What receptacle configurations, connector types and raceway sizing are required for residential EV readiness?

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

• § 5-6 High relevance — show source text

  For office and retail buildings the maximum allowed kVA to be utilized for EV capable spaces is 25 percent.|

  5-6 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

  NONRESIDENTIAL MANDATORY MEASURES

  5.106.5.3.6.1 Receptacle configurations. 208/240V EV charging receptacles shall comply with one of the following configurations:

  1. For 20-ampere receptacles, NEMA 6-20R.
  2. For 30-ampere receptacles, NEMA 14-30R.
  3. For 50-ampere receptacles, NEMA 14-50R.

  5.106.5.3.6.2 EV Charger connectors. EV chargers shall be equipped with SAE J1772 with a maximum output 240 Volts AC or SAE J3400 connectors. When using level 2 SAE J3400 connectors, supplied by a 480 V 3-phase service, at least 20 percent of the EV charger connectors shall be SAE J1772 with a maximum output 240 Volts AC.

  5.106.5.3.6.3 Raceway capacity requirements. To allow for future upgrades to the electrical conductors serving low power Level 2 charging receptacles, the listed raceway serving such receptacles shall be sized to allow the installation of a dedicated 208/240-volt 40-ampere branch circuit. Where no raceway is used, the conductors shall be sized to accommodate a 208/240-volt 40-ampere receptacle.

  5.106.5.4 Additions or alterations to existing buildings or parking facilities [A]. [BSC-CG] Existing buildings or parking facilities being modified by one of the following shall comply with Section 5.106.5.4.1 or 5.106.5.4.2. When EVSE is installed, accessible EVCS shall be provided in accordance with the California Building Code, Chapter 11B, Section 11B-228.3.

  1. When the scope of construction work includes an increase in power supply to an electric service panel as part of a parking facility addition or alteration.
  2. When a new photovoltaic system is installed covering existing parking spaces.
  3. When additions or alterations to existing buildings are triggered pursuant to code Section 301.3 and the scope of work includes an increase in power supply to an electric service panel.

  Exceptions:

  1. On a case-by-case basis where the local enforcing agency has determined compliance with this section is not feasible based upon one of the following conditions: a. Where there is no local utility power supply. b. Where the local utility is unable to supply adequate power. c. Where there is evidence suitable to the local enforcement agency substantiating that additional local utility infrastructure design requirements, directly related to the implementation of Section 5.106.5.3, may adversely impact the construction cost of the project. d. Where demonstrated as impracticable excluding local utility service or utility infrastructure issues.
  2. Remote parking facilities that do not have access to the building service panel.
  3. Parking area lighting upgrades where no trenching is part of the scope of work.
  4. Emergency repairs, including but not limited to water line break in parking facilities, natural disaster repairs, etc.
• § 6-20 High relevance — show source text

  1. Where the total number of dwelling units exceeds the number of unassigned parking spaces, all unassigned parking spaces shall be provided with one low power Level 2 EV charging receptacle. Exception: Areas of parking facilities served by parking lifts, including but not limited to, automated mechanical-access open parking garages as defined in the California Building Code ; or parking facilities otherwise incapable of supporting electric vehicle charging. c. Multifamily parking facilities with assigned and unassigned parking. Where multifamily buildings are provided with both assigned and unassigned parking spaces equal to or greater than the number of dwelling units, at least one low power Level 2 EV charging receptacle shall be provided for each dwelling unit at either the assigned or unassigned parking space, but not both. d. Receptacle power source. EV charging receptacles in multifamily parking facilities at assigned parking spaces shall be provided with a dedicated branch circuit connected to the dwelling unit’s electrical panel, unless determined as infeasible by the project builder or designer and subject to concurrence of the local enforcing agency. Exception: Areas of parking facilities served by parking lifts, including but not limited to, automated mechanical-access open parking garages as defined in the California Building Code ; or parking facilities otherwise incapable of supporting electric vehicle charging. e. Receptacle configurations. 208/240V EV charging receptacles shall comply with one of the following configurations:
  2. For 20-ampere receptacles, NEMA 6-20R
  3. For 30-ampere receptacles, NEMA 14-30R
  4. For 50-ampere receptacles, NEMA 14-50R

  4-4 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

  RESIDENTIAL MANDATORY MEASURES

  2. EV ready parking spaces with EV chargers. a. Multifamily parking facilities with unassigned or common use parking. In addition to the low power Level 2 EV charging receptacle requirements of Section 4.106.4.2.2 (1), twenty-five (25) percent of unassigned or common use parking spaces not already provided with low power Level 2 EV charging receptacles, pursuant to Section 4.106.4.2.2 (1), shall be equipped with Level 2 EV chargers and shall be made available for use by all residents or guests. b. Ev charger connectors. EV chargers shall be equipped with J1772 or J3400 connectors. c. An automatic load management system (ALMS) may be used to reduce the maximum required electrical capacity to each space served by the ALMS. The electrical system and any on-site distribution transformers shall have sufficient capacity to deliver at least 3.3 kW simultaneously to each EV charging station (EVCS) served by the ALMS. The branch circuit shall have a minimum capacity of 40 amperes, and installed EV chargers shall have a capacity of not less than 30 amperes.

  4.106.4.2.2.1 Electric vehicle charging stations (EVCS). Electric vehicle charging stations required by Section 4.106.4.2.2, Item 2, with EV chargers installed shall comply with Section 4.106.4.2.2.1.1.

