Mixed occupancy buildings (Section 302)

Grounded in the retrieved California Green Building Standards Code (CALGreen) — click a citation to read the verbatim passage:

• CALGreen § 301.5 High relevance — show source text

  301.5 Health Facilities. [OSHPD 1, 2 & 4] Health facilities under the jurisdiction of the Office of Statewide Health Planning and Development (OSHPD) are required to comply with the mandatory measures prescribed in Section 5.304, Outdoor Water Use. Compliance with Section 5.304, as adopted by the Building Standards Commission, is enforced by the local agency having jurisdiction. Evidence of local approval shall be submitted to OSHPD prior to issuance of plan approval or a building permit.

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE 3-3

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

  GREEN BUILDING

  SECTION 302—MIXED OCCUPANCY BUILDINGS

  302.1 Mixed occupancy buildings. In mixed occupancy buildings, each portion of a building shall comply with the specific green building measures applicable to each specific occupancy.

  Exceptions:

  1. [HCD] Accessory structures and accessory occupancies serving residential buildings shall comply with Chapter 4 and Appendix A4, as applicable.
  2. [HCD] For the purposes of CALGreen, live/work units, complying with Section 508.5 of the California Building Code, shall not be considered mixed occupancies. Live/work units shall comply with Chapter 4 and Appendix A4, as applicable.

  SECTION 303—PHASED PROJECTS

  303.1 Phased projects. For shell buildings and others constructed for future tenant improvements, only those code measures relevant to the building components and systems considered to be new construction (or newly constructed) shall apply.

  303.1.1 Initial tenant improvements. The provisions of this code shall apply only to the initial tenant improvements to a project. Subsequent tenant improvements shall comply with the scoping provisions in Section 301.3 nonresidential additions and alterations.

  SECTION 304—VOLUNTARY TIERS

  304.1 Purpose. Voluntary tiers are intended to further encourage building practices that improve public health, safety and general welfare by promoting the use of building concepts which minimize the building’s impact on the environment and promote a more sustainable design.

  304.1.1 Tiers. The provisions of Divisions A4.6 and A5.6 outline means, in the form of voluntary tiers, for achieving enhanced construction levels by incorporating additional measures for residential and nonresidential new construction. Voluntary tiers may be adopted by local governments and, when adopted, enforced by local enforcing agencies. Buildings complying with tiers specified for each occupancy contain additional prerequisite and elective green building measures necessary to meet the threshold of each tier. See Section 101.7 of this code for procedures and requirements related to local amendments, additions or deletions, including changes to energy standards.

  [BSC & HCD] Where there are practical difficulties involved in complying with the threshold levels of a tier, the enforcing agency may grant modifications for individual cases. The enforcing agency shall first find that a special individual reason makes the strict letter of the tier impractical and that modification is in conformance with the intent and purpose of the measure. The details of any action granting modification shall be recorded and entered in the files of the enforcing agency.

  SECTION 305 [OSHPD 1]— CALGreen TIER 1 AND CALGreen TIER 2

  305.1 CALGreen Tier 1 and CALGreen Tier 2 buildings contain voluntary green building measures necessary to meet the threshold of each level.

• CALGreen § 301.3.2 High relevance — show source text

  301.3.2 Waste diversion. The requirements of Section 5.408 shall be required for additions and alterations whenever a permit is required for work.

  301.4 Mandatory measures for public schools and community colleges. [DSA-SS] New building construction and site work on a new or existing site shall comply with Section 301.4.

  301.4.1 Building and site construction on a new site shall comply with Chapter 5 as adopted by DSA-SS.

  301.4.2 Work on an existing site shall comply with Section 301.4.2.

  301.4.2.1 Newly constructed site work shall comply with Chapter 5 as adopted by DSA-SS.

  301.4.2.2 Newly constructed buildings shall comply with Chapter 5 as adopted by DSA-SS and Section 301.4.3.

  301.4.2.3 Additions to existing buildings shall comply with Section 301.4.3.

  301.4.2.4 Rehabilitated landscape areas shall comply with Sections 5.304.6 and 5.106.12.

  301.4.2.5 Alterations and additions to existing parking facilities shall comply with Section 5.106.5.6.4. Additions to existing parking facilities shall comply with Section 5.106.12.

