Overview & applicability

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

• CMC § 102.4 Medium relevance — show source text

  ADMINISTRATION

  DIVISION II SCOPE AND ADMINISTRATION

  User notes:

  About this chapter: Chapter 1 establishes the limits of applicability of the code and describes how the code is to be applied and enforced. Chapter 1 is in two parts: Part 1—Scope and Application (Sections 101–102) and Part 2—Administration and Enforcement (Sections 103–116). Section 101 identifies which buildings and structures come under its purview and references other ICodes as applicable. Standards and codes are scoped to the extent referenced (see Section 102.4).

  This code is intended to be adopted as a legally enforceable document and it cannot be effective without adequate provisions for its administration and enforcement. The provisions of Chapter 1 establish the authority and duties of the code official appointed by the authority having jurisdiction and also establish the rights and privileges of the design professional, contractor and property owner. Chapter 1 is largely concerned with maintaining “due process of law” in enforcing the building performance criteria contained in the body of the code.

  ICC code development note: Code change proposals to this chapter will be considered by the Administrative Code Development Committee during the 2025 (Group B) Code Development Cycle.

  Section 104 was revised for the 2024 edition. For complete information, see the Relocations table in the Preface of this code.

  Note: Sections adopted or amended by state agencies are specifically indicated by an agency banner.

  PART 1—SCOPE AND APPLICATION

  SECTION 101—SCOPE AND GENERAL REQUIREMENTS

  [A] 101.1 Title. These regulations shall be known as the Building Code of [ NAME OF JURISDICTION ], hereinafter referred to as “this code.”

  [A] 101.2 Scope. The provisions of this code shall apply to the construction, alteration, relocation, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures.

  Exception: Detached one- and two-family dwellings and townhouses not more than three stories above grade plane in height with a separate means of egress, and their accessory structures not more than three stories above grade plane in height, shall comply with this code or the California Residential Code .

  [A] 101.2.1 Appendices. Provisions in the appendices shall not apply unless specifically adopted.

  [A] 101.3 Purpose. The purpose of this code is to establish the minimum requirements to provide a reasonable level of safety, health and general welfare through structural strength, means of egress, stability, sanitation, light and ventilation, energy conservation, and for providing a reasonable level of life safety and property protection from the hazards of fire, explosion or dangerous conditions, and to provide a reasonable level of safety to firefighters and emergency responders during emergency operations.

  [A] 101.4 Referenced codes. The other codes specified in Sections 101.4.1 through 101.4.7 and referenced elsewhere in this code shall be considered to be part of the requirements of this code to the prescribed extent of each such reference.

• CMC § 3101F.2 Medium relevance — show source text

  The Marine Environmental Protection Division (Division) administers this code on behalf of the SLC.

  3101F.2 Purpose. The purpose of this code is to establish minimum engineering, inspection and maintenance criteria for MOTs in order to prevent oil spills and to protect public health, safety and the environment. This code does not specifically address terminal siting, systems onboard vessels, processing facilities or operational requirements. Relevant provisions from existing codes, industry standards, recommended practices, regulations and guidelines have been incorporated directly or through reference, as part of this code.

  Where there are differing requirements between this code and/or references cited herein, the choice of application shall be subject to Division approval.

  In circumstances where technologies proposed for use are not covered by this code and/or references cited herein, prevention of oil spills and equivalent or better protection of the public health, safety and the environment must be demonstrated, and the choice of application shall be subject to Division approval.

  3101F.3 Applicability. The provisions of this chapter are applicable to the evaluation of existing MOTs and design of new MOTs in Cali- fornia. Each provision is classified as New (N), Existing (E), or Both (N/E) and shall be applied accordingly. If no classification is indicated, the classification shall be considered to be (N/E).

  Existing (E) requirements apply to MOTs that were in operation on the date this code became effective (February 6, 2006). For these MOTs, equivalent or in-kind replacement of existing equipment, short pipeline sections or minor modification of existing components shall also be subject to the existing (E) requirements.

  New (N) requirements apply to:

  1. A MOT or berthing system (Subsection 3102F.1.3) that commences or recommences operation with a new or modified opera- tions manual after adoption of this code.

  2. Addition of new structural components or systems at an existing MOT that are structurally independent of existing components or systems.