• § 5.106.5.3.1 High relevance — show source text

  At least one Level 2 EVSE shall be provided.
  3. Maximum allowed kVA to be utilized for EV capable spaces is 75 percent.
  4. If EV capable spaces are utilized, they shall meet the requirements of Section 5.106.5.3.1 EV capable spaces.
  5. For office and retail buildings the maximum allowed kVA to be utilized for EV capable spaces is 25 percent.|1. Level 2 EVSE @ 6.6 kVA minimum.
  2. At least one Level 2 EVSE shall be provided.
  3. Maximum allowed kVA to be utilized for EV capable spaces is 75 percent.
  4. If EV capable spaces are utilized, they shall meet the requirements of Section 5.106.5.3.1 EV capable spaces.
  5. For office and retail buildings the maximum allowed kVA to be utilized for EV capable spaces is 25 percent.|1. Level 2 EVSE @ 6.6 kVA minimum.
  2. At least one Level 2 EVSE shall be provided.
  3. Maximum allowed kVA to be utilized for EV capable spaces is 75 percent.
  4. If EV capable spaces are utilized, they shall meet the requirements of Section 5.106.5.3.1 EV capable spaces.
  5. For office and retail buildings the maximum allowed kVA to be utilized for EV capable spaces is 25 percent.|1. Level 2 EVSE @ 6.6 kVA minimum.
  2. At least one Level 2 EVSE shall be provided.
  3. Maximum allowed kVA to be utilized for EV capable spaces is 75 percent.
  4. If EV capable spaces are utilized, they shall meet the requirements of Section 5.106.5.3.1 EV capable spaces.
  5. For office and retail buildings the maximum allowed kVA to be utilized for EV capable spaces is 25 percent.|

  5-6 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

  NONRESIDENTIAL MANDATORY MEASURES

  5.106.5.3.6.1 Receptacle configurations. 208/240V EV charging receptacles shall comply with one of the following configurations:

  1. For 20-ampere receptacles, NEMA 6-20R.
  2. For 30-ampere receptacles, NEMA 14-30R.
  3. For 50-ampere receptacles, NEMA 14-50R.

  5.106.5.3.6.2 EV Charger connectors. EV chargers shall be equipped with SAE J1772 with a maximum output 240 Volts AC or SAE J3400 connectors. When using level 2 SAE J3400 connectors, supplied by a 480 V 3-phase service, at least 20 percent of the EV charger connectors shall be SAE J1772 with a maximum output 240 Volts AC.

  5.106.5.3.6.3 Raceway capacity requirements. To allow for future upgrades to the electrical conductors serving low power Level 2 charging receptacles, the listed raceway serving such receptacles shall be sized to allow the installation of a dedicated 208/240-volt 40-ampere branch circuit. Where no raceway is used, the conductors shall be sized to accommodate a 208/240-volt 40-ampere receptacle.

• § 1.2. High relevance — show source text

  RESIDENTIAL MANDATORY MEASURES

  1.2. Where there is evidence suitable to the local enforcing agency substantiating that additional local utility infrastructure design requirements, directly related to the implementation of Section 4.106.4, may adversely impact the construction cost of the project. 2. Accessory Dwelling Units (ADU) and Junior Accessory Dwelling Units (JADU) without additional parking facilities.

  4.106.4.1 New one- and two-family dwellings and townhouses with attached private garages. For each dwelling unit, install a listed raceway to accommodate a dedicated 208/240-volt branch circuit. The raceway shall not be less than trade size 1 (nominal 1-inch inside diameter). The raceway shall originate at the main service or subpanel and shall terminate into a listed cabinet, box or other enclosure in close proximity to the proposed location of an EV charger. Raceways are required to be continuous at enclosed, inaccessible or concealed areas and spaces. The service panel and/or subpanel shall provide capacity to install a 40-ampere 208/240-volt minimum dedicated branch circuit and space(s) reserved to permit installation of a branch circuit overcurrent protective device.

  Exception: A raceway is not required if a minimum 40-ampere 208/240-volt dedicated EV branch circuit is installed in close proximity to the proposed location of an EV charger at the time of original construction in accordance with the California Elec- trical Code .

  4.106.4.1.1 Identification. The service panel or subpanel circuit directory shall identify the overcurrent protective device space(s) reserved for future EV charging as “EV CAPABLE”. The raceway termination location shall be permanently and visibly marked as “EV CAPABLE”.

  4.106.4.2 New multifamily dwellings, hotels and motels and new residential parking facilities. When parking is provided, parking spaces for new multifamily dwellings, hotels and motels shall meet the requirements of Section 4.106.4.2.2. Calculations for spaces shall be rounded up to the nearest whole number. A parking space served by electric vehicle supply equipment or designed as an EV charging space shall count as at least one standard automobile parking space only for the purpose of complying with any applicable minimum parking space requirements established by a local jurisdiction. See Vehicle Code Section 22511.2 for further details.

  4.106.4.2.1 Reserved.

  4.106.4.2.2 Multifamily dwellings.

  1. EV ready parking spaces with receptacles. a. Multifamily parking facilities with assigned parking. Where dwelling units are provided with assigned parking spaces equal to or greater than the number of dwelling units, at least one low power Level 2 EV charging receptacle shall be provided at an assigned parking space for each dwelling unit.
  2. Where the total number of dwelling units exceeds the number of assigned parking spaces, all assigned parking spaces shall be provided with one low power Level 2 EV charging receptacle. Exception: Areas of parking facilities served by parking lifts, including but not limited to, automated mechanical-access open parking garages as defined in the California Building Code ; or parking facilities otherwise incapable of supporting electric vehicle charging. b. Multifamily parking facilities with unassigned parking. Where dwelling units are provided with unassigned parking spaces equal to or greater than the number of dwelling units, at least one low power Level 2 EV charging receptacle shall be provided at an unassigned parking space for each dwelling unit.
• § 5.106.5.3.2.1 High relevance — show source text

  5.106.5.3.2.1 Receptacle configurations. 208/240V EV charging receptacles shall comply with one of the following configurations:

  1. For 20-ampere receptacles, NEMA 6-20R
  2. For 30-ampere receptacles, NEMA 14-30R
  3. For 50-ampere receptacles, NEMA 14-50R

  5.106.5.3.2.2 EV charger connectors. EV chargers shall be equipped with SAE J1772 with a maximum output 240 Volts AC or SAE J3400 connectors.