  301.4.2.6 Alterations and additions to existing buildings shall comply with Sections 5.105.1, 5.106.5.6.5, 5.409, and 5.506.3.

  301.4.3 Minimum rehabilitated landscape area requirement. A minimum rehabilitated landscape area equal to 75 percent of the footprint area of the building shall comply with Section 5.304.6 and Section 5.106.12. New buildings or additions to existing buildings less than 1,600 square feet shall not be required to comply with Section 301.4.3.

  301.5 Health Facilities. [OSHPD 1, 2 & 4] Health facilities under the jurisdiction of the Office of Statewide Health Planning and Development (OSHPD) are required to comply with the mandatory measures prescribed in Section 5.304, Outdoor Water Use. Compliance with Section 5.304, as adopted by the Building Standards Commission, is enforced by the local agency having jurisdiction. Evidence of local approval shall be submitted to OSHPD prior to issuance of plan approval or a building permit.

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE 3-3

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

  GREEN BUILDING

  SECTION 302—MIXED OCCUPANCY BUILDINGS

  302.1 Mixed occupancy buildings. In mixed occupancy buildings, each portion of a building shall comply with the specific green building measures applicable to each specific occupancy.

  Exceptions:

  1. [HCD] Accessory structures and accessory occupancies serving residential buildings shall comply with Chapter 4 and Appendix A4, as applicable.
  2. [HCD] For the purposes of CALGreen, live/work units, complying with Section 508.5 of the California Building Code, shall not be considered mixed occupancies. Live/work units shall comply with Chapter 4 and Appendix A4, as applicable.

  SECTION 303—PHASED PROJECTS

• CALGreen § 1-5 High relevance — show source text

  102 Construction Documents

  and Installation Verification . . . . . . . . . . . . . . . . . . . .1-5

  103 Building Standards Commission. . . . . . . . . . . . . . . . . . .1-5 104 Department of Housing and Community Development. . . . . . . . . . . . . . . . . .1-6 105 Division of the State Architect . . . . . . . . . . . . . . . . . . . . .1-6

  106 Office of Statewide Health Planning and Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

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

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

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

  CHAPTER 3 GREEN BUILDING . . . . . . . . . . . . . . . . . . . . . . . . 3-3

  301 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

  302 Mixed Occupancy Buildings . . . . . . . . . . . . . . . . . . . . . . .3-4 303 Phased Projects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 304 Voluntary Tiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 305 CALGreen Tier 1 and CALGreen Tier 2 . . . . . . . . . . . . . .3-4

  306 Voluntary Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

  CHAPTER 4 RESIDENTIAL MANDATORY MEASURES . . . . . . 4-3

  4.1 Planning and Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3 4.2 Energy Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7 4.3 Water Efficiency and Conservation . . . . . . . . . . . . . . . . .4-9 4.4 Material Conservation and Resource Efficiency . . . . 4-11 4.5 Environmental Quality . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

  CHAPTER 5 NONRESIDENTIAL MANDATORY MEASURES . . 5-3

• CALGreen § 403.3 High relevance — show source text

  ENERGY STAR equipment and appliances Appendix A6.1(OSHPD), A4.403.3, A5.204.1 General 4.201, 5.201, A5.201 Performance approach A4.203, A5.203 Outdoor lighting A5.203.1.1.1 Prescriptive approach Appendix A6.1(OSHPD), 203.3.1.2 Alterations to existing buildings A4.204.1, A4.204.1.2, A5.204.1,

  A5.204.1.1 Energy Efficient Steel Framing A5.213 Environmental Comfort 4.507, 5.507,

  A5.507

  Acoustical control A4.507, A5.507.5 Daylight A5.507.2 Lighting and thermal comfort controls A5.507.1

