CRC · California Residential Code

How are temporary structures/uses and plan time limits handled?

Temporary building permits under the California Residential Code are short-term authorizations (normally up to 180 days) that require the temporary structure/use to meet basic safety standards; the building official can grant extensions for demonstrated cause and can terminate approval if safety or compliance is lacking.

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Last reviewed: July 6, 2026

What the code requires — plain English (controlling §)

The building official may issue permits for temporary structures and uses for a limited period — not more than 180 days — and may grant extensions for demonstrated cause. All temporary installations must meet the code’s basic safety requirements (structure, fire safety, egress, lighting/ventilation, sanitation). See § R107.1 and § R107.2 for the core rules.

Temporary permits are short-term authorizations: a permit for a temporary structure/use normally expires within 180 days unless the building official approves a documented extension.

Requirements in detail

1) Permit duration (time limit)

  • The standard maximum service time for a temporary permit is 180 days. The building official is authorized to grant extensions for demonstrated cause. See § R107.1.

2) Safety / code conformance

  • Temporary structures and uses must conform to structural strength, fire safety, means of egress, light, ventilation and sanitary requirements necessary to protect public health and safety. See § R107.2.

3) Temporary utilities and partial approvals

  • The building official can permit temporary supply of power to part of an installation before completion; such temporary service must comply with the applicable electrical code requirements for temporary power. See § R107.3.
  • Phased permits or partial approvals for portions of work (e.g., foundations) are authorized where adequate information is provided; the permit holder proceeds at their own risk. See § R106.3.3.

4) Termination and enforcement

  • The building official may terminate a temporary permit and order the use/structure discontinued if conditions warrant. See § R107.4.

5) Plan retention and approvals related to time

  • One set of approved construction documents is retained by the building official for at least 180 days from completion, unless other laws require longer retention. See § R106.5.
  • For previously issued lawful permits, construction pursued in good faith within 180 days after the effective date of a code has protection from retroactive changes (previous approvals). See § R106.3.2.

Decision-relevant quick-reference table

Decision dimension Typical value / action Code Reference
Maximum standard permit length for temporary structures/uses 180 days § R107.1
When extensions allowed Building official may grant for demonstrated cause § R107.1
Required minimum safety conformance Structural, fire, egress, light/ventilation, sanitary § R107.2
Temporary power / partial electrical service Permitted where compliant with California Electrical Code § R107.3
Building official’s termination authority Can terminate and order discontinuation § R107.4
Retention of approved plans after work completion At least 180 days § R106.5
Phased approvals (partial permits) Permitted with adequate info; work at permit holder’s risk § R106.3.3

Exceptions & special cases

  • Emergency or disaster-related temporary uses (repurposing existing buildings during an emergency) are addressed in the Existing Building Code Appendix E (temporary emergency uses) and may have adapted procedures for expedited permits and evolving conditions; those Appendix E provisions apply when invoked. See Appendix E (E103–E106) for emergency-use rules.
  • Some temporary special-event structures are separately regulated in the California Building Code (special temporary structures / temporary special event structures). Those provisions can impose different use periods or inspection/operation requirements (for example, temporary special event structure use periods and inspection obligations in the CBC). See the CBC special-construction sections (e.g., 3103 / 3105) for event-specific limits and submittal/inspection requirements.
  • Where a local jurisdiction has adopted different local rules or longer/shorter durations by ordinance, the local adoption controls to the extent it is lawful and within state law.

Note: The requested CRC sections § R105.5.1 and § R106.1.4 were not present in the retrieved CRC documents I was provided, so I could not directly cite or quote those specific subsections. If you want coverage tied directly to those exact subsections, please upload the CRC pages containing them or allow me to search additional files.

Common mistakes

  • Treating the 180‑day retention/approval language as permission for indefinite occupancy. The code’s 180‑day figure is a maximum short-term authorization; extensions require documented cause and building-official approval. See § R107.1.
  • Confusing plan retention (§ R106.5) with permit duration. Retention of documents for 180 days after completion is a records requirement — distinct from the temporary-permit service limit under § R107.1.
  • Assuming temporary power means permanent wiring is acceptable; temporary power is allowed only under temporary-service provisions and must comply with the California Electrical Code and the temporary-power provisions in § R107.3.
  • Overlooking special rules for temporary public-occupancy structures or special-event structures (CBC/Fire Code sections) — these often require independent inspections, operations plans, or shorter use-period rules. See CBC Sections on temporary structures (3103 / 3105) and the Fire Code.

Worked example

Scenario: A homeowner wants to erect a temporary tent to serve as a backyard classroom for a community program for 150 days.