  When using level 2 SAE J3400 SAE connectors, supplied by a 480 V 3-phase service, at least 20 percent of the EV charger connectors shall be SAE J1772 with a maximum output 240 Volts AC.

  5.106.5.3.2.3 The installation of each DCFC EVSE shall be permitted to reduce the minimum number of required EV capable spaces without EVSE or EVCS with Level 2 EVSE by five, and reduce proportionally the required electrical load capacity to the service panel or subpanel.

  5.106.5.3.2.4 The installation of two low power Level 2 EV charging receptacles shall be permitted to reduce the minimum number of required EV capable spaces without EVSE in Table 5.106.5.3.1 by one.

  5.106.5.3.2.4.1 Raceway capacity requirements. To allow for future upgrades to the electrical conductors serving low power Level 2 charging receptacles, the listed raceway serving such receptacles shall be sized to allow the installation of a dedicated 208/240-volt 40-ampere branch circuit. Where no raceway is used, the conductors shall be sized to accommodate a 208/240-volt 40-ampere receptacle.

  5.106.5.3.3 Use of automatic load management systems (ALMS). ALMS shall be permitted for EVCS. When ALMS is installed, the required electrical load capacity specified in Section 5.106.5.3.1 for each EVCS may be reduced when serviced by an EVSE controlled by an ALMS. Each EVSE controlled by an ALMS shall deliver a minimum 30 amperes to an EV when charging one vehicle and shall deliver a minimum 3.3 kW while simultaneously charging multiple EVs.

  5.106.5.3.4 Accessible electric vehicle charging station (EVCS) . When EVSE is installed, accessible EVCS shall be provided in accordance with the California Building Code, Chapter 11B, Section 11B-228.3.

  5.106.5.3.5 Electric vehicle charging station signage. Electric vehicle charging stations shall be identified by signage or pavement markings in compliance with Caltrans Traffic Operations Policy Directive 13-01 (Zero Emission Vehicle Signs and Pavement Markings) or its successor(s).

  5.106.5.3.6 Electric vehicle charging stations (EVCS)—power allocation method. The power allocation method may be used as an alternative to the requirements in Section 5.106.5.3.1, Section 5.106.5.3.2 and associated Table 5.106.5.3.1. Use Table 5.106.5.3.6 to determine the total power in kVA required based on the total number of actual parking spaces.

• § 106.8 High relevance — show source text

  New multifamily dwellings and hotels and motels.**
  1. EV Ready Parking Spaces with Receptacles.
  a. Hotels and motels. Sixty (60) percent of the total number of
  parking spaces shall be equipped with low power Level 2 EV
  charging receptacles.
  **b. Raceway Capacity Requirements.**To allow for future
  upgrades to the electrical conductors serving low power Level 2
  EV charging receptacles, the listed raceway serving such recep-
  tacles shall be sized to allow the installation of a dedicated 208/
  240-volt 40-ampere branch circuit. Where no raceway is used,
  the conductors shall be sized to accommodate a 208/240-volt
  40-ampere receptacle.
  Exception:
  Hotels and motels may substitute Level 2 EV chargers for some or
  all of the required EV charging receptacles.
  2. EV Ready Parking Spaces with EV Chargers.
  **a. Hotels and motels.**Forty (40) percent of the total number of
  parking spaces shall be equipped with low power Level 2 EV
  charging receptacles.
  b. Multifamily Parking Facilities with Unassigned or Common
  **Use Parking.**In addition to the low power Level 2 EV charging
  receptacle requirements of Section A4.106.8 (Tier 1, subsection
  1), forty (40) percent of the total number of parking spaces shall
  be equipped with Level 2 EV chargers and shall be made avail-
  able for use by all residents or guests.|||2|||| |Innovative Concepts and Local
  Environmental Conditions||||||| |A4.108.1 Items in this section are necessary to address innovative
  concepts or local environmental conditions.||||||| |Item 1|
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  | |Item 2|
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  | |Item 3||||||| |ENERGY EFFICIENCY||||||| |General||||||| |4.201.1 Building meets or exceeds the requirements of the_California_
  _Building Energy Efficiency Standards_3.||2|2|||| |Performance Approach for Newly
  Constructed Buildings||||||| |**A4.203.1.1 Hourly Source Energy Rating (EDR1).**EDR1 ratings for
  building design shall be computed by Energy Compliant software and
  shall reduce the EDR1 required by the software by the compliance
  margins specified in Table A4.203.1.1.||2|2|||| |**A4.203.1.2 Prerequisite options.

• § 4.106.4.2 High relevance — show source text

  4.106.4.2 New multifamily dwellings, hotels and motels and new residential parking facilities. When parking is provided, parking spaces for new multifamily dwellings, hotels and motels shall meet the requirements of Section 4.106.4.2.2. Calculations for spaces shall be rounded up to the nearest whole number. A parking space served by electric vehicle supply equipment or designed as an EV charging space shall count as at least one standard automobile parking space only for the purpose of complying with any applicable minimum parking space requirements established by a local jurisdiction. See Vehicle Code Section 22511.2 for further details.