  Views A5.507.3

  Fireplaces 4.503, 5.503 Foundation Systems A4.403 Frost protected foundation systems A4.403.1

  Reduction in cement use A4.403.2 Framing, Energy Efficient Steel A5.213 Framing Techniques, Efficient A4.404, A5.404 Building systems A4.404.3 Lumber size A4.404.1

  Pre-cut materials and details A4.404.4 Wood framing A5.404.1

  Green Building Chapter 3 Mixed occupancy buildings 302 Phased projects 303 Voluntary tiers 304, 305 Voluntary measures 306

  HVAC Design, Equipment and Installation Appendix A6.1 (OSHPD), A5.207

  Indoor Air Quality And Exhaust 4.506, 5.506 Bathroom exhaust fans 4.506.1 Carbon dioxide monitoring 5.506.2 Carbon dioxide (CO 2 ) monitoring in classrooms 5.506.3

  Filters 5.504.5, A4.506.1 Outside air delivery 5.506.1 Indoor Moisture Control 4.505, 5.505.1 Concrete slab foundations 4.505.2

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE INDEX-1

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  INDEX

  Appendix A6.1 (OSHPD), Table A5.504.8.5 Covering of duct openings and protection of mechanical equipment during construction 4.504.1, 5.504.3 Environmental tobacco smoke control 5.504.7, Appendix A6.1 (OSHPD), A5.504.9 Finish material pollutant control 4.504.2, 5.504.4 Hazardous particulates and chemical pollutants A5.504.5 Indoor air quality (IAQ) during construction 5.504.1, A5.504.1 IAQ Post-construction A5.504.2 Paints and coatings 4.504.2.2, 5.504.4.3 Resilient flooring systems 4.504.4, 5.504.4.6, A4.504.2, A5.504.4.7 Thermal insulation 5.504.4.7, A4.504.3,

  A5.504.4.8

• CALGreen § 2.1 Medium relevance — show source text

  SECTION 302 A —GENERAL PROVISIONS

  302 A .1 Dangerous conditions. The code official shall have the authority to require the elimination of conditions deemed dangerous.

  302 A .2 Additional codes. Alterations, repairs, additions and changes of occupancy to, or relocation of, existing buildings and struc- tures shall comply with the provisions for alterations, repairs, additions and changes of occupancy or relocation, respectively, in the California Fire Code, California Mechanical Code, California Plumbing Code and California Electrical Code. Where provisions of the other codes conflict with provisions of this chapter, the provisions of this chapter shall take precedence.

  302 A .2.1 Additional codes in health care. In existing Group I-2 occupancies, ambulatory health care facilities, outpatient clinics and hyperbaric facilities, alterations, repairs, additions and changes of occupancy to, or relocation of, existing buildings and structures shall also comply with NFPA 99.

  302 A .3 Existing materials and equipment. Materials and equipment already in use in a building in compliance with requirements or approvals in effect at the time of their erection or installation shall be permitted to remain in use unless determined by the code official to be unsafe in accordance with California Building Code Section 116.

  2025 CALIFORNIA EXISTING BUILDING CODE 3A-3

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  PROVISIONS FOR ALL COMPLIANCE METHODS

  302A.3.1 Existing seismic force-resisting systems. Where the existing seismic force-resisting system is a type that can be designated ordinary or is a welded steel moment frame constructed under a permit issued prior to October 25, 1994, values of R, W0 and Cd for the existing seismic force-resisting system shall be those specified by the California Building Code for an ordinary system unless it is demonstrated that the existing system will provide performance equivalent to that of a detailed, intermediate or special system.

  302 A .4 New and replacement materials. Except as otherwise required or permitted by this code, materials and equipment permitted by the applicable code for new construction shall be used. Like materials shall be permitted for repairs and alterations, provided no hazard to life, health or property is c reated. Hazardous materials shall not be used where the code for new construction would not permit their use in buildings of similar occupancy, purpose and location.