  1. Permit length: 150 days is within the usual maximum (≤ 180 days), so a temporary permit is allowable under § R107.1. The building official may issue the permit.
  2. Safety conformance: The tent/temporary classroom must meet the code’s structural and egress requirements — e.g., adequate exit paths, lighting, ventilation, and sanitary access — as required by § R107.2. The applicant must show the site plan/means of egress on submittal documents if requested.
  3. Utilities: If the tent needs temporary power, the building official may permit temporary supply provided it complies with temporary-power rules and the California Electrical Code (§ R107.3).
  4. If the homeowner later wants to continue use beyond 180 days, they must request an extension and present demonstrated cause (maintenance of safety, inspection records, etc.); the building official may approve or deny. See § R107.1.

Related provisions (CRC / cross-code)

  • § R107.1 — Temporary structures and uses; time limit and authority to extend.
  • § R107.2 — Conformance (structural, fire, egress, light/ventilation, sanitary).
  • § R107.3 — Temporary power permission and conditions.
  • § R107.4 — Termination of approval/authority to discontinue.
  • § R106.3.3 — Phased approval / partial permits (holder proceeds at their own risk).
  • § R106.3.2 — Previous approvals protection for 180 days when pursued in good faith.
  • § R106.5 — Retention of approved construction documents (not less than 180 days).

(For event-specific or public-occupancy temporary structures, consult the California Building Code sections on temporary structures / special event structures and the California Fire Code for additional time limits, inspection and operational rules.)

Code references

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

  • CRC § 3.3 High relevance — show source text

    R106.3.3 Phased approval. The building official is authorized to issue a permit for the construction of foundations or any other part of a building or structure before the construction documents for the whole building or structure have been submitted, provided that adequate information and detailed statements have been filed complying with pertinent requirements of this code. The holder of such permit for the foundation or other parts of a building or structure shall proceed at the holder’s own risk with the building operation and without assurance that a permit for the entire structure will be granted.

    R106.4 Amended construction documents. Work shall be installed in accordance with the approved construction documents, and any changes made during construction that are not in compliance with the approved construction documents shall be resubmitted for approval as an amended set of construction documents.

    R106.5 Retention of construction documents. One set of approved construction documents shall be retained by the building official for a period of not less than 180 days from date of completion of the permitted work, or as required by state or local laws.

    SECTION R107—TEMPORARY STRUCTURES AND USES

    R107.1 General. The building official is authorized to issue a permit for temporary structures and temporary uses. Such permits shall be limited as to time of service, but shall not be permitted for more than 180 days. The building official is authorized to grant extensions for demonstrated cause.

    R107.2 Conformance. Temporary structures and uses shall conform to the structural strength, fire safety, means of egress, light, ventilation and sanitary requirements of this code as necessary to ensure the public health, safety and general welfare.

    R107.3 Temporary power. The building official is authorized to give permission to temporarily supply and use power in part of an electric installation before such installation has been fully completed and the final certificate of completion has been issued. The part covered by the temporary certificate shall comply with the requirements specified for temporary lighting, heat or power in the California Electrical Code.

    R107.4 Termination of approval. The building official is authorized to terminate such permit for a temporary structure or use and to order the temporary structure or use to be discontinued.

    SECTION R108—FEES

    R108.1 Payment of fees. A permit shall not be valid until the fees prescribed by law have been paid, nor shall an amendment to a permit be released until the additional fee, if any, has been paid.

    R108.2 Schedule of permit fees. On buildings, structures, electrical, gas, mechanical and plumbing systems or alterations requiring a permit, a fee for each permit shall be paid as required, in accordance with the schedule as established by the applicable governing authority.

    R108.3 Building permit valuations. Building permit valuation shall include total value of the work for which a permit is being issued, such as electrical, gas, mechanical, plumbing equipment and other permanent systems, including materials and labor.

    R108.4 Related fees. The payment of the fee for the construction, alteration, removal or demolition for work done in connection to or concurrently with the work authorized by a building permit shall not relieve the applicant or holder of the permit from the payment of other fees that are prescribed by law.

    R108.5 Refunds. The building official is authorized to establish a refund policy.

    R108.6 Work commencing before permit issuance. Any person who commences work requiring a permit on a building, structure, electrical, gas, mechanical or plumbing system before obtaining the necessary permits shall be subject to a fee established by the applicable governing authority that shall be in addition to the required permit fees.

    SECTION R109—INSPECTIONS

  • CRC § 1-22 High relevance — show source text

    1-22 2025 CALIFORNIA RESIDENTIAL CODE

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    DIVISION II SCOPE AND ADMINISTRATION

    R106.2 Site plan or plot plan. The construction documents submitted with the application for permit shall be accompanied by a site plan showing the size and location of new construction and existing structures on the site and distances from lot lines. In the case of demolition, the site plan shall show construction to be demolished and the location and size of existing structures and construction that are to remain on the site or plot. The building official is authorized to waive or modify the requirement for a site plan where the application for permit is for alteration or repair or where otherwise warranted.