  4.106.4.2.1 Reserved.

  4.106.4.2.2 Multifamily dwellings.

  1. EV ready parking spaces with receptacles. a. Multifamily parking facilities with assigned parking. Where dwelling units are provided with assigned parking spaces equal to or greater than the number of dwelling units, at least one low power Level 2 EV charging receptacle shall be provided at an assigned parking space for each dwelling unit.
  2. Where the total number of dwelling units exceeds the number of assigned parking spaces, all assigned parking spaces shall be provided with one low power Level 2 EV charging receptacle. Exception: Areas of parking facilities served by parking lifts, including but not limited to, automated mechanical-access open parking garages as defined in the California Building Code ; or parking facilities otherwise incapable of supporting electric vehicle charging. b. Multifamily parking facilities with unassigned parking. Where dwelling units are provided with unassigned parking spaces equal to or greater than the number of dwelling units, at least one low power Level 2 EV charging receptacle shall be provided at an unassigned parking space for each dwelling unit.
  3. Where the total number of dwelling units exceeds the number of unassigned parking spaces, all unassigned parking spaces shall be provided with one low power Level 2 EV charging receptacle. Exception: Areas of parking facilities served by parking lifts, including but not limited to, automated mechanical-access open parking garages as defined in the California Building Code ; or parking facilities otherwise incapable of supporting electric vehicle charging. c. Multifamily parking facilities with assigned and unassigned parking. Where multifamily buildings are provided with both assigned and unassigned parking spaces equal to or greater than the number of dwelling units, at least one low power Level 2 EV charging receptacle shall be provided for each dwelling unit at either the assigned or unassigned parking space, but not both. d. Receptacle power source. EV charging receptacles in multifamily parking facilities at assigned parking spaces shall be provided with a dedicated branch circuit connected to the dwelling unit’s electrical panel, unless determined as infeasible by the project builder or designer and subject to concurrence of the local enforcing agency. Exception: Areas of parking facilities served by parking lifts, including but not limited to, automated mechanical-access open parking garages as defined in the California Building Code ; or parking facilities otherwise incapable of supporting electric vehicle charging. e. Receptacle configurations. 208/240V EV charging receptacles shall comply with one of the following configurations:
  4. For 20-ampere receptacles, NEMA 6-20R
  5. For 30-ampere receptacles, NEMA 14-30R
  6. For 50-ampere receptacles, NEMA 14-50R

  4-4 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

• § 26.3 High relevance — show source text

  4|-26.3|-22.3| |TABLE R301.2.1(1)—COMPONENT AND CLADDING LOADS FOR A BUILDING
  WITH A MEAN ROOF HEIGHT OF 30 FEET LOCATED IN EXPOSURE B (ASD) (psf)a, b, c, d, e, f, g|** ULTIMATE DESIGN WIND SPEED,Vult|** 95.0|** Pos**|4.0|3.7|3.4|3.1|4.0|3.7|3.4|3.1|4.0|3.7|3.4|3.1|6.4|5.9|5.1|4.5|6.4|5.9|5.1|4.5|6.4|5.9|5.1|4.5|6.4|5.9|5.1|4.5|6.4|5.9|5.1|4.5|6.4|5.9| |TABLE R301.2.1(1)—COMPONENT AND CLADDING LOADS FOR A BUILDING
  WITH A MEAN ROOF HEIGHT OF 30 FEET LOCATED IN EXPOSURE B (ASD) (psf)a, b, c, d, e, f, g|** ULTIMATE DESIGN WIND SPEED,Vult|** 90.0|** Neg**|-13.9|-12.4|-10.3|-8.7|-18.4|-16.4|-13.7|-11.7|-25.0|-21.0|-15.7|-11.7|-16.2|-13.9|-10.9|-8.6|-21.3|-18.4|-14.6|-11.7|-28.0|-24.0|-18.7|-14.7|-12.4|-11.2|-9.7|-8.5|-19.9|-17.0|-13.1|-10.2|-23.6|- 20.0| |TABLE R301.2.1(1)—COMPONENT AND CLADDING LOADS FOR A BUILDING
  WITH A MEAN ROOF HEIGHT OF 30 FEET LOCATED IN EXPOSURE B (ASD) (psf)a, b, c, d, e, f, g|** ULTIMATE DESIGN WIND SPEED,Vult|** 90.0|** Pos**|3.6|3.3|3.0|2.8|3.6|3.3|3.0|2.8|3.6|3.3|3.0|2.8|5.8|5.3|4.6|4.1|5.8|5.3|4.6|4.1|5.8|5.3|4.6|4.1|5.8|5.3|4.6|4.1|5.8|5.3|4.6|4.1|5.8|5.3| |TABLE R301.2.1(1)—COMPONENT AND CLADDING LOADS FOR A BUILDING
  **WITH A MEAN ROOF HEIGHT OF 30 FEET LOCATED IN EXPOSURE B (ASD) (psf)a, b, c, d, e, f,

• § 4.106.3 High relevance — show source text

  (Website: https://www.waterboards.ca.gov/water_issues/programs/stormwater/construction.html)

  4.106.3 Grading and paving. Construction plans shall indicate how the site grading or drainage system will manage all surface water flows to keep water from entering buildings. Examples of methods to manage surface water include, but are not limited to, the following:

  1. Swales

  2. Water collection and disposal systems

  3. French drains

  4. Water retention gardens

  5. Other water measures which keep surface water away from buildings and aid in groundwater recharge.

  Exception: Additions and alterations not altering the drainage path.

  4.106.4 Electric vehicle (EV) charging for new construction. New construction shall comply with Section 4.106.4.1 or 4.106.4.2. Electric vehicle supply equipment (EVSE) shall comply with the California Electrical Code.

  Exceptions:

  1. On a case-by-case basis, where the local enforcing agency has determined EV charging and infrastructure are not feasible based upon one or more of the following conditions: 1.1. Where there is no local utility power supply or the local utility is unable to supply adequate power.

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE 4-3

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  RESIDENTIAL MANDATORY MEASURES

  1.2. Where there is evidence suitable to the local enforcing agency substantiating that additional local utility infrastructure design requirements, directly related to the implementation of Section 4.106.4, may adversely impact the construction cost of the project. 2. Accessory Dwelling Units (ADU) and Junior Accessory Dwelling Units (JADU) without additional parking facilities.

  4.106.4.1 New one- and two-family dwellings and townhouses with attached private garages. For each dwelling unit, install a listed raceway to accommodate a dedicated 208/240-volt branch circuit. The raceway shall not be less than trade size 1 (nominal 1-inch inside diameter). The raceway shall originate at the main service or subpanel and shall terminate into a listed cabinet, box or other enclosure in close proximity to the proposed location of an EV charger. Raceways are required to be continuous at enclosed, inaccessible or concealed areas and spaces. The service panel and/or subpanel shall provide capacity to install a 40-ampere 208/240-volt minimum dedicated branch circuit and space(s) reserved to permit installation of a branch circuit overcurrent protective device.

