CMC · California Mechanical Code

Administration

Chapter 1 (Administration) of the CMC defines the code’s scope and adoption, assigns enforcement duties, and groups the permit, plan‑review, inspection and enforcement procedures.

Last reviewed: July 6, 2026

Overview

Chapter 1 of the California Mechanical Code (CMC) contains the Administration provisions that establish the code’s title, purpose and scope (for example, §1.1.1–§1.1.3) and the state‑level framework for adopting the Uniform Mechanical Code with California amendments . These opening provisions explain what the CMC regulates and why (public health, safety and welfare) and where the state‑level rules apply .

The operational "Administration and Enforcement" material appears in the Part 2 table of contents and gathers the day‑to‑day rules code users need: Code Compliance Agency (§103), Duties and Powers of the building/code official (§104), Permits (§105), Construction Documents (§106), Inspections (§109), Certificate of Occupancy (§110), Means of Appeals (§112), violations and stop‑work authority, and related remedies — all of which drive permitting, plan review, inspections and enforcement practice under the CMC . Use this hub to find the specific sections and links to the procedural pages (permits, inspections, appeals, enforcement) that implement those duties.

In this section

Code references

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

  • CMC § 1-22 Medium relevance — show source text

    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

    113 Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

    114 Stop Work Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

    115 Unsafe Structures and Equipment . . . . . . . . . . . . . . 1-31

    116 Emergency Measures . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32

    117 Demolition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32

    CHAPTER 2 DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

    201 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

    202 General Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

    CHAPTER 3 PROVISIONS FOR ALL COMPLIANCE

    METHODS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

    301 Administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

  • California Mechanical Code Medium relevance — show source text


    2
    5
    10
    15|36
    38
    51
    NA
    NA|93
    69
    63
    NA
    NA|57
    47
    44
    39
    NA|56
    57
    75
    95
    NA|190
    136
    128
    116
    NA|111
    93
    86
    79
    72|80
    80
    102
    128
    158|325
    225
    216
    201
    186|186
    149
    140
    131
    124|116
    115
    144
    182
    220|499
    337
    326
    308
    290|283
    224
    217
    203
    192|153
    148
    182
    228
    272|713
    473
    459
    438
    418|388
    314
    298
    284
    269| |20|0
    2
    5
    10
    15
    20|35
    37
    50
    NA
    NA
    NA|96
    74
    68
    NA
    NA
    NA|60
    50
    47
    41
    NA
    NA|54
    56
    73
    93
    NA
    NA|200
    148
    140
    129
    NA
    NA|118
    99
    94
    86
    80
    NA|78
    78
    100
    125
    155
    186|346
    248
    239
    223
    208
    192|201
    165
    158
    146
    136
    126|114
    113
    141
    177
    216
    254|537
    375
    363
    344
    325
    306|306
    248
    239
    224
    210
    196|149
    144
    178
    222
    264
    309|772
    528
    514
    491
    469
    448|428
    344
    334
    316
    301
    285| |30|0
    2
    5

  • CMC § 1-24 Medium relevance — show source text

    102 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

    Part 2—Administration and Enforcement . . . . . . . . . . . . . . . . . 1-24

    103 Code Compliance Agency . . . . . . . . . . . . . . . . . . . . . . 1-24

    104 Duties and Powers of Building Official. . . . . . . . . . . 1-25

    105 Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

    106 Floor and Roof Design Loads . . . . . . . . . . . . . . . . . . . 1-29

    107 Construction Documents . . . . . . . . . . . . . . . . . . . . . . 1-29

    108 Temporary Structures, Equipment and Systems . . . . . . . . . . . . . . . . . . . . . 1-31

    109 Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

    110 Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

    111 Certificate of Occupancy. . . . . . . . . . . . . . . . . . . . . . . 1-33

    112 Service Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33

    113 Means of Appeals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33

    114 Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34

    115 Stop Work Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34

    CHAPTER 2 DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

    201 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

    202 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

    CHAPTER 3 OCCUPANCY CLASSIFICATION AND USE . . . . .3-1

    301 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

    302 Occupancy Classification and Use Designation . . . . 3-3

  • CMC § 8.10 Medium relevance — show source text

    1.8.10 Other Building Regulations . . . . . . . . . . . . . . . . . . . . . . 1-13

    1.9 Division of the State Architect . . . . . . . . . . . . . . . . . . . . 1-13

    1.10 Department of Health Care Access and Information/Office of Statewide Hospital Planning and Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