    R106.3 Examination of documents. The building official shall examine or cause to be examined construction documents for code compliance.

    R106.3.1 Approval of construction documents. Where the building official issues a permit, the construction documents shall be approved in writing or by a stamp that states “REVIEWED FOR CODE COMPLIANCE.” One set of construction documents so reviewed shall be retained by the building official. The other set shall be returned to the applicant, shall be kept at the site of work and shall be open to inspection by the building official or a duly authorized representative.

    R106.3.2 Previous approvals. This code shall not require changes in the construction documents, construction or designated occupancy of a structure for which a lawful permit has been heretofore issued or otherwise lawfully authorized, and the construction of which has been pursued in good faith within 180 days after the effective date of this code and has not been abandoned.

    R106.3.3 Phased approval. The building official is authorized to issue a permit for the construction of foundations or any other part of a building or structure before the construction documents for the whole building or structure have been submitted, provided that adequate information and detailed statements have been filed complying with pertinent requirements of this code. The holder of such permit for the foundation or other parts of a building or structure shall proceed at the holder’s own risk with the building operation and without assurance that a permit for the entire structure will be granted.

    R106.4 Amended construction documents. Work shall be installed in accordance with the approved construction documents, and any changes made during construction that are not in compliance with the approved construction documents shall be resubmitted for approval as an amended set of construction documents.

    R106.5 Retention of construction documents. One set of approved construction documents shall be retained by the building official for a period of not less than 180 days from date of completion of the permitted work, or as required by state or local laws.

    SECTION R107—TEMPORARY STRUCTURES AND USES

    R107.1 General. The building official is authorized to issue a permit for temporary structures and temporary uses. Such permits shall be limited as to time of service, but shall not be permitted for more than 180 days. The building official is authorized to grant extensions for demonstrated cause.

    R107.2 Conformance. Temporary structures and uses shall conform to the structural strength, fire safety, means of egress, light, ventilation and sanitary requirements of this code as necessary to ensure the public health, safety and general welfare.

  • CRC § 106.6 High relevance — show source text

    [A] 106.6 Other data and substantiation. Where required by the code official, the plans and specifications shall include classification of fuel loading, fuel model light, medium or heavy, and substantiating data to verify classification of fire-smart vegetation.

    [A] 106.7 Vicinity plan. In addition to the requirements for site plans, plans shall include details regarding the vicinity within 300 feet (91 440 mm) of lot lines, including other structures, slope, vegetation, fuel breaks, water supply systems and access roads.

    [A] 106.8 Retention of plans. One set of approved plans, specifications and computations shall be retained by the code official for a period of not less than 180 days from date of completion of the permitted work or as required by state or local laws; and one set of approved plans and specifications shall be returned to the applicant, and said set shall be kept on the site of the building, use or work at all times during which the work authorized thereby is in progress. Refer to Building Standards Law, Health and Safety Code Sections 19850 and 19851 for permanent retention of plans.

    [A] 106.9 Examination of documents. The code official shall examine or cause to be examined the accompanying construction documents and shall ascertain by such examinations whether the construction indicated and described is in accordance with the requirements of this code and other pertinent laws or ordinances.

    [A] 106.10 Amended construction documents. Work shall be installed in accordance with the approved construction documents, and changes made during construction that are not in compliance with the approved documents shall be resubmitted for approval as an amended set of construction documents.

    [A] 106.11 Previous approvals. This code shall not require changes in the construction documents, construction or designated occupancy of a structure for which a lawful permit has been heretofore issued or otherwise lawfully authorized, and the construction of which has been pursued in good faith within 180 days after the effective date of this code and has not been abandoned.

    [A] 106.12 Phased approval. The code official is authorized to issue a permit for the construction of foundations or any other part of a building or structure before the construction documents for the whole building or structure have been submitted, provided that adequate information and detailed statements have been filed complying with pertinent requirements of this code. The holder of such permit for the foundation or other parts of a building or structure shall proceed at the holder’s own risk with the building operation and without assurance that a permit for the entire structure will be granted.

    SECTION 107—TEMPORARY USES, EQUIPMENT AND SYSTEMS

    [A] 107.1 General. The code official is authorized to issue a permit for temporary uses, equipment and systems. Such permits shall be limited as to time of service, but shall not be permitted for more than 180 days. The code official is authorized to grant extensions for demonstrated cause.

    [A] 107.2 Conformance. Temporary uses, equipment and systems shall conform to the requirements of this code as necessary to ensure health, safety and general welfare.

    [A] 107.3 Temporary service utilities. The code official is authorized to give permission to temporarily supply service utilities in accordance with Section 111.

