensive level is required by ASCE 41, Section 6.2.

  3. [DSA-SS, DSA-SS/CC] For public schools and community college buildings not constructed in conformance with the Field Act, comprehensive condition assessment and material testing is required, unless a more extensive level is required by ASCE 41, Section 6.2.

  Concrete material requirements and testing for public school and community college buildings shall also comply with Sections 1911A and 1909.5 of the California Building Code, respectively.

  Qualified test data from the original construction may be accepted, in part or in whole, by the enforcement agency to fulfill the data collection requirements.

  Exceptions: 1. The number of samples for data collection may be adjusted with approval of the enforcement agency when it has been determined that adequate information has been obtained or additional information is required. 2. Welded steel moment frame connections of buildings that may have experienced potentially damaging ground motions shall be inspected in accordance with Chapters 3 and 4, FEMA 352, Recommended Post Earthquake Evaluation and Repair Criteria for Welded Moment-Frame Construction for Seismic Applications (July 2000).

  Where original building plans and specifications are not available, “as-built” plans shall be prepared that depict the existing vertical and lateral structural systems, exterior elements, foundations and nonstructural systems in sufficient detail to complete the design.

  Data collection shall be directed and observed by the project structural engineer or design professional in charge of the design.

  319.3 Site geology and soil characteristics. Soil profile shall be assigned in accordance with the requirements of Chapter 18 of the California Building Code.

  319.4 Risk categories. Each structure shall be placed in one of the Risk Categories in accordance with the requirements of the California Building Code.

  319.5 Configuration requirements. Each structure shall be designated structurally regular or irregular. If the evaluation and retrofit is in accordance with Table 317.5, Footnote 2 or 3, the building shall be classified by application of ASCE 7, Section 12.3.2. If the evaluation and retrofit is in accordance with ASCE 41, the building shall be classified as irregular when an irregularity defined in ASCE 41, Sections 7.3.1.1.1 through 7.3.1.1.4 exists.

  319.6 General selection of the design method. The requirements of Method B (Section 321) may be used for any existing building.

• CEBC § 302A.6 High relevance — show source text

  Exception: Where alternative design criteria are specifically permitted.

  302 A .5 Occupancy and use. Where determining the appropriate application of the referenced sections of this code, the occupancy and use of a building shall be determined in accordance with Chapter 3 of the California Building Code .

  302A.6 Maintenance. Buildings and structures, and parts thereof, shall be maintained in a safe and sanitary condition. Devices or safe- guards which are required by this code shall be maintained in conformance with the code edition under which they were installed. The owner or the owner’s designated agent shall be responsible for the maintenance of buildings and structures. To determine compliance with this subsection, the building official shall have the authority to require a building or structure to be re-inspected. The requirements of this chapter shall not provide the basis for removal or abrogation of fire protection and safety systems and devices in existing structures.

  302A.7 Construction documents for retrofit or rehabilitation. The design loads and other information pertinent to the structural design required by California Building Code Section 1603A shall be included in the drawings. In addition to the information required by California Building Code Section 1603A.1.5, the drawings shall show the ground motion hazard used for the retrofit or rehabilitation as either a percentage of the California Building Code prescribed ground motion for new hospital buildings, or ASCE 41 seismic hazard designation, or a probability of exceedance in a specified time period, or a return period for exceedance of the specified ground motion.

  SECTION 303 A — RESERVED

  SECTION 304 A —STRUCTURAL DESIGN LOADS AND EVALUATION AND DESIGN PROCEDURES

  304 A .1 Live loads. Where an addition or alteration does not result in increased design live load, existing gravity load-carrying structural elements shall be permitted to be evaluated and designed for live loads approved prior to the addition or alteration. If the approved live load is less than that required by Section 1607 A of the California Building Code, the area designated for the nonconforming live load shall be posted with placards of approved design indicating the approved live load. Where the addition or alteration results in increased design live load, the live load required by Section 1607 A of the California Building Code shall be used.

  304 A .2 Snow loads on adjacent buildings. Where an alteration or addition changes the potential snow drift effects on an adjacent building, the code official is authorized to enforce Section 7.12 of ASCE 7.

  304 A .3 Additions, alterations, repairs and seismic retrofit to existing buildings or structures.

  304 A .3.1 Structures designed in accordance with pre-1973 building code. Provisions of this section shall apply to hospital build- ings which were originally designed to pre-1973 building codes and not designated as SPC 3 or higher in accordance with Chapter 6 of the California Administrative Code.