  Exception: A raceway is not required if a minimum 40-ampere 208/240-volt dedicated EV branch circuit is installed in close proximity to the proposed location of an EV charger at the time of original construction in accordance with the California Elec- trical Code .

  4.106.4.1.1 Identification. The service panel or subpanel circuit directory shall identify the overcurrent protective device space(s) reserved for future EV charging as “EV CAPABLE”. The raceway termination location shall be permanently and visibly marked as “EV CAPABLE”.

• § 5.106.5.6.1 High relevance — show source text

  proposed location of the EV capable space and into a suitable listed cabinet, box, enclosure or equivalent. A common raceway may be used to serve multiple EV capable spaces. 2. A service panel or subpanel(s) shall be provided with panel space and electrical load capacity for a dedicated 208/240 volt, 40-ampere minimum branch circuit for each EV capable space, with delivery of 30-ampere minimum to an installed EVSE at each EVCS.

  3. The electrical system and any on-site distribution transformers shall have sufficient capacity to supply full rated amperage at each EV capable space.
  4. The service panel or subpanel circuit directory shall identify the reserved overcurrent protective device space(s) as “EV CAPABLE.” The raceway termination location shall be permanently and visibly marked as “EV CAPABLE.”

  TABLE 5.106.5.6.1	Col2	Col3
  TOTAL NUMBER OF PARKING SPACES	NUMBER OF REQUIRED EV CAPABLE SPACES	NUMBER OF REQUIRED EVCS2
  0–9	0	0
  10–25	4	1
  26–50	8	2
  51–75	13	3
  76–100	17	4
  101–150	25	6
  151–200	35	9
  201 and over	20 percent of total1	25 percent of EV capable spaces1
  1. Calculation for spaces shall be rounded up to the nearest whole number. 2. Each EVCS shall reduce the number of required EV capable spaces by the same number.	1. Calculation for spaces shall be rounded up to the nearest whole number. 2. Each EVCS shall reduce the number of required EV capable spaces by the same number.	1. Calculation for spaces shall be rounded up to the nearest whole number. 2. Each EVCS shall reduce the number of required EV capable spaces by the same number.

  5.106.5.6.2 Electric vehicle charging stations (EVCS). EV capable spaces shall be provided with EVSE to create EVCS in the number indicated in Table 5.106.5.6.1 and shall comply with Section 5.106.5.6.2. EVCS shall be serviced by Level 2 or Direct Current Fast Charging (DCFC) EVSE, or with EVSE in any combination of Level 2 and DCFC. Accessible EVCS shall be provided in accordance with California Building Code Chapter 11B .

  5.106.5.6.2.1 Reduced number of EV capable spaces. The installation of each DCFC EVSE shall be permitted to reduce the minimum number of required EV capable spaces indicated in Table 5.106.5.6.1 by five and reduce proportionally the required electrical load capacity to the service panel or subpanel.

  5.106.5.6.2.2 Multiple connectors. EVSE with multiple vehicle connectors capable of charging multiple EVs simultaneously shall be permitted if the electrical load capacity required by Section 5.106.5.6.1 for each EV capable space is accumulatively supplied to the EVSE.

• § 106.8.2.2 Medium relevance — show source text

  Exception: Areas of parking facilities served by parking lifts, including but not limited to automated mechanicalaccess open parking garages as defined in the California Building Code ; or parking facilities otherwise incapable of supporting electric vehicle charging.

  A4.106.8.2.2 Technical requirements. The EV spaces required by Section A4.106.8.2 shall be designed and constructed in accordance with Sections 4.106.4.2, 4.106.4.2.2.1.1, 4.106.4.2.2.1.2, and 4.106.4.2.5.

  SECTION A4.107 (RESERVED)

  SECTION A4.108 —INNOVATIVE CONCEPTS AND LOCAL ENVIRONMENTAL CONDITIONS

  A4.108.1 Innovative concepts and local environmental conditions. The provisions of this code are not intended to prevent the use of any alternate material, appliance, installation, device, arrangement, method, design or method of construction not specifically prescribed by this code. This code does not limit the authority of city, county, or city and county government to make necessary changes to the provisions contained in this code pursuant to Section 101.7.1.

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A4-7

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  APPENDIX A4-8 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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  A4 RESIDENTIAL VOLUNTARY MEASURES

  DIVISION A4.2 – ENERGY EFFICIENCY

  SECTION A4.201—GENERAL

  A4.201.1 Scope. For the purposes of mandatory energy efficiency standards in the California Building Standards Code (Title 24), the California Energy Commission will continue to adopt mandatory standards in the California Energy Code (Title 24, Part 6). It is the intent of these voluntary provisions to encourage local jurisdictions through codification to achieve exemplary performance in the area of building energy efficiency. Local jurisdictions adopting these voluntary provisions as mandatory local energy efficiency standards shall submit the required application and receive the required approval of the California Energy Commission in compliance with Title 24, Part 1, Section 10-106 prior to enforcement. Once the required filing has been verified and finding has been made by the Energy Commission, local jurisdictions shall file an ordinance expressly marking the local modification along with findings and receive the required acceptance from the California Building Standards Commission in compliance with Section 101.7 of this code, prior to enforcement. (Title 24, Part 1, Section 10-106 is available at https://www.energy.ca.gov/programs-and-topics/programs/build- ing-energy-efficiency-standards/2025-building-energy-efficiency

  SECTION A4.202—DEFINITIONS

  A4.202.1 Definitions. The following terms are defined in Chapter 2.

  ENERGY BUDGET.

  LONG-TERM SYSTEM COST (LSC).

  RECOVERED ENERGY, ON-SITE.