  3. Addition of new (nonreplacement) equipment, piping, pipelines, components or systems to an existing MOT.

  4. Major repairs or substantially modified in-place systems.

  5. Any associated major installations or modifications.

  3101F.4 Overview. This Code ensures that a MOT can be safely operated within its inherent structural and equipment-related constraints.

  Section 3102F defines minimum requirements for audit, inspection and evaluation of the structural, electrical and mechanical systems on a prescribed periodic basis, or following a significant, potentially damage-causing event.

  Section 3103F, 3104F and 3107F provide criteria for structural loading, deformation and performance-based evaluation considering earthquake, wind, wave, current, seiche and tsunami effects.

  Section 3105F provides requirements for the safe mooring and berthing of tank vessels and barges.

  Section 3106F describes requirements for geotechnical hazards and foundation analyses, including consideration of slope stability and soil failure.

  Section 3108F provides requirements for fire prevention, detection and suppression including appropriate water and foam volumes.

  Sections 3109F through 3111F provide requirements for piping/ pipelines, mechanical and electrical equipment and electrical systems.

  Section 3112F provides requirements specific to marine terminals that transfer LNG.

  Generally, English units are typically prescribed herein; however, System International (SI) units are utilized in Section 3112F and in many of the references.

• CMC § 1.11.11 Medium relevance — show source text

  1.11.11 Adopting Agency Identification. The provisions of this code applicable to buildings identified in this Section 1.11 will be identi- fied in the Matrix Adoption Tables under the acronym SFM.

  SECTION 1.12—STATE LIBRARIAN

  1.12.1 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.

  Application— Public library construction and renovation using funds from the California Library Construction and Renovation Bond Act of 1988.

  Enforcing agency— State librarian.

  Authority cited— Education Code Sections 19950 through 19981.

  Reference— Education Code Sections 19950 through 19981.

  SECTION 1.13—DEPARTMENT OF WATER RESOURCES

  RESERVED

  SECTION 1.14—CALIFORNIA STATE LANDS COMMISSION

  1.14.1 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.

  Application— Marine oil terminals.

  Enforcing agency— California State Lands Commission.

  Authority cited— Public Resources Code Section 8755.

  Reference— Public Resources Code Section 8755.

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  ADMINISTRATION

  DIVISION II SCOPE AND ADMINISTRATION

  User notes:

  About this chapter: Chapter 1 establishes the limits of applicability of the code and describes how the code is to be applied and enforced. Chapter 1 is in two parts: Part 1—Scope and Application (Sections 101–102) and Part 2—Administration and Enforcement (Sections 103–116). Section 101 identifies which buildings and structures come under its purview and references other ICodes as applicable. Standards and codes are scoped to the extent referenced (see Section 102.4).

  This code is intended to be adopted as a legally enforceable document and it cannot be effective without adequate provisions for its administration and enforcement. The provisions of Chapter 1 establish the authority and duties of the code official appointed by the authority having jurisdiction and also establish the rights and privileges of the design professional, contractor and property owner. Chapter 1 is largely concerned with maintaining “due process of law” in enforcing the building performance criteria contained in the body of the code.

  ICC code development note: Code change proposals to this chapter will be considered by the Administrative Code Development Committee during the 2025 (Group B) Code Development Cycle.

  Section 104 was revised for the 2024 edition. For complete information, see the Relocations table in the Preface of this code.

  Note: Sections adopted or amended by state agencies are specifically indicated by an agency banner.

  PART 1—SCOPE AND APPLICATION

  SECTION 101—SCOPE AND GENERAL REQUIREMENTS

  [A] 101.1 Title. These regulations shall be known as the Building Code of [ NAME OF JURISDICTION ], hereinafter referred to as “this code.”

• 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 § 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 § 1.11.0. Medium relevance — show source text

  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 Agency	BSC	BSC- CG	SFM	1	2	1-AC	AC	** SS**	** SS/CC**	1	1R	2	3	4	5	6	6	6	6	6	6	6	6	6
  Adopt Entire Chapter
  Adopt Entire Chapter as amended (amended sections listed below)
  Adopt only those sections that are listed below
  Chapter/Section

  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.

  2025 CALIFORNIA MECHANICAL CODE 559

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  APPENDIX J

  CLEAN AIR DELIVERY

  The provisions contained in this appendix are not mandatory unless specifically adopted by a state agency, or referenced in the adopting ordinance.

  J 101.0 General.