  302 A .4.1 New structural members and connections. New structural members and connections shall comply with the detailing provisions of the California Building Code for new buildings of similar structure, purpose and location.

  Exception: Where alternative design criteria are specifically permitted.

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

• CALGreen § 1.5.3 Medium relevance — show source text

  Where approved by the building official, the classification of buildings and other structures as Risk Category III or IV based on their quantities of toxic, highly toxic or explosive
  materials is permitted to be reduced to Risk Category II, provided that it can be demonstrated by a hazard assessment in accordance with Section 1.5.3 of ASCE 7 that a
  release of the toxic, highly toxic or explosive materials is not sufficient to pose a threat to the public.|a. For purposes of occupant load calculation, occupancies required by Table 1004.5 to use gross floor area calculations shall be permitted to use net floor areas to determine the
  total occupant load. The floor area for vehicular drive aisles shall be permitted to be excluded in the determination of net floor area in parking garages.
  b. Where approved by the building official, the classification of buildings and other structures as Risk Category III or IV based on their quantities of toxic, highly toxic or explosive
  materials is permitted to be reduced to Risk Category II, provided that it can be demonstrated by a hazard assessment in accordance with Section 1.5.3 of ASCE 7 that a
  release of the toxic, highly toxic or explosive materials is not sufficient to pose a threat to the public.|

  16A-8 2025 CALIFORNIA BUILDING CODE

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  STRUCTURAL DESIGN

  1604 A .5.1 Multiple occupancies. Where a building or structure is occupied by two or more occupancies not included in the same risk category, it shall be assigned the classification of the highest risk category corresponding to the various occupancies. Where buildings or structures have two or more portions that are structurally separated, each portion shall be separately classified. Where a separated portion of a building or structure provides required access to, required egress from or shares life safety systems, designated seismic systems, emergency power systems, or emergency and egress lighting systems with another portion having a higher risk category, or provides required electrical, communications, mechanical, plumbing or conveying support to another portion assigned to Risk Category IV, both portions shall be assigned to the higher risk category. Exception: Where a storm shelter designed and constructed in accordance with ICC 500 is provided in a building, structure or portion thereof normally occupied for other purposes, the risk category for the normal occupancy of the building shall apply unless the storm shelter is a designated emergency shelter in accordance with Table 1604 A .5. 1604 A .5.2 Photovoltaic (PV) panel systems. Photovoltaic (PV) panel systems and elevated PV support structures shall be assigned a risk category as follows:

  1. Ground-mounted PV panel systems serving only Group R-3 buildings shall be assigned to Risk Category I.
  2. Ground-mounted PV panel systems other than those described in Items 1 and 5 shall be assigned to Risk Category II.
  3. Elevated PV support structures other than those described in Items 4, 5 and 6 shall be assigned to Risk Category II.

  [DSA-SS] The risk category shall not be less than the risk category that corresponds to the usable space underneath in accordance with the risk category and nature of occupancy descriptions in Table 1604A.5. 4. Rooftop-mounted PV panel systems and elevated PV support structures installed on top of buildings shall be assigned to the same risk category as the risk category of the building on which they are mounted. 5.

• CALGreen § 1.10.1 Medium relevance — show source text

  Chapter 5A Prescriptive Compliance Method.

  Chapter 5A provides details for the prescriptive compliance method for alteration, addition and change of occupancy of existing build- ings and structures regulated by the Department of Health Care Access and Information/Office of Statewide Hospital Planning and Development, which include hospitals and correctional treatment centers (applications listed in Sections 1.10.1 (OSHPD 1).

  Chapter 6 Classification of Work.

  Chapter 6 provides an overview of the Work Area Method and defines the different classifications of work including alterations, change of occupancy, additions and historic buildings. Detailed requirements for all of these are given in subsequent Chapters 7 through 11.

  Chapter 7 Alterations—Level 1.