• CEBC § 2-6 High relevance — show source text

  If the structure has sustained substantial damage, any repairs are considered substantial improvement regardless of the actual repair work performed. The term does not, however, include either of the following:

  1. Any project for improvement of a building required to correct existing health, sanitary or safety code violations identified by the code official and that is the minimum necessary to ensure safe living conditions.
  2. Any alteration of a historic structure, provided that the alteration will not preclude the structure’s continued designation as a historic structure.

  [BS] SUBSTANTIAL STRUCTURAL ALTERATION. An alteration in which the gravity load-carrying structural elements altered within a 5-year period support more than 30 percent of the total floor and roof area of the building or structure. The areas to be counted toward the 30 percent shall include mezzanines, penthouses, and in-filled courts and shafts tributary to the altered structural elements.

  [BS] SUBSTANTIAL STRUCTURAL DAMAGE. A condition where any of the following apply:

  1. The vertical elements of the lateral force-resisting system have suffered damage such that the lateral load-carrying capacity of any story in any horizontal direction has been reduced by more than 33 percent from its predamage condition.
  2. The capacity of any vertical component carrying gravity load, or any group of such components, that has a tributary area more than 30 percent of the total area of the structure’s floor(s) and roof(s) has been reduced more than 20 percent from its predamage condition, and the remaining capacity of such affected elements, with respect to all dead and live loads, is less than 75 percent of that required by the California Building Code for new buildings of similar structure, purpose and location.
  3. The capacity of any structural component carrying snow load, or any group of such components, that supports more than 30 percent of the roof area of similar construction has been reduced more than 20 percent from its predamage condition, and the remaining capacity with respect to dead, live and snow loads is less than 75 percent of that required by the Califor- nia Building Code for new buildings of similar structure, purpose and location.

  For purposes of this definition, work done to implement repairs shall not be considered damage that reduces structural capacity.

  SUBSTANTIAL STRUCTURAL DAMAGE. [OSHPD 1 & 1R] A condition where any of the following apply: 1. The vertical elements of the lateral force-resisting system have suffered damage such that the lateral load carrying capacity of any story in any horizontal direction has been reduced by more than 10 percent from its predamage condition. 2. The capacity of any vertical component carrying gravity load, or any group of such components, has a tributary area more than 15 percent of the total area of the structure’s floor(s) and roof(s), has been reduced more than 10 percent from its predamage condition, and the remaining capacity of such affected elements, with respect to all dead and live loads, is less than 75 percent of that required by the California Building Code for new buildings of similar structure, purpose and location. 3. The capacity of any structural component carrying snow load, or any group of such components, that supports more than 15 percent of the roof area of similar construction, has been reduced more than 10 percent from its predamage condition, and the

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  DEFINITIONS

• CEBC § 319.1.3 High relevance — show source text

  319.1.3 For state-owned and community college buildings, where unreinforced masonry is not bearing, it may be used only to resist applied lateral loads. Where unreinforced masonry walls are part of the structure they must be assessed for stability under the applicable nonstructural evaluation procedure.

  319.1.4 Public schools. [DSA-SS] For public schools, unreinforced masonry shall not be used to resist in-plane or out-of-plane seismic forces or superimposed gravity loads.

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  PROVISIONS FOR ALL COMPLIANCE METHODS

  319.1.5 Public schools. [DSA-SS] Wood horizontal diaphragms and wood vertical shear walls shall consist of either diagonal lumber sheathing or structural panel sheathing. Braced horizontal diaphragms may be acceptable when approved by DSA. Straight lumber sheathing may be used as diaphragms or shear walls only when overlain with structural panel sheathing. Let-in bracing, plaster (stucco), hollow clay tile, gypsum wallboard and particleboard sheathing shall not be relied upon to resist seismic forces.

  319.2 Existing conditions. The existing condition and properties of the entire structure must be determined and documented by thorough inspection of the structure and site, review of all available related construction documents, review of geotechnical and engineering geologic reports, and performance of necessary testing and investigation. Where samples from the existing structure are taken or in situ tests are performed, they shall be selected and interpreted in a statistically appropriate manner to ensure that the properties determined and used in the evaluation or design are representative of the conditions and structural circumstances likely to be encountered in the structure as a whole. Adjacent structures or site features that may affect the retrofit design shall be identified.

  The entire load path of the seismic-force-resisting system shall be determined, documented and evaluated. The load path includes all the horizontal and vertical elements participating in the structural response: such as diaphragms, diaphragm chords, diaphragm collectors, vertical elements such as walls frames, braces; foundations and the connections between the components and elements of the load path. Repaired or retrofitted elements and the standards under which the work was constructed shall be identified.