  J 101.1 Applicability. This appendix provides criteria for an increased protection level for occupant health by delivering and monitoring clean air in occupied areas of certain buildings. The provisions contained in this appendix are not mandatory unless specifically referenced in the adopting ordi nance.

  J 201.0 Clean Air Delivery Capability. J 201.1 General. In groups A, B, E, and I occupancies, each mechanical system shall meet the requirements in Section J 201.1.1.

  Exception: Occupiable spaces where 100 percent of the supply air meets High-Efficiency Particulate Air (HEPA) filtration.

  J 201.1.1 Airflow for Increased Filtration. Mechanical systems shall be sized to accommodate a design airflow at a total static pressure drop which assumes the utilization of a supply air filter with a Minimum Efficiency Reporting Value (MERV) of no less than 13.

• CMC § 1 Medium relevance — show source text

  Appendix G Example Calculation of Outdoor Air Rate. Appendix G gives an example of how to calculate the required outdoor air rate under Chapter 4.

  Appendix H Professional Qualifications. Appendix H provides a baseline of knowledge for installers, inspectors, or employers working with and around systems covered within the scope of this code to maintain health and safety.

  Appendix I Indoor Horticultural Facilities. Appendix I addresses indoor spaces using environmental controls for horticultural cultivation and processing of plants for human ingestion, inhalation, and topical application. The appendix includes recommendations pertaining to fire protection and suppression systems, carbon dioxide detection systems, flammable solvents, ventilation and exhaust systems, particulate and odor control, and fumigation.

  Appendix J Clean Air Delivery. Appendix J provides criteria for an increased level of protection for occupant health by delivering and monitoring clean air in occupied areas of certain buildings. This appendix addresses Demand Control Ventilation (DCV) for occupancy groups A, B, E, and I and recommends that each occupiable zone have CO 2 sensors which communicate with building mechanical systems to adjust airflow rates and maintain acceptable CO 2 levels. Additionally, this appendix contains provisions for mechanical system controls pertaining to sensor calibration, intervals for collected data, and automatic remediation actions to increase the amount of outdoor air provided to each occupiable zone. The CO 2 sensors addressed in this appendix are intended to give notifications that can assist with awareness of unhealthy levels and give insight to building occupants as to when mitigation action is necessary.

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  SAMPLE LEGISLATION FOR ADOPTION OF THE UNIFORM MECHANICAL CODE

  The Uniform Codes are designed to be adopted by jurisdictions through an ordinance. Jurisdictions wishing to adopt the 2024 Uniform Mechanical Code as an enforceable regulation governing mechanical systems by reference should ensure the legal basis under which adoption and implementation are included in the ordinance.

  The following sample ordinance is a guide for drafting an ordinance for adoption that addresses key components regulations and resolutions.

  ORDINANCE NO.

  An ordinance of the [JURISDICTION] adopting the 2024 edition of the Uniform Mechanical Code, regulating and controlling the design, construction, quality of materials, erection, installation, alteration, repair, location, relocation, replacement, addition to, use or maintenance of mechanical systems in the [JURISDICTION]; providing for the issuance of permits and collection of fees therefor; repealing Ordinance No. of the

  [JURISDICTION] and all other ordinances and parts of the ordinances in conflict therewith.

  The [GOVERNING BODY] of the [JURISDICTION] does ordain as follows:

  Section 1 Codes Adopted by Reference. That certain documents, three (3) copies of which are on file in the office of the [JURISDICTION'S KEEPER OF RECORDS] and the [JURISDICTION], being marked and designated as the 2024 Uniform Mechanical Code, including Appendix Chapters [FILL IN THE APPENDIX CHAPTERS BEING ADOPTED], as published by the International Association of Plumbing and Mechanical Officials, be and is hereby adopted as the Code of the [JURISDICTION], in the State of [STATE NAME] regulating and controlling the design, construction, quality of materials, erection, installation, alteration, repair, location, relocation, replacement, addition to,

• CMC § 1.10.1.3 Medium relevance — show source text

  1.10.1.3 Adopting Agency Identification. The provisions of this code applicable to buildings identified in this Subsection 1.10.1 will be identified in the Matrix Adop- tion Tables under the acronym OSHPD 1, and OSHPD 1R.

  1.10.2 OSHPD 2. Specific scope of application of the agency responsible for enforcement, enforcement agency, specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

  OSHPD 2

  – Application Skilled nursing facilities and intermediate care facility buildings.