  Chapter 7 provides the technical requirements for those existing buildings that undergo Level 1 alterations as described in Section 602, which includes replacement or covering of existing materials, elements, equipment or fixtures using new materials for the same purpose. This chapter is distinguished from Chapters 8 and 9 by only involving replacement of building components with new components with no reconfiguration of space.

  Chapter 8 Alterations—Level 2.

  A Level 2 alteration is an alteration involving space reconfiguration that could be up to and including 50 percent of the area of the building or addition of a new building system. Level 2 alterations also include the extension or addition of any system or equipment. The purpose of Chapter 8 is to provide detailed requirements and provisions to identify the required improvements in the existing building elements, means of egress, fire protection, structural systems, energy efficiency, and other building systems include electrical, mechanical and plumbing when a building is being altered.

  Chapter 9 Alterations—Level 3.

  Chapter 9 provides the technical requirements for those existing buildings that undergo Level 3 alterations. Level 3 alterations are those involving alterations that cover 50 percent of the aggregate area of the building. Under certain situations, this chapter also intends to improve the safety of certain building features beyond the work area and in other parts of the building where no alteration work might be taking place.

  Chapter 10 Change of Occupancy.

  The purpose of Chapter 10 is to address existing buildings that are subject to a change of occupancy. This chapter is an assembly of requirements to upgrade safety without having to comply fully as a new building. A change of occupancy classification is considered a change of occupancy, however, it will involve a higher level of regulation since the use of the building has made a more significant change.

  2025 CALIFORNIA EXISTING BUILDING CODE xiii

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  Chapter 11 Additions.

  Chapter 11 provides the requirements for additions, which are considered new construction. The requirements focus on safely integrating the addition with the existing building. This includes issues such as limiting the overall height and area of the building where the addition is not separated by a fire wall.

  Chapter 12 Historic Buildings —Reserved

  Chapter 12 is not adopted by the State of California. Historic buildings and structures shall comply with Part 8, Title 24, California Code of Regulations.

  Chapter 13 Performance Compliance Methods.

  Chapter 13 allows for existing buildings to be evaluated to show that alterations or a change of occupancy, while not meeting new construction requirements, will provide a level of safety to demonstrate compliance. Provisions are based on a numerical scoring system involving 21 safety parameters where, when evaluated, such buildings must meet a minimum overall safety score.

• CALGreen § 150.2 Medium relevance — show source text

  For alterations that change the occupancy classification of the building, the requirements specified in Section 150.2 apply to the occupancy after the alterations. C. Multifamily buildings. Section 180.0 applies to new construction in existing multifamily buildings. New construction in existing buildings includes additions, alterations and repairs. Section 180.0 specifies requirements that uniquely apply to additions, alterations or repairs to existing buildings, and specifies which requirements in other sections also apply. For alterations that change the occupancy classification of the building, the requirements specified in Section 180.0 apply to the occupancy after the alterations. 4. Installation of insulation in existing buildings. Section 110.8(d) applies to buildings in which insulation is being installed in existing attics, or on existing water heaters or existing space conditioning ducts. 5. Outdoor lighting. Sections 110.9, 130.0, 130.2, 130.4, 140.7, and 150.0 apply to newly constructed outdoor lighting systems, and Section 141.0 applies to outdoor lighting that is either added or altered. 6. Signs. Sections 130.0, 130.3 and 140.8 apply to newly constructed signs located either indoors or outdoors, and Section 141.0 applies to sign alterations located either indoors or outdoors.

  2025 CALIFORNIA ENERGY CODE 3

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  ALL OCCUPANCIES—GENERAL PROVISIONS

  (f) Mixed occupancy. When a building is designed and constructed for more than one type of occupancy (residential and nonresidential), the space for each occupancy shall meet the provisions of Part 6 applicable to that occupancy.