  Data collection in accordance with ASCE 41 shall meet the following minimum levels: 1. [BSC] For state-owned buildings, the requirements shall be met following the data collection requirements of ASCE 41, Section 6.2.

  2. [DSA-SS, DSA-SS/CC] For public schools and community college buildings constructed in conformance with the Field Act, visual condition assessment and usual material testing is required unless a more extensive level is required by ASCE 41, Section 6.2.

  3. [DSA-SS, DSA-SS/CC] For public schools and community college buildings not constructed in conformance with the Field Act, comprehensive condition assessment and material testing is required, unless a more extensive level is required by ASCE 41, Section 6.2.

  Concrete material requirements and testing for public school and community college buildings shall also comply with Sections 1911A and 1909.5 of the California Building Code, respectively.

• CEBC § 2.74 High relevance — show source text

  01|2.74| |× 191|1.85|2.50| |× 173|1.66|2.28| |× 132|1.47|1.85| |× 124|1.39|1.75| |× 116|1.30|1.65| |× 108|1.21|1.54| |× 99|1.12|1.42| |W27 × 178|1.87|2.55| |× 161|1.70|2.33| |× 146|1.55|2.12| |× 114|1.39|1.76| |× 102|1.24|1.59| |× 94|1.15|1.47| |× 84|1.03|1.33| |W24 × 162|1.88|2.57| |× 146|1.70|2.34| |× 131|1.54|2.12| |× 117|1.38|1.91| |× 104|1.24|1.71| |× 94|1.28|1.63| |× 84|1.15|1.47| |× 76|1.05|1.34| |W24 × 68|0.942|1.21| |× 62|0.934|1.14| |× 55|0.828|1.02|

  2025 CALIFORNIA BUILDING CODE 7-83

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  FIRE AND SMOKE PROTECTION FEATURES

  TABLE 722.5.1(4)—WEIGHT-TO-HEATED-PERIMETER RATIOS (W/D) FOR TYPICAL WIDE FLANGE BEAM AND GIRDER SHAPES—continued	Col2	Col3
  STRUCTURAL SHAPE	CONTOUR PROFILE	BOX PROFILE
  W21 × 147	1.87	2.60
  × 132	1.68	2.35
  × 122	1.57	2.19
  × 111	1.43	2.01
  × 101	1.30	1.84
  × 93	1.40	1.80
  × 83	1.26	1.62
  × 73	1.11	1.44
  × 68	1.04	1.35
  W21 × 62	0.952	1.23
  × 57	0.952	1.17
  × 50	0.838	1.04
  × 44	0.746	0.92
  W18 × 119	1.72	2.42
  × 106	1.55	2.18
  × 97	1.42	2.01
  × 86	1.27	1.80
  × 76	1.13	1.60
  × 71	1.22	1.59
  × 65	1.13	1.47
  × 60	1.04	1.36
  × 55	0.963	1.26
  × 50	0.88	1.15
  × 46	0.878	1.09
  × 40	0.768	0.

• CEBC § 2.1 High relevance — show source text

  SECTION BO104—REPAIRS

  BO104.1 General. Repairs shall comply with the applicable provisions of this code for new construction or as permitted by this appendix.

  BO104.2 Materials. Materials used during repairs shall comply with this section.

  BO104.2.1 New and replacement materials. Except as otherwise required or permitted by this code, materials permitted by this code for new construction shall be used. Like materials shall be permitted for repairs and alterations, provided that unsafe conditions are not created. Hazardous materials shall not be used where this code would not permit their use in buildings of similar occupancy, purpose and location.

  BO104.2.2 Existing materials. Materials already in use in a building in compliance with requirements or approvals in effect at the time of their erection or installation shall be permitted to remain in use unless determined by the building official to be unsafe.

  BO104.2.3 Plumbing materials and supplies. The following plumbing materials and supplies shall not be used:

  1. All-purpose solvent cement, unless listed for the specific application.
  2. Flexible traps and tailpieces, unless listed for the specific application.
  3. Solder having more than 0.2-percent lead in the repair of potable water systems.

  BO104.3 Water closets. Where any water closet is replaced with a newly manufactured water closet, the replacement water closet shall comply with the requirements of Section P2903.2.

  BO104.4 Electrical. Repair or replacement of existing electrical wiring and equipment shall comply with Chapters 34 through 43.