  SOLAR POOL HEATING SYSTEM.

  SECTION A4.203—PERFORMANCE APPROACH FOR NEWLY CONSTRUCTED BUILDINGS

• § 407.2.3 Medium relevance — show source text

  Elevators 11B-407.2.3, 11B-411.2.3. Fire alarms 11B-703 Fire and life safety systems 904.3.4, 907.4.2.4, 916.9. Housing accessibility 1110A.2, 1116A.4, 1125A.4, 1127A.7, 1143A.0. Means of egress 1009.9, 1013.0, 1023.8-1023.11.

  New or altered 11B-216. Parking facilities 1109A.8.8.1. Parking spaces 11B-502.6 through 11B- 502.6.3, 11B-502.8. Requirements based on occupancy and use 402.6.4.

  Special amusement areas 411.6. Stairways 11B-504.8. Transportation facilities 11B-810.4, 11B-810.6 Signs 3107, Appendix H Accessibility 1013.4, Chapter 11B Accessible means of egress 1009.8.2, 1009.9, 1009.11 Animated devices H108

  Construction H105, H107 Covered and open mall building 402.6.4

  Doors 1010.2.4, 1010.2.11, 1010.2.12 Electrical H106

  Elevators 1124A, 3002.3, 3007.6.5,

  3008.6.5 Encroachment, public right-of-way 3202.3.1

  Exit 1013, 2702.2 Floor loads 106.1

  Ground H109 Height limitation H109.1, H112.4 Illumination H106.1

  Luminous 403.5.5, 1013.5, 1025

  Marquee H113 Obstruction 1003.3.2, 1003.3.3, H103 Occupant load, assembly 1004.9 Parking spaces 11B-502 Plastic 2611, D102.2.10 Portable H114

  Projecting H112 Protruding objects 1003.3 Roof H110 Stairway identification 1023.8, 1023.9 Standpipe control valve 905.7.1 Toilet room 11B-216.8 Transportation Chapter 11B Variable message 11B-216.13 Walls 703.4, H111 Site Class 1603.1.5, 1613.2 Site Drawings 107.2.6 Site Work 3304 Skilled Nursing and Intermediate-care Facilities [OSHPD 2] 1225 Application 1225.2 Definitions 1225.3

• § 106.8 High relevance — show source text

  3. Use open grid pavement system or pervious or permeable pavement system.
  4. Locate 50 percent of parking underground or use multilevel parking.
  5. Other methods of reducing heat island effects acceptable to the enforcing agency.

  Note: Local agencies may have ordinances requiring mitigation of heat island effects through building or parking lot shading, tree plantings, landscaping, use of pervious pavements and other approved methods.

  A4.106.8 Electric vehicle (EV) charging for new construction. New construction shall comply with Section A4.106.8.1 or A4.106.8.2, to facilitate the installation and use of EV ready spaces. Electric vehicle supply equipment (EVSE) shall comply with the California Electrical Code .

  A4.106.8.1 New one- and two-family dwellings and townhouses with attached private garages.

  Tier 1 and Tier 2. For each dwelling unit, a dedicated 208/240-volt branch circuit shall be installed in the raceway required by Section 4.106.4.1. The branch circuit and associated overcurrent protective device shall be rated at 40 amperes minimum. Other electrical components, including a receptacle or blank cover, related to this section shall be installed in accordance with the California Electrical Code.

  A4.106.8.1.1 Identification. The service panel or subpanel circuit directory shall identify the overcurrent protective device designated for future EV charging purposes as “EV READY” in accordance with the California Electrical Code. The receptacle or blank cover shall be identified as “EV READY.”

  A4.106.8.2 New multifamily dwellings, hotels and motels. New multifamily dwellings, hotels and motels shall meet the following requirements.

  A4.106.8.2.1 Multifamily dwellings, hotels and motels.

  Tier 1. New multifamily dwellings, hotels and motels.

  1. EV ready parking spaces with receptacles. a. Hotels and motels. Sixty (60) percent of the total number of parking spaces shall be equipped with low power Level 2 EV charging receptacles. b. Raceway capacity requirements. To allow for future upgrades to the electrical conductors serving low power Level 2 EV charging receptacles, the listed raceway serving such receptacles shall be sized to allow

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  APPENDIX A4 — RESIDENTIAL VOLUNTARY MEASURES

  the installation of a dedicated 208/240-volt 40-ampere branch circuit. Where no raceway is used, the conductors shall be sized to accommodate a 208/240-volt 40-ampere receptacle.

• § 106.8.1.1 High relevance — show source text

  A4.106.8.1.1 Identification. The service panel or subpanel circuit directory shall identify the overcurrent protective device designated for future EV charging purposes as “EV READY” in accordance with the California Electrical Code. The receptacle or blank cover shall be identified as “EV READY.”

  A4.106.8.2 New multifamily dwellings, hotels and motels. New multifamily dwellings, hotels and motels shall meet the following requirements.

  A4.106.8.2.1 Multifamily dwellings, hotels and motels.

  Tier 1. New multifamily dwellings, hotels and motels.

  1. EV ready parking spaces with receptacles. a. Hotels and motels. Sixty (60) percent of the total number of parking spaces shall be equipped with low power Level 2 EV charging receptacles. b. Raceway capacity requirements. To allow for future upgrades to the electrical conductors serving low power Level 2 EV charging receptacles, the listed raceway serving such receptacles shall be sized to allow

  APPENDIX A4-6 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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  APPENDIX A4 — RESIDENTIAL VOLUNTARY MEASURES

  the installation of a dedicated 208/240-volt 40-ampere branch circuit. Where no raceway is used, the conductors shall be sized to accommodate a 208/240-volt 40-ampere receptacle.