    [A] 107.4 Termination of approval. The code official is authorized to terminate such permit for temporary uses, equipment and systems and to order the same to be discontinued.

    SECTION 108—FEES

  • CRC § 4-314 Medium relevance — show source text

    [DSA-SS, DSA-SS/CC] The classification of public-occupancy temporary structure shall not be applied to any school building as defined in Section 4-314 of the California Administrative Code.

    3103.1.1 Extended period of service time. Public-occupancy temporary structures shall be permitted to remain in service for 180 days or more without complying with requirements in this code for new building or structures where extensions for up to 1 year are granted by the Building Official in accordance with Section 108.1 and where the following conditions are satisfied:

    1. Additional inspections as determined by the building official shall be performed by a qualified person to verify that site conditions and the approved installation comply with the conditions of approval at the time of final inspection.
    2. A qualified person shall perform follow-up inspections after initial occupancy at intervals not exceeding 180 days to verify the site conditions and the installation conform to the approved site conditions and installation requirements. Inspection records shall be kept and shall be made available for verification by the building official.
    3. An examination shall be performed by a registered design professional to determine the adequacy of the temporary structure to resist the structural loads required in Section 3103.6.
    4. Relocation of the public-occupancy temporary structure shall require a new permit application.
    5. The use or occupancy approved at the time of final inspection shall remain unchanged.

    31-4 2025 CALIFORNIA BUILDING CODE

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    SPECIAL CONSTRUCTION

    1. A request for an extension is submitted to the building official. The request shall include records of the inspections and examination in Items 1 and 3.

    3103.1.2 Conformance. Temporary structures and uses shall conform to the structural strength, fire safety, means of egress, accessibility, light, ventilation and sanitary requirements of this code as necessary to ensure public health, safety and general welfare.

    3103.1.2.1 Water-filled vessels. [SFM] Water-filled vessels shall not be used to anchor a tent or membrane structure unless approved and in accordance with the tent or membrane structure manufacturer’s instructions. 3103.1.3 Permit required. Temporary structures that cover an area greater than 120 square feet (11.16 m [2] ), including connecting areas or spaces with a common means of egress or entrance that are used or intended to be used for the gathering together of 10 or more persons, shall not be erected, operated or maintained for any purpose without obtaining a permit from the building official.

    3103.2 Construction documents. A permit application and construction documents shall be submitted for each installation of a temporary structure. The construction documents, shall include a site plan indicating the location of the temporary structure and information delineating the means of egress and the occupant load.

    3103.3 Location. Temporary structures shall be located in accordance with the requirements of Table 705.5 based on the fire-resistance rating of the exterior walls for the proposed type of construction.

    3103.4 Means of egress. Temporary structures shall conform to the means of egress requirements of Chapter 10 and shall have an exit access travel distance of 100 feet (30 480 mm) or less.

    3103.5 Bleachers. Temporary bleachers, grandstands and folding and telescopic seating that are not building elements shall comply with ICC 300.

  • CRC § 107.1 Medium relevance — show source text

    SECTION 107—TEMPORARY STRUCTURES, USES, EQUIPMENT AND SYSTEMS

    [A] 107.1 General. The fire code official is authorized to issue a permit for temporary structures, uses, equipment or systems as required in Sections 105.5 and 105.6. Such permits shall be limited as to time of service, but shall not be permitted for more than 180 days. The fire code official is authorized to grant extensions for demonstrated cause.

    [A] 107.2 Conformance. Temporary uses, equipment and systems shall conform to the requirements of this code as necessary to ensure health, safety and general welfare.

    [A] 107.3 Temporary service utilities. The fire code official is authorized to give permission to temporarily supply service utilities in accordance with Section 110.

    [A] 107.4 Termination of approval. The fire code official is authorized to terminate such permit for temporary uses, equipment or systems and to order the same to be discontinued.

    SECTION 108—FEES

    [A] 108.1 Fees. A permit shall not be issued until the fees have been paid, nor shall an amendment to a permit be released until the additional fee, if any, has been paid.

    1-26 2025 CALIFORNIA FIRE CODE

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    DIVISION II—SCOPE AND ADMINISTRATION

    [A] 108.2 Schedule of permit fees. Where a permit is required, a fee for each permit shall be paid as required, in accordance with the schedule as established by the applicable governing authority.

    108.3 Permit valuations. The applicant for a permit shall provide an estimated value of the work for which the permit is being issued at the time of application. Such estimated valuations shall include the total value of work, including materials and labor, for which the permit is being issued, such as electrical, gas, mechanical, plumbing equipment and permanent systems. Where, in the opinion of the fire code official, the valuation is underestimated, the permit shall be denied unless the applicant can show detailed estimates acceptable to the fire code official. The fire code official shall have the authority to adjust the final valuation for permit fees.