  BO104.5 Structural. Repaired structural elements and systems shall comply with Section R102.6.1 and the structural provisions of this appendix.

  SECTION BO105—ALTERATIONS

  BO105.1 General. Alterations to existing buildings shall comply with the provisions of this code for new construction, except as permitted by Sections BO105.2 through BO105.8. Engineered design in accordance with Section R301.1.3 shall be permitted to meet the requirements of this section. Alterations shall not cause the existing building to become less compliant with the provisions of this code for new construction than the existing building was prior to the work.

  BO105.2 Newly constructed elements. Newly constructed elements, components and systems shall comply with the requirements of this code.

  Exceptions:

  1. Added openable windows are not required to comply with the light and ventilation requirements of Section R325.
  2. Newly installed electrical equipment shall comply with the requirements of Section BO105.5.

  BO105.3 Nonconformities. The work shall not increase the extent of noncompliance or create nonconformity to those requirements that did not previously exist.

  BO105.4 Structural. Altered structural elements and systems shall comply with Section R102.6.1 and the structural provisions of this appendix.

  BO105.4.1 Decreased structural capacity. Where an alteration causes a decrease in capacity in any structural component, that structural component shall be shown to comply or shall be altered to comply with the applicable provisions of Chapters 3, 4, 5, 6 and 8.

  BO105.4.2 Increased design loads. Where an alteration causes an increase in loads as described in this section, the existing structural components that support the increased load, including the foundation, shall be shown to comply or shall be altered to comply with the applicable provisions of Chapters 3, 4, 5, 6 and 8. Existing structural components that do not provide support for the increased loads shall not be required to comply with this section.

• CEBC § 7.2 High relevance — show source text

  7.2|—|—|—|—|—|—|—|—|—|—|—|—|—|R|—|—|—|—|—|—|—|—|—| |1103.7.3|—|—|—|—|—|—|—|—|—|—|—|—|—|—|R|—|—|—|—|—|—|—|—| |1103.7.4|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|R|—|—|—|—|—|—|—| |1103.7.5|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|R|—|—|—|—| |1103.7.6|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|R|—|—|—| |1103.8|—|—|—|—|—|—|—|—|—|—|—|—|—|R|—|—|—|—|R|R|R|R|—| |1103.9|R|—|—|—|—|—|—|—|—|—|—|—|—|R|R|—|R|—|R|R|R|R|—| |1103.10|—|—|—|—|—|—|—|—|—|—|—|—|—|R|R|—|—|—|—|—|—|—|—| |1104|R|R|R|—|R|R|R|R|R|R|R|R|R|R|R|R|R|R|R|R|R|R|R| |1105|—|—|—|—|—|—|—|—|—|—|—|—|—|—|R|—|—|—|—|—|—|—|—| |1106|—|—|—|R|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—|—| |R = The building is required to comply.
  a.
  Existing buildings shall comply with the sections identified as “Required” (R) based on occupancy classification or use, or both, whichever is applicable.
  b.
  Only applies to Group I-2, Condition 2 occupancies as established by the adopting ordinance or legislation of the jurisdiction.
  c.
  Only applies to Group A-2 occupancies where alcoholic beverages are consumed.|R = The building is required to comply.
  a.
  Existing buildings shall comply with the sections identified as “Required” (R) based on occupancy classification or use, or both, whichever is applicable.
  b.
  Only applies to Group I-2, Condition 2 occupancies as established by the adopting ordinance or legislation of the jurisdiction.
  c.
  Only applies to Group A-2 occupancies where alcoholic beverages are consumed.|R = The building is required to comply.
  a.
  Existing buildings shall comply with the sections identified as “Required” (R) based on occupancy classification or use, or both, whichever is applicable.
  b.
  Only applies to Group I-2,

• CEBC § 1.3 High relevance — show source text

  SECTION BO106—ADDITION

  BO106.1 General. Where existing buildings with the addition are within the scope of this code, additions shall comply with this section and other applicable provisions of this code for new construction or as permitted by this appendix. Engineered design in accordance with Section R301.1.3 shall be permitted to meet the requirements of this section.

  BO106.2 Structure for horizontal additions. Where an addition involves new construction attached to an existing building, the new construction shall meet all of the structural requirements of this code for new construction. Alterations to the existing building shall comply with the requirements governing alterations within this code. In wood light-frame additions, connection of the structural components shall be permitted to be provided using wall top plates and addition studs that abut the existing building. Wall top plates shall be lapped and spliced in accordance with Section R602.3.2. Abutting studs shall be fastened in accordance with Table R602.3(1).