    1.11 Office of the State Fire Marshal . . . . . . . . . . . . . . . . . . . 1-17

    1.12 State Librarian. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

    1.13 Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

    1.14 California State Lands Commission . . . . . . . . . . . . . . . 1-22

    DIVISION II – SCOPE AND ADMINISTRATION . . . . . . . . . . . . 1-23

    Part 1—Scope and Application. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

    101 Scope and General Requirements. . . . . . . . . . . . . . . 1-23

    102 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

    Part 2—Administration and Enforcement . . . . . . . . . . . . . . . . . 1-24

    103 Code Compliance Agency . . . . . . . . . . . . . . . . . . . . . . 1-24

    104 Duties and Powers of Building Official. . . . . . . . . . . 1-25

    105 Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

    106 Floor and Roof Design Loads . . . . . . . . . . . . . . . . . . . 1-29

    107 Construction Documents . . . . . . . . . . . . . . . . . . . . . . 1-29

    108 Temporary Structures, Equipment and Systems . . . . . . . . . . . . . . . . . . . . . 1-31

    109 Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

    110 Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

    111 Certificate of Occupancy. . . . . . . . . . . . . . . . . . . . . . . 1-33

  • CMC § 10.5 Medium relevance — show source text

    10.5 and subsections_|||||||||||||||X|||||||||| |1.10.6 and subsections||||||||||||||||X||||||||| |1.11.0 through 1.11.11|||X|||||||||||||||||||||| |1.12.0|||||||||||||||||||||||X|| |1.13.0||||||||||||||||||||X||||| |1.14.0||||||||||||||||||||||||X| |Division II –
    Scope and Administration||||||||||||||||||||||||| |101.0 – 104.1||||||||||X|X|X|X|X|X|||||||||| |104.2 (Items 1 – 5)||||X|X|||||||||||||||||||| |104.3 – 107.0||||||||||X|X|X|X|X|X|||||||||| |104.4.3.1|X||||||||||||||||||||||||

    This 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 1.11.0.

    2 2025 CALIFORNIA MECHANICAL CODE

    ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

    CHAPTER 1

    ADMINISTRATION

    DIVISION I CALIFORNIA ADMINISTRATION

    1.1.0 General.

    1.1.1 Title. These regulations shall be known as the California Mechanical Code, may be cited as such and will be referred to herein as “this code.” The California Mechanical Code is Part 4 of thirteen parts of the official compilation and publi- cation of the adoption, amendment, and repeal of mechanical regulations to the California Code of Regulations, Title 24, also referred to as the California Building Standards Code. This part incorporates by adoption the 2024 Uniform Mechan- ical Code of the International Association of Plumbing and Mechanical Officials with necessary California amendments.

    1.1.2 Purpose. The purpose of this code is to establish the minimum requirements to safeguard the public health, safety and general welfare through structural strength, means of egress facilities, stability, access to persons with disabilities, sanitation, adequate lighting and ventilation, and energy conservation; safety to life and property from fire and other hazards attributed to the built environment; and to provide safety to fire fighters and emergency responders during emer- gency operations.

    1.1.3 Scope. The provisions of this code shall apply to the construction, alteration, movement, enlargement, replace- ment, repair, equipment, use and occupancy, location, main- tenance, removal, and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures throughout the State of California.

  • CMC § 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

  • CMC § 1.1.10 Medium relevance — show source text

    1.1.10 Availability of Codes. At least one complete copy each of Titles 8, 19, 20, 24, and 25 with all revisions shall be main- tained in the office of the building official responsible for the administration and enforcement of this code. Each state department concerned and each city, county, or city and county shall have an up-to-date copy of the code available for public inspection, see Health and Safety Code Section 18942(e)(1) and (2).

    1.1.11 Format. This part fundamentally adopts the Uniform Mechanical Code by reference on a chapter-by-chapter basis. When a specific chapter of the Uniform Mechanical Code is not printed in the code and is marked “Reserved”, such chapter of the Uniform Mechanical Code is not adopted as a portion of this code. When a specific chapter of the Uniform Mechanical Code is marked “Not adopted by the State of California” but appears in the code, it may be available for adoption by local ordinance.

    Note: Matrix Adoption Tables at the front of each chapter may aid the code user in determining which chapter or sections within a chapter are applicable to buildings under the authority of a specific state agency, but they are not to be considered regulatory.

    1.1.12 Validity. If any chapter, section, subsection, sentence, clause, or phrase of this code is for any reason held to be unconstitutional, contrary to statute, exceeding the authority of the state as stipulated by statutes or otherwise inoperative, such decision shall not affect the validity of the remaining portion of this code.