    [A] 108.4 Work commencing before permit issuance. A person who commences any work, activity or operation regulated by this code before obtaining the necessary permits shall be subject to a fee established by the applicable governing authority, which shall be in addition to the required permit fees.

    [A] 108.5 Related fees. The payment of the fee for the construction, alteration, removal or demolition of work done in connection to or concurrently with the work or activity authorized by a permit shall not relieve the applicant or holder of the permit from the payment of other fees that are prescribed by law.

    [A] 108.6 Refunds. The applicable governing authority is authorized to establish a refund policy.

    SECTION 109—INSPECTIONS

    [A] 109.1 Inspection authority. The fire code official is authorized to enter and examine any building, structure, marine vessel, vehicle or premises in accordance with Section 104.4 for the purpose of enforcing this code.

  • CRC § 1-18 Medium relevance — show source text

    R104 Duties and Powers of the Building Official . . . . . . . 1-18

    R105 Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

    R106 Construction Documents . . . . . . . . . . . . . . . . . . . . . . 1-22

    R107 Temporary Structures and Uses . . . . . . . . . . . . . . . . 1-23

    R108 Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

    R109 Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

    R110 Certificate of Occupancy. . . . . . . . . . . . . . . . . . . . . . . 1-25

    R111 Service Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

    R112 Means of Appeals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

    R113 Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

    R114 Stop Work Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

    Part II—Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

    CHAPTER 2 DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

    R201 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

    R202 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

    Part III—Building Planning and Construction . . . . . . . . . . . .3-5

    CHAPTER 3 BUILDING PLANNING . . . . . . . . . . . . . . . . . . . . .3-5

    R300 Site Drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

    R301 Design Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

    R302 Fire-Resistant Construction . . . . . . . . . . . . . . . . . . . . 3-23

  • CRC § 1-10 Medium relevance — show source text

    1.11 Office of the State Fire Marshal . . . . . . . . . . . . . . . . . . . 1-10

    1.12 Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

    1.13 Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

    1.14 Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

    DIVISION II— SCOPE AND ADMINISTRATION . . . . . . . . . . . . . . . . . 1-17

    Part 1—Scope and Application. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

    R101 Scope and General Requirements. . . . . . . . . . . . . . . 1-17

    R102 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

    Part 2—Administration and Enforcement . . . . . . . . . . . . . . . . . 1-18

    R103 Code Compliance Agency . . . . . . . . . . . . . . . . . . . . . . 1-18

    R104 Duties and Powers of the Building Official . . . . . . . 1-18

    R105 Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

    R106 Construction Documents . . . . . . . . . . . . . . . . . . . . . . 1-22

    R107 Temporary Structures and Uses . . . . . . . . . . . . . . . . 1-23

    R108 Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

    R109 Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

    R110 Certificate of Occupancy. . . . . . . . . . . . . . . . . . . . . . . 1-25

    R111 Service Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

    R112 Means of Appeals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

    R113 Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

  • CRC § 302.1 Medium relevance — show source text

    EMERGENCY. Any event declared by local, state or federal entities that temporarily overwhelms response capabilities and that requires the temporary suspension or modification of regulations, codes or standards to facilitate response to such an event.

    TEMPORARY USE . An activity or practice that is established at a designated location for a period of less than 180 days. Uses include, but are not limited to, those functional designations listed within the occupancy group descriptions in Section 302.1 of the California Building Code .

    SECTION E103—SUBMITTAL DOCUMENTS

    E103.1 General. Submittal documents shall be of sufficient clarity to indicate the location, nature and extent of the work or use proposed and show in detail that it will conform to the provisions of this code and relevant laws, ordinances, rules and regulations, as determined by the code official.

    SECTION E104—CONFORMANCE

    E104.1 General. Temporary use of existing buildings shall conform to the structural strength, fire safety, means of egress, accessibility, light, ventilation and sanitary requirements of this code as necessary to provide a reasonable level of safety, health and general welfare as determined by the code official.

    E104.2 Changes over time. As an emergency evolves, submittal documents shall be submitted to demonstrate that the temporary uses of the existing buildings are in compliance with the requirements of this code.

    SECTION E105—PERMITS

    E105.1 Emergency permits. In an emergency situation, where an existing building undergoes a temporary change of use or occupancy, the permit application shall be submitted as soon as practicable to the code official.

    SECTION E106—GENERAL STANDARDS FOR EMERGENCY USES

    E106.1 Scope. The provisions of Sections E106.2 through E106.7 shall apply to all existing structures being repurposed and to all structures relocated to support the response to an emergency.

    E106.2 Intent. The intent of this section is to provide a reasonable level of safety in a structure repurposed for emergency use.