  Exception: The addition structure shall be permitted to be connected to the existing building in accordance with accepted engineering practice.

  BO106.3 Structure for vertical additions. Where an addition involves new construction that adds a story to any part of the existing building or vertically increases the height of any part of the existing building, the new construction and the existing building together shall be shown to comply with, or altered to comply with, all of the structural requirements of this code for new construction.

  Exception: Where the new structure and the existing structure together are evaluated in accordance with accepted engineering practice and are shown to be sufficient to support the combined loads from the new structure and existing structure, no structural alterations are required.

  SECTION BO107—RELOCATED BUILDINGS

  BO107.1 General. Residential buildings or structures moved into or within the jurisdiction are not required to comply with the requirements for new construction under this code, provided they comply with all of the following conditions:

  1. The building shall be safe for human occupancy as determined by the California Fire Code and the International Property Maintenance Code .

  2. Any repair, alteration or change of use undertaken within the relocated structure shall comply with the requirements of this code applicable to the work being performed.

  3. Any field fabricated elements shall comply with the applicable requirements of this code.

  SECTION BO108—REFERENCED STANDARDS

  BO108.1 General. See Table BO108.1 for standards that are referenced in various sections of this appendix. Standards are listed by the standard identification with the effective date, the standard title and the section or sections of this appendix that reference the standard.

  TABLE BO108.1—REFERENCED STANDARDS	Col2	Col3
  STANDARD ACRONYM	STANDARD NAME	SECTION HEREIN REFERENCED
  CEBC—25	California Existing Building Code	BO102.8
  CFC—25	California Fire Code	BO107.1
  IPMC—24	International Property Maintenance Code®	BO107.1

  APPENDIX BO-6 2025 CALIFORNIA RESIDENTIAL CODE

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

  CA RESERVED

  2025 CALIFORNIA RESIDENTIAL CODE APPENDIX CA-1

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

  APPENDIX CA-2 2025 CALIFORNIA RESIDENTIAL CODE

• CEBC § 1402.2 High relevance — show source text

  [BS] 1402.2 Foundation. The foundation system of relocated buildings shall comply with the California Building Code or the Califor- nia Residential Code, as applicable.

  [BS] 1402.2.1 Connection to the foundation. The connection of the relocated building to the foundation shall comply with the California Building Code or the California Residential Code, as applicable.

  [BS] 1402.3 Wind loads. Buildings shall comply with California Building Code or California Residential Code wind provisions, as applicable.

  Exceptions:

  1. Detached one- and two-family dwellings and Group U occupancies where wind loads at the new location are not higher than those at the previous location.
  2. Structural elements whose stress is not increased by more than 10 percent.

  [BS] 1402.4 Seismic loads. Buildings shall comply with California Building Code or California Residential Code seismic provisions at the new location, as applicable.

  Exceptions:

  1. Structures in Seismic Design Categories A and B and detached one- and two-family dwellings in Seismic Design Categories A, B and C where the seismic loads at the new location are not higher than those at the previous location.
  2. Structural elements whose stress is not increased by more than 10 percent.

  [BS] 1402.5 Snow loads. Structures shall comply with California Building Code or California Residential Code snow loads, as applicable, where snow loads at the new location are higher than those at the previous location.

  Exception: Structural elements whose stress is not increased by more than 5 percent.

  [BS] 1402.6 Flood hazard areas. If relocated or moved into a flood hazard area, structures shall comply with Section 1612 of the California Building Code, or Section R306 of the California Residential Code, as applicable.

  2025 CALIFORNIA EXISTING BUILDING CODE 14-3

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

  RELOCATED OR MOVED BUILDINGS

  [BS] 1402.7 Required inspection and repairs. The code official shall be authorized to inspect, or to require approved professionals to inspect at the expense of the owner, the various structural parts of a relocated building to verify that structural components and connections have not sustained structural damage. Any repairs required by the code official as a result of such inspection shall be made prior to the final approval.

  14-4 2025 CALIFORNIA EXISTING BUILDING CODE

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

  CALIFORNIA EXISTING BUILDING CODE – MATRIX ADOPTION TABLE

  CHAPTER 15 – CONSTRUCTION SAFEGUARDS

  (Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

  Adopting Agency	BSC	BSC- CG	SFM	HCD	Col6	Col7	DSA	Col9	Col10	OSHPD	Col12	Col13	Col14	Col15	Col16	Col17	BSCC	DPH	AGR	DWR	CEC	CA	SL	SLC
  Adopting