  Exception: Hotels and motels may substitute Level 2 EV chargers for some or all of the required EV charging receptacles. 2. EV ready parking spaces with EV chargers. a. Hotels and motels. Forty (40) percent of the total number of parking spaces for hotels and motels shall be equipped with Level 2 EV chargers. b. Multifamily parking facilities with unassigned or common use parking. In addition to the low power Level 2 EV charging receptacle requirements of Section A4.106.8 (Tier 1, subsection 1), forty (40) percent of the total number of parking spaces shall be equipped with Level 2 EV chargers and shall be made available for use by all residents or guests.

  Exception: Areas of parking facilities served by parking lifts, including but not limited to automated mechanicalaccess open parking garages as defined in the California Building Code ; or parking facilities otherwise incapable of supporting electric vehicle charging.

  A4.106.8.2.2 Technical requirements. The EV spaces required by Section A4.106.8.2 shall be designed and constructed in accordance with Sections 4.106.4.2, 4.106.4.2.2.1.1, 4.106.4.2.2.1.2, and 4.106.4.2.5.

  SECTION A4.107 (RESERVED)

  SECTION A4.108 —INNOVATIVE CONCEPTS AND LOCAL ENVIRONMENTAL CONDITIONS

  A4.108.1 Innovative concepts and local environmental conditions. The provisions of this code are not intended to prevent the use of any alternate material, appliance, installation, device, arrangement, method, design or method of construction not specifically prescribed by this code. This code does not limit the authority of city, county, or city and county government to make necessary changes to the provisions contained in this code pursuant to Section 101.7.1.

• § 106.5.4 High relevance — show source text

  APPENDIX A4 — RESIDENTIAL VOLUNTARY MEASURES

  A4.106.5.4 Verification. Inspection shall be conducted to ensure roofing materials meet cool roof aged solar reflectance and thermal emittance or SRI values.

  A4.106.6 Vegetated roof. Install a vegetated roof for at least 50 percent of the roof area. Vegetated roofs shall comply with requirements for roof gardens and landscaped roofs in the California Building Code, Chapter 15 and Chapter 16.

  A4.106.7 Reduction of heat island effect for nonroof areas. Reduce nonroof heat islands for 50 percent of sidewalks, patios, driveways or other paved areas by using one or more of the methods listed.

  1. Trees or other plantings to provide shade and that mature within 15 years of planting. Trees should be native or adaptive to the region and climate zones and noninvasive; hardy and resistant to drought, insects and disease; easy to maintain (no frequent shedding of twigs, branches, unwanted fruit or seed pods); and suitable in mature size and environmental requirements for the site. Tree selection and placement should consider location and size of areas to be shaded, location of utilities, views from the structure, distance to sidewalks and foundations, overhangs onto adjacent properties and streets; other infrastructure and adjacent to landscaping. In addition, shading shall not cast a shadow, as specified, on any neighboring solar collectors pursuant to Public Resources Code Section 25981, et seq. (Solar Shade Control Act).
  2. Use high albedo materials with an initial solar reflectance value of at least 0.30 as determined in accordance with American Society for Testing and Materials (ASTM) Standards E1918 or C1549.
  3. Use open grid pavement system or pervious or permeable pavement system.
  4. Locate 50 percent of parking underground or use multilevel parking.
  5. Other methods of reducing heat island effects acceptable to the enforcing agency.

  Note: Local agencies may have ordinances requiring mitigation of heat island effects through building or parking lot shading, tree plantings, landscaping, use of pervious pavements and other approved methods.

  A4.106.8 Electric vehicle (EV) charging for new construction. New construction shall comply with Section A4.106.8.1 or A4.106.8.2, to facilitate the installation and use of EV ready spaces. Electric vehicle supply equipment (EVSE) shall comply with the California Electrical Code .

  A4.106.8.1 New one- and two-family dwellings and townhouses with attached private garages.

  Tier 1 and Tier 2. For each dwelling unit, a dedicated 208/240-volt branch circuit shall be installed in the raceway required by Section 4.106.4.1. The branch circuit and associated overcurrent protective device shall be rated at 40 amperes minimum. Other electrical components, including a receptacle or blank cover, related to this section shall be installed in accordance with the California Electrical Code.

  A4.106.8.1.1 Identification. The service panel or subpanel circuit directory shall identify the overcurrent protective device designated for future EV charging purposes as “EV READY” in accordance with the California Electrical Code. The receptacle or blank cover shall be identified as “EV READY.”

  A4.106.8.2 New multifamily dwellings, hotels and motels. New multifamily dwellings, hotels and motels shall meet the following requirements.

• § 4.106.4.2.3 High relevance — show source text

  4.106.4.2.3 Reserved.

  4.106.4.2.4 Reserved.

  4.106.4.2.5 Electric vehicle ready space signage. Electric vehicle ready spaces shall be identified by signage or pavement markings, in compliance with Caltrans Traffic Operations Policy Directive 13-01 (Zero Emission Vehicle Signs and Pavement Markings) or its successor(s).

  4.106.4.2.6 Hotels and motels.

  1. EV ready parking spaces with receptacles. a. Hotels and motels. Forty (40) percent of the total number of parking spaces shall be equipped with low power Level 2 EV charging receptacles. Exception: Areas of parking facilities served by parking lifts, including but not limited to automated mechanical-access open parking garages as defined in the California Building Code ; or parking facilities otherwise incapable of supporting electric vehicle charging. b. Receptacle configurations. 208/240V EV charging receptacles shall comply with one of the following configurations:
  2. For 20- ampere receptacles, NEMA 6-20R
  3. For 30- ampere receptacles, NEMA 14-30R
  4. For 50- ampere receptacles, NEMA 14-50R
  5. EV Ready parking spaces with EV chargers. a. Hotels and motels. Twenty-five (25) percent of the total number of parking spaces shall be equipped with Level 2 EV chargers.