    1.2.0 Building Standards Commission.

    1.2.1 BSC. Specific scope of application of the agency responsible for enforcement, the enforcement agency, and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

    (1) State Buildings for All Occupancies.

    Application – State buildings (all occupancies), including buildings constructed by the Trustees of the California State University (CSU) and the Regents of the University of California (UC) where no state agency has the authority to adopt building standards applicable to such buildings.

    Enforcing Agency – State or local agency specified by the applicable provisions of law.

    Authority Cited – Health and Safety Code Section 18934.5.

    2025 CALIFORNIA MECHANICAL CODE 5

    ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

    DIVISION I CALIFORNIA ADMINISTRATION

    Reference – Health and Safety Code, Division 13, Part 2.5, commencing with Section 18901.

    (2) University of California, California State Universities, and California Community Colleges.

    Application – Standards for lighting for parking lots and primary campus walkways at the University of Cali- fornia, California State Universities, and California Community Colleges.

    Enforcing Agency – State or local agency specified by the applicable provisions of law.

    Authority Cited – Government Code Section 14617.

    Reference – Government Code Section 14617.

  • CMC § 1.8.3.2.1 Medium relevance — show source text

    1.8.3.2.1 State Housing Law. Refer to the State Housing Law, California Health and Safety Code, Division 13, Part 1.5, commencing with Section 17910, and California Code of Regulations, Title 25,

    8 2025 CALIFORNIA MECHANICAL 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

    Division 1, Chapter 1, Subchapter 1, commencing with Section 1, for the erection, construction, recon- struction, movement, enlargement, conversion, alter- ation, repair, removal, demolition, or arrangement of apartments, condominiums, hotels, motels, lodging houses, and dwellings, including accessory buildings, facilities, and uses thereto.

    1.8.3.2.2 Mobilehome Parks Act. Refer to the Mobilehome Parks Act, California Health and Safety Code, Division 13, Part 2.1, commencing with Section 18200 and California Code of Regula- tions, Title 25, Division 1, Chapter 2, commencing with Section 1000 for mobilehome park administra- tive and enforcement authority, permits, plans, fees, violations, inspections, and penalties both within and outside mobilehome parks. Exception: Mobilehome parks where the Depart- ment of Housing and Community Development is the enforcing agency. 1.8.3.2.3 Special Occupancy Parks Act. Refer to the Special Occupancy Parks Act, California Health and Safety Code, Division 13, Part 2.3, commencing with Section 18860 and California Code of Regulations, Title 25, Division 1, Chapter 2.2, commencing with Section 2000 for special occupancy park administra- tive and enforcement authority, permits, fees, viola- tions, inspections, and penalties both within and outside of special occupancy parks. Exception: Special occupancy parks where the Department of Housing and Community Develop- ment is the enforcing agency. 1.8.3.2.4 Employee Housing Act. Refer to the Employee Housing Act, California Health and Safety Code, Division 13, Part 1, commencing with Section 17000 and California Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 3, commencing with Section 600 for employee housing administrative and enforcement authority, permits, fees, violations, inspections, and penalties. 1.8.3.2.5 Factory-Built Housing Law. Refer to the Factory-Built Housing Law, California Health and Safety Code, Division 13, Part 6, commencing with Section 19960 and California Code of Regulations, Title 25, Division 1, Chapter 3, Subchapter 1, commencing with Section 3000 for factory-built housing administrative and enforcement authority, permits, fees, violations, inspections, and penalties. 1.8.4 Permits, Fees, Applications, and Inspections. _**1.8.4.1 Permits.

  • CMC § 04-15 Medium relevance — show source text

    . . . . . . . . . 063928

    Table 1 Description of Items to be Furnished and Installed by Customer
    Item Description
    1 Option 1: Meter Adapter, Cooper B-Line Cat. No. MARR20L45GRSD
    (160A) Use with Customer’s Panel Rated at 160A Continuous1, 2
    1 Option 2: Meter Adapter, Ekstrom Industries No. 722B (175A). Specify Left, Right, or Bottom Hub
    2 Combination Service Meter and Breaker Panel (rating as required)
    3 Pull Termination Box, 8” x 12” x 4”, Rain-Tight, Circle A-W (Cooper B-Line) No. R-9007A or Equivalent (see Note
    4M on Page 2)
    4 Conduit, See Notes 4C and 4G on Page 1
    5 Hub to Be Closed and Made Tamper Proof
    6
    Pull Termination Box, 12” x 26” x 6”, Rain-Tight, Circle A-W Catalog Number R-90008, or Equivalent
    (see Note 4K on Page 2)

    1 Fifth jaw accessory, use Cooper B-Line Cat. No. 50365. 2 Reducer hub and gasket accessories for 2” conduit, use Cooper B-Line Cat. No. AW200 and 12750A.