  Enforcing Agency – Health Care Access and Informa- tion/Office of Statewide Hospital Planning and Devel-

  opment (OSHPD). The office shall also enforce the Divi- sion of the State Architect access compliance regulations and the regulations of the Office of the State Fire Marshal for the above stated facility type.

  1.10.2.1 Applicable Administrative Standards:

  (1) Title 24, Part 1, California Code of Regulations: Chapter 7.

  (2) Title 24, Part 2, California Code of Regulations: Sections 1.1.0 and 1.10.0, Chapter 1, Division I, and as indicated in the adoption matrix for Chapter 1, Division II.

  1.10.2.2 Applicable Building Standards. California Building Standards Code, Title 24, Parts 2, 3, 4, 5, 6, 9, 10, and 11.

  – Authority Cited Health and Safety Code Sections 127010, 127015, 1275, and 129850.

  – References Health and Safety Code Sections 127010, 127015, 1275, and 129680.

  1.10.2.3 Adopting Agency Identification. The provisions of this code applicable to buildings identified in this Subsection 1.10.2 will be identified in the Matrix Adop- tion Tables under the acronym OSHPD 2.

  1.10.3 OSHPD 3. Specific scope of application of the agency responsible for enforcement, enforcement agency, specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

  OSHPD 3

  – Application Licensed clinics and any freestanding building under a hospital license where outpatient clin- ical services are provided.

  – Enforcing Agency Local building department.

  1.10.3.1 Applicable Administrative Standards.

  (1) Title 24, Part 1, California Code of Regulations: Chapter 7.

  (2) Title 24, Part 2, California Code of Regulations: Sections 1.1.0 and 1.10.0, Chapter 1, Division I, and as indicated in the adoption matrix for Chapter 1, Division II.

  1.10.3.2 Applicable Building Standards. California Building Standards Code, Title 24, Parts 2, 3, 4, 5, 6, 9, 10, and 11.

• CMC § 317.1.2.1 Medium relevance — show source text

  The provisions of Section 317 through 323 also establish minimum standards for earthquake evaluation and design for rehabilitation of existing public buildings currently under the jurisdiction of DSA-SS.

  317.1.2.1 Reference to other chapters. For public schools, where reference within this chapter is made to sections in Chapters 16, 17, 18, 19, 21 or 22 of the California Building Code, the provisions in Chapters 16A, 17A, 18A, 19A, 21A and 22A of the California Building Code, respectively, shall apply instead.

  317.1.3 Community college buildings. [DSA-SS/CC] The provisions of Sections 317 through 323 establish minimum standards for earthquake evaluation and design for the rehabilitation of existing buildings for use as community college buildings under the jurisdiction of the Division of the State Architect—Structural Safety/Community Colleges [DSA-SS/CC], refer to Section 1.9.2.2.

  The provisions of Section 317 through 323 also establish minimum standards for earthquake evaluation and design for rehabilitation of existing community college buildings currently under the jurisdiction of DSA-SS/CC.

  317.1.3.1 Reference to other chapters. For community colleges, where reference within this chapter is made to sections in Chapters 17 or 18 of the California Building Code, the provisions in Chapters 17A and 18A of the California Building Code, respectively, shall apply instead.

  317.2 Scope. All alterations, structurally connected additions and/or repairs to existing structures or portions thereof shall, at a minimum, be designed and constructed to resist the effects of seismic ground motions as provided in this section. The structural system shall be evaluated by a registered design professional and, if not meeting or exceeding the minimum seismic design performance requirements of this section, shall be retrofitted in compliance with these requirements.

  Exception: Those structures for which Section 317.3 determines that assessment is not required, or for which Section 317.4 determines that retrofit is not needed, then only the requirements of Section 317.11 apply.

  317.3 Applicability.

  317.3.1 Existing state-owned buildings. [BSC, DSA-SS] For existing state-owned structures including all buildings owned by the University of California and the California State University, the requirements of Section 317 apply whenever the structure is to be retrofitted, repaired or modified and any of the following apply: 1. Total construction cost, not including cost of furnishings, fixtures and equipment, or normal maintenance, for the building exceeds 25 percent of the construction cost for the replacement of the existing building. The changes are cumulative for past modifications to the building that occurred after adoption of the 1995 California Building Code and did not require seismic retrofit.