    E106.3 Change of use or occupancy. Existing buildings used in a way that was not originally intended by occupancy class or use shall be allowed without formally changing the occupancy. The previous occupancy and use shall resume upon the conclusion of the emergency . Where the temporary live load of the floor is more than that required by Section 1607 of the California Building Code for the original use, the area designated for the temporary live load shall be posted with placards for the approved live load.

    E106.4 Fire safety provisions. Determination of the fire safety requirements by the code official shall be in accordance with Section E106.4.1 through E106.4.5 in order to make determinations of safe conditions rather than strict adherence to the provisions of the California Fire Code .

    2025 CALIFORNIA EXISTING BUILDING CODE APPENDIX E-3

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

    APPENDIX E—TEMPORARY EMERGENCY USES

    E106.4.1 Fire safety and evacuation plans. Fire safety and evacuation plans shall be provided in accordance with Sections 403 and 404 of the California Fire Code . Submittal documents shall be updated where there are any physical changes to the layout of the structure.

  • CRC § 5.1 Medium relevance — show source text

    General 1.1 Dept. of Housing and Community Development 1.8 Office of the State Fire Marshal 1.11 Administration, Division II Chapter 1 Applicability R102 Certificate of occupancy R110 Construction documents R106 Department of building safety R103 Duties and Powers R104

    Fees R106

    Inspections R109 Means of appeals R112 Permits R105, R105.5.1 Purpose R101.3 Service utilities R111 Stop work order R114 Temporary structures and uses R107 Violations R113 Aging-in-place Design and Fall Prevention R327

    Doorbell buttons R327.1.4 Electrical receptacle outlet, switch and control heights R327.1.2 Interior doors R327.1.3 Reinforcement for grab bars R327.1.1 Allowable Spans Of floor joists R502.3, R505.3.2 Of headers R602.7, R603.6 Of rafters and ceiling joists R802.4, R802.5, R804.3.1, R804.3.2 Alternate Materials (see Materials) R104.11 Alterations (see Existing Buildings) Anchor Bolts R403.1.6

    Appeal Board of 1.8.8, Appendix AA Means of 1.8.8, R112 Appliance Flue area R1003.14

    Seismic constraint R301.2.2.10

    Area Flue (appliances) R1003.14 Flue masonry R1003.15 Mezzanines R314.3

    Room, minimum R312 Sleeping lofts R315.1, R315.2, R315.4 Area Wells R319.4

    INDEX

    Attic

    Access R807

    Habitable R316 Height R313.1.2 Ventilation R806 Automatic Sprinkler Systems R101.2, R309 Automotive Lifts R317.7

    Backfill

    Placement R404.1.7, R404.2.3, R404.2.4, R406.3.3, R406.3.4

    Basements

    Alterations R319.7 Ceiling height R313 Egress R318.4 Emergency escape and rescue openings R319.6 Bathroom R313.1, R326, R327 Exhaust fan R325.2.1

    Bathtub R326.1, R327 Enclosure R324.3.1, R324.4.5, R325.2 Finish R327.2 Space required R327.1 Board of Appeals (see Means of Appeal) Building Official Duties and powers R104 Built-Up Roofing (see Roofing)

    Carbon Monoxide Alarms R311

    Care Facilities R101.2, R322.3 Carports R317.2, R317.3 Ceiling Finishes R302.9, R805 Height R313 Certificate of Occupancy R110 Change of Occupancy R110.1 Emergency escape and rescue openings R319.5, R319.7.1 Chases R606.8

  • CRC § 3105.1 Medium relevance — show source text

    (d) Certificates of Flame Resistance or other documentation affirming the requirements of California Code of Regulations, Title 19, Division 1, Section 315, subsection (a) shall be made available upon request of the enforcement authority.

    SECTION 3105—TEMPORARY SPECIAL EVENT STRUCTURES

    3105.1 General. Temporary special event structures shall comply with Section 3104, Sections 3105.2 through 3105.8 and ANSI E1.21.

    3105.2 Approval. Temporary special event structures required to have a permit, as set forth in Sections 105.5 and 105.6, shall not be erected, operated or maintained for any purpose without first obtaining approval and a permit from the fire code official and the building official.

    3105.3 Use period. Temporary special event structures erected in accordance with ANSI E1.21 shall not be erected for a period of more than six consecutive weeks.