    061032 Page 2 of 4 Rev. #04: 04-15-11

    UG-1: Services Greenbook Residential and Small Commercial Overhead to Underground Electric Service Conversion

    Optional Removable by Customer
    To Be Removed
    by PG&E
    Meter Socket (see Figure 2 through Figure 7 on Pages 3 through 4)
    For Riser and Pull Box Detail (see Figure 2 through Figure 7 on Pages 3 through 4)
    For Gas and Water Sealing Requirements,
    see Documents 063927 and Document 063928
    48” Min.
    72” Max.
    Customer Shall Dig and Backfill Trench
    (see Note 4B on Page 1)
    Min. Bend
    Depth
    To PG&E Distribution System
    As required by
    Col2 Col3
    Customer Shall Dig and Backfill Trench
    (see Note 4B on Page 1)
    For Riser and Pull Box Detail (see Figure 2 through Figure 7 on Pages 3 through 4)
    Meter Socket (see Figure 2 through Figure 7 on Pages 3 through 4)
    To Be Removed
    by PG&E
    For Gas and Water Sealing Requirements,
    seeDocuments 063927 andDocument 063928
    To PG&E Distribution System
    Optional Removable by Customer
    48” Min.
    72” Max.
    As required by
    Min. Bend
    Depth

    Document 063927 and Document 063928

    Figure 1 Typical Service Conversion

    PG&E Service Termination Point

    See Note 4K on Page 2

    PG&E Service Termination Point (see Note 4L on Page 2)

  • CMC § 04-15 Medium relevance — show source text

    . . . . . . . . . . . . . . . . . . . UG-1: Services/Greenbook . . . . . . . . . . . . . . . . . . 063927 Methods and Requirements for Installing Commercial Underground Electric Services 0−600 Volts to Customer-Owned Facilities . . . . . . . . . . . . . . . . . . . . UG-1: Services/Greenbook . . . . . . . . . . . . . . . . . . 063928

    Table 1 Description of Items to be Furnished and Installed by Customer
    Item Description
    1 Option 1: Meter Adapter, Cooper B-Line Cat. No. MARR20L45GRSD
    (160A) Use with Customer’s Panel Rated at 160A Continuous1, 2
    1 Option 2: Meter Adapter, Ekstrom Industries No. 722B (175A). Specify Left, Right, or Bottom Hub
    2 Combination Service Meter and Breaker Panel (rating as required)
    3 Pull Termination Box, 8” x 12” x 4”, Rain-Tight, Circle A-W (Cooper B-Line) No. R-9007A or Equivalent (see Note
    4M on Page 2)
    4 Conduit, See Notes 4C and 4G on Page 1
    5 Hub to Be Closed and Made Tamper Proof
    6
    Pull Termination Box, 12” x 26” x 6”, Rain-Tight, Circle A-W Catalog Number R-90008, or Equivalent
    (see Note 4K on Page 2)

    1 Fifth jaw accessory, use Cooper B-Line Cat. No. 50365. 2 Reducer hub and gasket accessories for 2” conduit, use Cooper B-Line Cat. No. AW200 and 12750A.

    061032 Page 2 of 4 Rev. #04: 04-15-11

    UG-1: Services Greenbook Residential and Small Commercial Overhead to Underground Electric Service Conversion

  • CMC § 11.0 Medium relevance — show source text

    11.0 - 1.11.11_|||X|||||||||||||||||||||| |1.13.0||||||||||||||||||||X||||| |Division II - Scope and
    Administration||||||||||||||||||||||||| |101.0||||||||||X|X|X||X|X|||||||||| |102.0||||||||||X|X|X||X|X|||||||||| |103.0||||||||||X|X|X||X|X|||||||||| |104.2 Items 1 & 2||||X|X|||||||||||||||||||| |104.3.1||||||||||X|X|X||X|X|||||||||| |104.4.3.1|X|||||||||||||||||||||||| |105.0||||||||||X|X|X||X|X||||||||||

    This 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 1.11.0.