  Exception 1 to Section 100.0(f): If one occupancy constitutes at least 80 percent of the conditioned floor area of the building, the entire building envelope, HVAC and water heating may be designed to comply with the provisions of Part 6 applicable to that occupancy, provided that the applicable lighting requirements in Sections 140.6 through 140.8, 150.0(k), or 160.5 and 170.2(e) are met for each occupancy and space, and mandatory measures in Sections 110.0 through 130.5, 150.0, and 160.0 through 160.9 are met for each occupancy and space.

  Exception 2 to Section 100.0(f): If one occupancy constitutes at least 90 percent of the combined conditioned plus unconditioned floor area of the building, the entire building indoor lighting may be designed to comply with only the lighting provisions of Part 6 applicable to that occupancy.

  (g) Administrative requirements. Administrative requirements relating to permit requirements, enforcement by the Commission, locally adopted energy standards, interpretations, claims of exemption, approved calculation methods, rights of appeal, and certification and labeling requirements of fenestration products and roofing products are specified in California Code of Regulations, Title 24, Part 1, Sections 10-101 to 10-114.

  (h) Certification requirements for manufactured equipment, products and devices. Part 6 limits the installation of manufactured equipment, products and devices to those that have been certified as specified by Sections 110.0 and 110.1. Requirements for manufactured equipment, products, and devices, when not specified in Title 24 Part 6, are specified in California Code of Regulations, Title 20, Sections 1601–1609.

• California Green Building Standards Code (CALGreen) Medium relevance — show source text

  IN THOUSANDS OF BTU PER HOUR**|APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR| |VENT
  HEIGHT
  H
  (feet)|CONNECTOR
  RISE
  R
  (feet)|FAN|FAN|NAT|FAN|FAN|NAT|FAN|FAN|NAT| |VENT
  HEIGHT
  H
  (feet)|CONNECTOR
  RISE
  R
  (feet)|Min|Max|Max|Min|Max|Max|Min|Max|Max| |6|1
  2
  3|262
  271
  279|293
  331
  361|183
  219
  247|325
  334
  344|373
  422
  462|234
  281
  316|447
  458
  468|463
  524
  574|286
  344
  385| |8|1
  2
  3|285
  293
  302|316
  353
  381|191
  228
  256|352
  360
  370|403
  450
  489|244
  292
  328|481
  492
  501|502
  560
  609|299
  355
  400| |10|1
  2
  3|302
  311
  320|335
  369
  398|196
  235
  265|372
  381
  391|429
  473
  511|252
  302
  339|506
  517
  528|534
  589
  637|308
  368
  413| |15|1
  2
  3|312
  321
  331|380
  411
  438|208
  248
  281|397
  407
  418|482
  522
  557|266
  317
  360|556
  568
  579|596
  646
  690|324
  387
  437| |20|1
  2
  3|306
  317
  326|425
  453
  476|217
  259
  294|390
  400
  412|538
  574
  607|276
  331
  375|546
  558
  570|664
  709
  750|336
  403
  457| |30|1
  2
  3|296
  307
  316|497
  521
  542|230
  274
  309|378
  389
  400|630
  662
  690|294
  349
  394|528
  541
  555|779
  819
  855|358
  425
  482| |50|1
  2

• CALGreen § 406.2.2 Medium relevance — show source text

  406.2.2 Clear height. The clear height of each floor level in vehicle and pedestrian traffic areas shall be not less than 7 feet (2134 mm). Canopies under which fuels are dispensed shall have a clear height in accordance with Section 406.7.2. [DSA-AC, HCD 1-AC] The clear height of vehicle and pedestrian areas required to be accessible shall comply with Chapter 11A or 11B, as applicable.

  Exception: A lower clear height is permitted for a parking tier in mechanical-access open parking garages where approved by the building official.

  [BE] 406.2.3 Accessible parking spaces. Where parking is provided, accessible parking spaces, access aisles and vehicular routes serving accessible parking shall be provided in accordance with Chapter 11A or Chapter 11B, as applicable.