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  PROVISIONS FOR ALL COMPLIANCE METHODS

• CMC § 420.6.2 Medium relevance — show source text

  Exception: Spaces having a direct exit to a public way.

  420.6.2 Refuge area. Refuge areas shall be provided within each smoke compartment. The size of the refuge area shall accommodate the occupants and care recipients from the adjoining smoke compartment. Where a smoke compartment is adjoined by two or more smoke compartments, the minimum area of the refuge area shall accommodate the largest occupant load of the adjoining compartments. The size of the refuge area shall provide the following:

  1. Not less than 15 net square feet (1.4 m [2] ) for each care recipient.
  2. Not less than 6 net square feet (0.56 m [2] ) for other occupants.

  Areas or spaces permitted to be included in the calculation of the refuge area are corridors, lounge or dining areas and other low-hazard areas.

  420.7 Reserved.

  420.8 Reserved.

  420.9 Domestic cooking appliances. In Group R-2.1 occupancies, installation of cooking appliance used in domestic cooking facilities shall comply with all of the following:

  1. The types of cooking appliances permitted shall be limited to ovens, cooktops, ranges, warmers and microwaves.
  2. Domestic cooking hoods installed and constructed in accordance with the California Mechanical Code shall be provided over cooktops or ranges.
  3. Cooktops and ranges shall be protected in accordance with Section 904.15.
  4. A shutoff for the fuel and electrical supply to the cooking equipment shall be provided in a location to which only staff has

  access.

  5. A timer shall be provided that automatically deactivates the cooking appliances within a period of not more than 120 minutes.

  6. A portable fire extinguisher shall be provided. Installation shall be in accordance with Section 906 and the extinguisher shall be located within a 30-foot (9144 mm) distance of travel from each domestic cooking appliance.

  Exceptions:

  1. Cooking facilities provided within care recipients’ individual dwelling units are not required to comply with this section.
  2. Cooktops and ranges used for care-recipient training or nutritional counseling are not required to comply with Item 3 of this section.

  420.10 Group R cooking facilities. In Group R occupancies, cooking appliances used for domestic cooking operations shall be in accordance with the California Mechanical Code .

  420.11 Group R-2 dormitory cooking facilities. Domestic cooking appliances for use by residents of Group R-2 college dormitories shall be in accordance with Sections 420.11.1 and 420.11.2.

  420.11.1 Cooking appliances. Where located in Group R-2 college dormitories, domestic cooking appliances for use by residents shall be in compliance with all of the following:

  1. The types of domestic cooking appliances shall be limited to ovens, cooktops, ranges, warmers, coffee makers and microwaves.

  2. Domestic cooking appliances shall be limited to approved locations.

  3. Cooktops and ranges shall be protected in accordance with Section 904.15.

  4. Cooktops and ranges shall be provided with a domestic cooking hood installed and constructed in accordance with the California Mechanical Code . Kitchen range hoods shall also be rated for sound and meet field verification requirements in the California Energy Code for low-rise and high-rise residential buildings.

  420.11.2 Cooking appliances in sleeping rooms. Cooktops, ranges and ovens shall not be installed or used in sleeping rooms.

• CBC § 66323 Medium relevance — show source text

  Can a 66323 ADU created by converting an existing accessory structure be expanded? Yes. An ADU created within the existing space of an accessory structure can be expanded beyond the physical dimensions of the structure up to 150 square feet solely for the purpose of accommodating ingress and egress. (Gov. Code, § 66323, subd. (a)(1)(A).) An example is the construction of a staircase to reach a second story ADU. The ADUs shall conform to setbacks sufficient for fire and safety. (Gov. Code, § 66323, subd. (a)(1)(C).)

  NOTE: A JADU may be created within the walls of a single-family residence and not within an accessory structure. JADUs may not be expanded beyond the existing dimensions of the single-family dwelling.

  For more information regarding 66323 multifamily accessory units, please see Multifamily ADUs .

  20

  ADUs

  What is an ADU? An ADU is accessory to a primary residence and has complete independent living facilities for one or more persons. ADUs are either “detached from,” “attached to,” or located within the proposed or existing primary dwelling. This includes attached garages, storage areas or similar spaces, and accessory structures. The ADU can also be detached from the proposed or existing primary dwelling, including detached garages, provided it is located on the same lot. (Gov. Code. §§ 66313, subd. (a); 66314, subd. (d)(3).) [2]

  Bedrooms

  Can a limit on the number of bedrooms in an ADU be imposed? A limit on the number of bedrooms could be construed as a discriminatory practice towards protected classes, such as familial status, and would be considered a constraint on the development of ADUs (Gov. Code, § 65008). Building code standards for minimum bedroom size still apply.