    2 2025 CALIFORNIA PLUMBING CODE

    ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

    CHAPTER 1

    ADMINISTRATION

    DIVISION I

    CALIFORNIA ADMINISTRATION

    1.1.0 General.

    1.1.1 Title. These regulations shall be known as the Califor- nia Plumbing Code, may be cited as such and will be referred to herein as “this code.” The California Plumbing Code is Part 5 of thirteen parts of the official compilation and publi- cation of the adoption, amendment, and repeal of plumbing regulations to the California Code of Regulations, Title 24, also referred to as the California Building Standards Code. This part incorporates by adoption the 2024 Uniform Plumb- ing Code of the International Association of Plumbing and Mechanical Officials with necessary California amendments.

    1.1.2 Purpose. The purpose of this code is to establish the minimum requirements to safeguard the public health, safety and general welfare through structural strength, means of egress facilities, stability, access to persons with disabilities, sanitation, adequate lighting and ventilation, and energy con- servation; safety to life and property from fire and other haz- ards attributed to the built environment; and to provide safety to fire fighters and emergency responders during emergency operations.

    1.1.3 Scope. The provisions of this code shall apply to the construction, alteration, movement, enlargement, replace- ment, repair, equipment, use and occupancy, location, main- tenance, removal, and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures throughout the State of California.

  • CMC § 7-115 Medium relevance — show source text

    1704 A .1 General. Special inspections and tests, statements of special inspections, responsibilities of contractors, submittals to the building official and structural observations shall meet the applicable requirements of this section.

    1704 A .2 Special inspections and tests. Where application is made to the building official for construction as specified in Section 105 the owner shall employ one or more approved agencies to provide special inspections and tests during construction on the types of work specified in Section 1705 A and identify the approved agencies to the building official. These special inspections and tests are in addition to the inspections by the building official that are identified in Section 110.

    [OSHPD 1 & 4] The inspectors shall act under the direction of the architect or structural engineer or both, and be responsible to the Owner. Where the California Administrative Code (CAC) Section 7-115 (a) 2 permits construction documents to be prepared under the

    17A-4 2025 CALIFORNIA BUILDING CODE

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

    SPECIAL INSPECTIONS AND TESTS

    responsible charge of a mechanical, electrical or civil engineer, inspectors shall be permitted to work under the direction of engineer in appropriate branch as permitted therein.

    Exceptions:

    1. Special inspections and tests are not required for construction of a minor nature or as warranted by conditions in the jurisdiction as approved by the building official.
    2. [DSA-SS, DSA-SS/CC] Reference to Section 105 and Section 110 shall be to the California Administrative Code instead.

    1704 A .2.1 Special inspector qualifications. Prior to the start of the construction, the approved agencies shall provide written documentation to the building official demonstrating the competence and relevant experience or training of the special inspectors who will perform the special inspections and tests during construction. Experience or training shall be considered to be relevant where the documented experience or training is related in complexity to the same type of special inspection or testing activities for projects of similar complexity and material qualities. These qualifications are in addition to qualifications specified in other sections of this code.

    The registered design professional in responsible charge and engineers of record involved in the design of the project are permitted to act as an approved agency and their personnel are permitted to act as special inspectors for the work designed by them, provided they qualify as special inspectors.

    1704 A .2.2 Access for special inspection. The construction or work for which special inspection or testing is required shall remain accessible and exposed for special inspection or testing purposes until completion of the required special inspections or tests.

    1704 A .2.3 Statement of special inspections. The applicant shall submit a statement of special inspections prepared by the regis- tered design professional in general responsible charge in accordance with Section 107.1 as a condition for construction documents review . This statement shall be in accordance with Section 1704 A .3.

    [DSA-SS, DSA-SS/CC] Reference to Section 107.1 shall be to the California Administrative Code instead.

    1704 A .2.4 Report requirement. The inspector(s) of record and approved agencies shall keep records of special inspections and tests.

Frequently asked questions

What does the Administration chapter cover?

It sets out the CMC’s title, purpose and scope (Division I), adoption structure, and the procedural rules (Division II/Part 2) that govern who enforces the code and how permits, plans, inspections, certificates and enforcement actions are handled .

Which sections control permits and inspections?

Permits are covered in §105 and the inspection provisions are in §109; together with §106 (construction documents) these sections define what must be submitted and when inspections are required .

Who has enforcement authority and how are appeals handled?

Authority and duties are assigned to the code/building official in §104, the enforcing agency is identified in §103, and appeals are processed under the Means of Appeals provisions (for example §112) listed in the Administration/Enforcement part of the code .

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