    3105.4 Required documents. The following documents shall be submitted to the fire code official and the building official for review before a permit is approved:

    1. Construction documents: Construction documents shall be prepared by a registered design professional in accordance with the California Building Code and ANSI E1.21 where applicable. Construction documents shall include: 1.1. A summary sheet showing the building code used, design criteria, loads and support reactions. 1.2. Detailed construction and installation drawings. 1.3. Design calculations. 1.4. Operating limits of the structure explicitly outlined by the registered design professional including environmental conditions and physical forces. 1.5. Effects of additive elements such as video walls, supported scenery, audio equipment, vertical and horizontal coverings. 1.6. Means for adequate stability including specific requirements for guying and cross-bracing, ground anchors or ballast for different ground conditions.
    2. Designation of responsible party: The owner of the temporary special event structure shall designate in writing a person to have responsibility for the temporary special event structure on the site. The designated person shall have sufficient knowledge of the construction documents, manufacturer’s recommendations and operations plan to make judgments regarding the structure’s safety and to coordinate with the fire code official.
    3. Operations plan: The operations plan shall reflect manufacturer’s operational guidelines, procedures for environmental monitoring and actions to be taken under specified conditions consistent with the construction documents.

    3105.5 Inspections. Inspections shall comply with Section 109 and Sections 3105.5.1 and 3105.5.2.

    3105.5.1 Independent inspector. The owner of a temporary special event structure shall employ a qualified, independent approved agency or individual to inspect the installation of a temporary special event structure.

    3105.5.2 Inspection report. The inspecting agency or individual shall furnish an inspection report to the fire code official. The inspection report shall indicate that the temporary special event structure was inspected and was or was not installed in accordance with the approved construction documents. Discrepancies shall be brought to the immediate attention of the installer for correction. Where any discrepancy is not corrected, it shall be brought to the attention of the fire code official and the designated responsible party.

    3105.6 Means of egress. The means of egress for temporary special event structures shall comply with Chapter 10.

    3105.7 Location. Temporary special event structure shall be located a distance from property lines and buildings to accommodate distances indicated in the construction drawings for guy wires, cross-bracing, ground anchors or ballast. Location shall not interfere with egress from a building or encroach on fire apparatus access roads.

  • California Residential Code Medium relevance — show source text

    G112.6 Decks, porches, and patios. Decks, porches and patios shall be designed and constructed in accordance with ASCE 24.

    G112.7 Nonstructural concrete slabs in coastal high-hazard areas and coastal A zones. In coastal high-hazard areas and coastal A zones, nonstructural concrete slabs used as parking pads, enclosure floors, landings, decks, walkways, patios and similar nonstructural uses are permitted beneath or adjacent to buildings and structures provided that the concrete slabs shall be constructed in accordance with ASCE 24.

    G112.8 Roads and watercourse crossings in regulated floodways. Roads and watercourse crossings that encroach into regulated floodways, including roads, bridges, culverts, low-water crossings and similar means for vehicles or pedestrians to travel from one side of a watercourse to the other, shall meet the requirement of Section G104.5.

    SECTION G113—TEMPORARY STRUCTURES AND TEMPORARY STORAGE

    G113.1 Temporary structures. Temporary structures shall be erected for a period of less than 180 days. Temporary structures shall be anchored to prevent flotation, collapse or lateral movement resulting from hydrostatic loads, including the effects of buoyancy, during conditions of the design flood. Fully enclosed temporary structures shall have flood openings that are in accordance with ASCE 24 to allow for the automatic entry and exit of floodwaters.

    G113.2 Temporary storage. Temporary storage includes storage of goods and materials for a period of less than 180 days. Stored materials shall not include hazardous materials.

    G113.3 Floodway encroachment. Temporary structures and temporary storage in floodways shall meet the requirements of G104.5.

    SECTION G114—UTILITY AND MISCELLANEOUS GROUP U

    G114.1 Utility and miscellaneous Group U. Utility and miscellaneous Group U includes buildings that are accessory in character and miscellaneous structures not classified in any specific occupancy in this code, including, but not limited to, agricultural buildings, aircraft hangars (accessory to a one- or two-family residence), barns, carports, fences more than 6 feet (1829 mm) high, grain silos (accessory to a residential occupancy), greenhouses, livestock shelters, private garages, retaining walls, sheds, stables and towers.

    G114.2 Flood loads. Utility and miscellaneous Group U buildings and structures, including substantial improvement of such buildings and structures, shall be anchored to prevent flotation, collapse or lateral movement resulting from flood loads, including the effects of buoyancy, during conditions of the design flood.

    G114.3 Elevation. Utility and miscellaneous Group U buildings and structures, including substantial improvement of such buildings and structures, shall be elevated such that the lowest floor, including basement, is elevated to or above the design flood elevation in accordance with Section 1612 of this code.

    G114.4 Enclosures below design flood elevation. Fully enclosed areas below the design flood elevation shall be constructed in accordance with ASCE 24.

    G114.5 Flood-damage-resistant materials. Flood-damage-resistant materials shall be used below the design flood elevation.

    G114.6 Protection of mechanical, plumbing and electrical systems. Mechanical, plumbing and electrical systems, including plumbing fixtures, shall be elevated to or above the design flood elevation.