  406.2.4 Floor surfaces. Floor surfaces shall be of concrete or similar approved noncombustible and nonabsorbent materials. The area of floor used for the parking of automobiles or other vehicles shall be sloped to facilitate the movement of liquids to a drain or toward the main vehicle entry doorway. The surface of vehicle fueling pads in motor fuel-dispensing facilities shall be in accordance with Section 406.7.1.

  Exceptions:

  1. Asphalt parking surfaces shall be permitted at ground level for public parking garages and private carports.
  2. Slip-resistant, nonabsorbent, interior floor finishes having a critical radiant flux not more than 0.45 W/cm [2], as determined by ASTM E648 or NFPA 253, shall be permitted in repair garages.

  406.2.5 Sleeping rooms. Openings between a motor vehicle-related occupancy and a room used for sleeping purposes shall not be permitted.

  406.2.6 Fuel dispensing. The dispensing of fuel shall only be permitted in motor fuel-dispensing facilities in accordance with Section 406.7.

  406.2.7 Electric vehicle charging stations and systems. Where provided, electric vehicle charging systems shall be installed in accordance with the California Electrical Code and the California Green Building Standards Code . Electric vehicle charging system equipment shall be listed and labeled in accordance with UL 2202. Electric vehicle supply equipment shall be listed and labeled in accordance with UL 2594. Accessibility to electric vehicle charging stations shall be provided in accordance with Chapters 11A and/or 11B.

  406.2.8 Mixed occupancies and uses. Mixed uses shall be allowed in the same building as public parking garages and repair garages in accordance with Section 508.1. Mixed uses in the same building as an open parking garage are subject to Sections 402.4.2.3, 406.5.11, 508.1, 510.3, 510.4 and 510.7.

  406.2.9 Equipment and appliances. Equipment and appliances shall be installed in accordance with Sections 406.2.9.1 through 406.2.9.3 and the California Mechanical Code, California Plumbing Code and California Electrical Code.

• CALGreen § 203.1.2.1 Medium relevance — show source text

  In addition, a minimum of two of
  the efficiency measures specified in Sections A4.203.1.2.1 through
  A4.203.1.2.8 will be required to be met.
  · Roof Deck Insulation or Ducts in Conditioned Space.
  · High-performance Walls.
  · Compact Hot Water Distribution System.
  · Drain Water Heat Recovery.
  · High Performance Vertical Fenestration.
  · Heat Pump Water Heater Demand Management.
  · Battery Storage System Controls.
  · **Heat Pump Space and Water Heating.||2|2|||| |**A4.203.1.3 Consultation with local electric service provider.**Local
  jurisdictions considering adoption of reduced EDR targets based on
  using solar photovoltaic (PV) systems larger than required by the
  California Energy Code shall consult with the local electric service
  provider to ensure that that PV system sizing required to comply with
  the EDR targets will be acceptable to the local electric service
  provider.||2|2||||

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A4-25

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  APPENDIX A4 — RESIDENTIAL VOLUNTARY MEASURES

  SECTION A4.602—RESIDENTIAL OCCUPANCIES APPLICATION CHECKLIST—continued

  FEATURE OR MEASURE	LEVELS APPLICANT TO SELECT ELECTIVE MEASURES	Col3	Col4	VERIFICATIONS ENFORCING AGENCY TO SPECIFY VERIFICATION METHOD	Col6	Col7
  FEATURE OR MEASURE	Mandatory	Prerequisites and electives1	Prerequisites and electives1	Enforcing Agency  All	Installer or Designer  All	Third party  All
  FEATURE OR MEASURE	Mandatory	Tier 1	Tier 2	Tier 2	Tier 2	Tier 2
  WATER EFFICIENCY AND CONSERVATION
  Indoor Water Use
  4.303.1Plumbing fixtures (water closets and urinals) and fittings (showerheads, faucets and pre-rinse spray valves) installed in residential buildings shall comply with the prescriptive requirements of Sections 4.303.1.1 through 4.303.1.4.5.						
  4.303.2 Submeters for multifamily building and dwelling units in **mixed-use residential/commercial buildings.

• CALGreen § 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