  Can an ADU have no bedrooms? A limit on the number of bedrooms could be construed as a discriminatory practice towards protected classes, such as familial status, (Gov. Code, § 65008) and could also unreasonably restrict the ability of homeowners to create ADUs (Gov. Code, § 66311). Building code standards for minimum bedroom size still apply.

  Building Code Violations

  Can an ADU application be denied due to building code violations? An ADU application pursuant to Government Code section 66314 may be denied due to building code violations on the primary unit only if the violations present a threat to public health and safety and are affected by the construction of the ADU (Gov. Code, § 66322, subd. (b)). However, all ADUs must comply with building code and health and safety requirements for dwellings.

  Coastal Commission

  Do state ADU laws apply to jurisdictions located in the California Coastal Zone? Yes. ADU laws apply to jurisdictions in the California Coastal Zone, but do not alter or lessen the effect or application of Coastal Act resource protection policies (Gov. Code, § 66329). Coastal localities should seek to harmonize the goals of protecting coastal resources and addressing housing needs of Californians. For example, where appropriate, localities should amend Local Coastal Programs for California Coastal Commission review to comply with the California Coastal Act and new State ADU Laws. For more information, see the California

  2 Note that certain federal financing programs mentioned in the section on “Funding,” below, may have different definitions of an ADU.

• CMC § 0.35 Medium relevance — show source text

  Mechanical Ventilation = [(0.35 – Summer ) × Volume ] / 60

  Where:

  Mechanical Ventilation = required mechanical ventilation rate to supplement summer infiltration, CFM

  Summer = summer design infiltration rate, ACH Volume = volume of conditioned space, ft [3 ] (m [3] )

  For SI units: 1 cubic foot = 0.0283 m [3], 1 cubic foot per minute = 0.00047 m [3] /s, 1 cubic foot per minute = 0.4719 L/s

  [ASHRAE 90.2-2007:6.6.1]

  E 502.6.1 Combustion Air. Combustion air for fossil fuel heating equipment shall comply with this code or with one of the following:

  (1) Natural gas and propane heating equipment, NFPA 54

  (2) Oil heating equipment, NFPA 31

  (3) Solid fuel burning equipment, NFPA 211

  [ASHRAE 90.2-2007:6.6.2] E 502.7 Electric Heating Systems. Electric heating systems shall be installed in accordance with the following requirements. [ASHRAE 90.2-2007:6.7] E 502.7.1 Wall, Floor, or Ceiling Electric-Resis- tance Heating. Where wall, floor, or ceiling electricresistance heating units are used, the structure shall be zoned and heaters installed in each zone in accordance with the heat loss of that zone. Where living and sleeping zones are separate, the number of zones shall be not less than two. Where two or more heaters are installed in one room, they shall be controlled by one thermostat.

  [ASHRAE 90.2-2007:6.7.1]

  E 502.7.2 Electric Central Warm Air Heating. Where electric central warm air heating is to be installed, an electric heat pump or an off-peak electric heating system with thermal storage shall be used.

  Exceptions:

  (1) Electric resistance furnaces where the ducts are located inside the conditioned space, and not less than two zones are provided where the living and sleeping zones are separate.

  (2) Packaged air-conditioning units with supplemental electric heat. [ASHRAE 90.2-2007:6.7.2] E 502.8 Bath Ceiling Units. Bath ceiling units providing a combination of heat, light, or ventilation shall be provided with controls permitting separate operation of the heating function. [ASHRAE 90.2-2007:6.8] E 502.9 HVAC Equipment, Rated Combinations. HVAC system equipment and system components shall be furnished with the input(s), the output(s), and the value of the appropriate performance descriptor of HVAC products in accordance with federal law or in accordance with Table E 502.9, as applicable. These shall be based on newly produced equipment or components. Manufacturer’s instructions shall be furnished with and attached to the equipment. The manufacturer of electric-resistance heating equipment shall furnish full-load energy input over the range of voltages at which the equipment is intended to operate. [ASHRAE 90.2-2007:6.9] **E 502.10 Controls.