  • CRC § 1010.2.3 Medium relevance — show source text

    Hardware 1010.2.3 Toilet facilities for public pools Chapter 29

    Technical Production Areas 410.2.2, 410.5.3 Telephone Exchanges 304 Telescopic Seating (see Bleachers) Temporary Structures 3103 Certificate of occupancy 108.3, 111.3 Conformance 108.2, 3103.1.2 Construction documents 3103.2 Encroachment, public rights-ofway 3202.3 Flood provisions G113 Means of egress 3103.4 Permit 108.1, 3103.1.3 Power, temporary 108.3, 112.2 Structural 3103.6 Termination of approval 108.4 Tenant Separation Covered and open mall building 402.4.2.1, 708.1 Tents (see Temporary Structures) Termites, Protection From 2304.12 Terra Cotta 1404.10, 1411

    INDEX-20 2025 CALIFORNIA BUILDING CODE

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

    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

  • CRC § 1.8.10 Medium relevance — show source text

    Division 1, Chap-_ ter 3, Subchapter 1, commencing with Section 3000.

    SECTION 1.8.10—OTHER BUILDING REGULATIONS

    1.8.10.1 Existing structures. Notwithstanding other provisions of law, the replacement, retention and extension of original materials and the use of original methods of construction for any existing building or accessory structure, or portions thereof, shall be permitted in accordance with the provisions of this code and the California Existing Building Code, as adopted by the Department of Housing and Community Development. For additional information, see California Health and Safety Code, Sections 17912, 17920.3, 17922 and 17958.8.

    1.8.10.2 Moved structures. Subject to the requirements of California Health and Safety Code Sections 17922, 17922.3 and 17958.9, local ordinances or regulations relating to a moved residential building or accessory structure thereto, shall permit the replacement, reten- tion and extension of original materials and the use of original methods of construction so long as the structure does not become or continue to be a substandard building.

    SECTION 1.9—DIVISION OF THE STATE ARCHITECT

    1.9.1 Division of the State Architect—Access Compliance.

    General. The purpose of this code is to ensure that barrier-free design is incorporated in all buildings, facilities, site work and other improvements to which this code applies in compliance with state law to ensure that these improvements are accessible to and usable by persons with disabilities. Additions, alterations and structural repairs in all buildings and facilities shall comply with these provisions for new buildings, except as otherwise provided and specified herein.

    The provisions of these regulations shall apply to any portable buildings leased or owned by a school district, and shall also apply to temporary and emergency buildings and facilities. Temporary buildings and facilities are not of permanent construction but are exten- sively used or are essential for public use for a period of time. Examples of temporary buildings or facilities covered include, but are not limited to: reviewing stands, temporary classrooms, bleacher areas, exhibit areas, temporary banking facilities, temporary health screening services or temporary safe pedestrian passageways around a construction site.

    In addition, to incorporate standards at least as restrictive as those required by the federal government for barrier-free design under (1) Title III (Public Accommodations and Commercial Facilities), Subpart D (New Construction and Alteration) (see 28 C.F.R., Part 36), and (2) Title II (Public Entities), Section 35.151 (New Construction and Alterations) (see 28 C.F.R., Part 35) both from the Americans with Disabilities Act of 1990, 2004 Americans with Disabilities Act Accessibility Guidelines, as adopted by the U.S. Department of Justice (see 36 C.F.R. Part 1191, Appendices B and D), and (3) under the Fair Housing Amendments Act of 1988. Some of these regulations may be more stringent than state law in order to meet the federal requirement.

    1.9.1.1 Application. See Government Code commencing with Section 4450.

    Publicly funded buildings, structures, sidewalks, curbs and related facilities shall be accessible to and usable by persons with disabilities as follows:

Frequently asked questions

What if I need a temporary structure for longer than 180 days?

You must request an extension from the building official and show demonstrated cause (safety documentation, inspection records, etc.). The building official has discretion to grant or deny the extension. See § R107.1.

Do temporary structures have to meet the same fire and egress rules as permanent buildings?

Yes — temporary structures must conform to necessary structural, fire safety and means-of-egress requirements to protect health and safety, as required by § R107.2.

Can I get temporary power before final inspection?

Yes; the building official can permit temporary power to part of an installation if it meets the applicable temporary-power rules and the California Electrical Code, per § R107.3.

Are there faster rules for emergency temporary uses?

Yes. Appendix E (Existing Building Code) contains provisions for temporary emergency uses and expedited permit submission during emergencies; those rules are applied when an emergency triggers them.

Do special-event tents follow the same 180‑day rule?

Special-event temporary structures often have their own limits and requirements (for instance, different short-term use periods and inspection/operations plans in the CBC and Fire Code). Check the CBC/Fire Code sections on temporary special event structures for the event-specific limits and requirements.

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