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  RESIDENTIAL MANDATORY MEASURES

  b. EV charger connectors. EV chargers shall be equipped with J1772 or J3400 connectors. Exception: Areas of parking facilities served by parking lifts, including but not limited to, automated mechanical-access open parking garages as defined in the California Building Code ; or parking facilities otherwise incapable of supporting electric vehicle charging. c. An automatic load management system (ALMS) may be used to reduce the maximum required electrical capacity to each space served by the ALMS. The electrical system and any on-site distribution transformers shall have sufficient capacity to deliver at least 3.3 kW simultaneously to each EV charging station (EVCS) served by the ALMS. The branch circuit shall have a minimum capacity of 40 amperes, and installed EV chargers shall have a capacity of not less than 30 amperes.

  4.106.4.3 Electric vehicle charging for additions and alterations of parking facilities serving existing multifamily buildings, hotels and motels. When existing parking facilities are altered or new parking spaces are added to existing parking facilities, and the work requires a building permit, each parking space added or altered shall have access to either a low power Level 2 EV charging receptacle or Level 2 EV charger, unless determined as infeasible by the project builder or designer and subject to concurrence of the local enforcing agency.

  Exception: Where work requiring a permit is being performed for the installation of 120-volt electrical receptacle(s) for level 1 EV charging.

  4.106.4.4. Bicycle parking. Bicycle parking shall comply with Sections 4.106.4.4.1 through 4.106.4.4.3.

• § 5-5 High relevance — show source text

  Calculation for spaces shall be rounded up to the nearest whole number.
  2. Each EVCS shall reduce the number of required EV capable spaces by the same number.
  3. At least one Level 2 EVSE shall be provided.|1. Calculation for spaces shall be rounded up to the nearest whole number.
  2. Each EVCS shall reduce the number of required EV capable spaces by the same number.
  3. At least one Level 2 EVSE shall be provided.|1. Calculation for spaces shall be rounded up to the nearest whole number.
  2. Each EVCS shall reduce the number of required EV capable spaces by the same number.
  3. At least one Level 2 EVSE shall be provided.|1. Calculation for spaces shall be rounded up to the nearest whole number.
  2. Each EVCS shall reduce the number of required EV capable spaces by the same number.
  3. At least one Level 2 EVSE shall be provided.|

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  NONRESIDENTIAL MANDATORY MEASURES

  5.106.5.3.2 Electric vehicle charging stations (EVCS). EV capable spaces shall be provided with electric vehicle supply equipment (EVSE) to create EVCS in the number indicated in Table 5.106.5.3.1. The EVCS required by Table 5.106.5.3.1 shall be provided with Level 2 EVSE or DCFC as permitted in Section 5.106.5.3.2.3. At least one Level 2 EVSE shall be provided. One EV charger with multiple connectors capable of charging multiple EVs simultaneously shall be permitted if the electrical load capacity required by Section 5.106.5.3.1 for each EV capable space is accumulatively supplied to the EV charger.

  5.106.5.3.2.1 Receptacle configurations. 208/240V EV charging receptacles shall comply with one of the following configurations:

  1. For 20-ampere receptacles, NEMA 6-20R
  2. For 30-ampere receptacles, NEMA 14-30R
  3. For 50-ampere receptacles, NEMA 14-50R

  5.106.5.3.2.2 EV charger connectors. EV chargers shall be equipped with SAE J1772 with a maximum output 240 Volts AC or SAE J3400 connectors.

  When using level 2 SAE J3400 SAE connectors, supplied by a 480 V 3-phase service, at least 20 percent of the EV charger connectors shall be SAE J1772 with a maximum output 240 Volts AC.

  5.106.5.3.2.3 The installation of each DCFC EVSE shall be permitted to reduce the minimum number of required EV capable spaces without EVSE or EVCS with Level 2 EVSE by five, and reduce proportionally the required electrical load capacity to the service panel or subpanel.

  5.106.5.3.2.4 The installation of two low power Level 2 EV charging receptacles shall be permitted to reduce the minimum number of required EV capable spaces without EVSE in Table 5.106.5.3.1 by one.

• § 4.106.4.2.2.1.1 High relevance — show source text

  Exception: Electric vehicle charging stations serving public accommodations, public housing, motels, and hotels shall not be required to comply with this section. See California Building Code, Chapter 11B, for applicable requirements.

  4.106.4.2.2.1.1 Electric vehicle charging stations (EVCS) spaces with EV chargers installed; dimensions and loca- tion. EVCS spaces shall be designed to comply with the following:

  1. The minimum length of each EVCS space shall be 18 feet (5486 mm).
  2. The minimum width of each EVCS space shall be 9 feet (2743 mm).
  3. One in every 25 EVCS spaces, but not less than one, shall also have an 8-foot (2438 mm) wide minimum aisle. A 5-foot (1524 mm) wide minimum aisle shall be permitted provided the minimum width of the EVCS space is 12 feet (3658 mm). Surface slope for this EVCS space and the aisle shall not exceed 1 unit vertical in 48 units horizontal (2.083 percent slope) in any direction. These EVCS spaces shall also comply with at least one of the following: a. The EVCS space shall be located adjacent to an accessible parking space meeting the requirements of the California Building Code, Chapter 11A, to allow use of the EV charger from the accessible parking

  space. b. The EVCS space shall be located on an accessible route, as defined in the California Building Code, Chapter 2, to the building.

  Exception: Electric vehicle charging stations designed and constructed in compliance with the California Building Code, Chapter 11B, are not required to comply with Section 4.106.4.2.2.1.1.

  4.106.4.2.2.1.2 Accessible electric vehicle charging station spaces. In addition to the requirements in Section 4.106.4.2.2.1.1, all EV chargers, where installed, shall comply with the accessibility provisions for EV chargers in the Califor- nia Building Code, Chapter 11B. EV ready spaces and EVCS in multifamily developments shall comply with California Building Code, Chapter 11A, Section 1109A.

  4.106.4.2.3 Reserved.

  4.106.4.2.4 Reserved.

  4.106.4.2.5 Electric vehicle ready space signage. Electric vehicle ready spaces shall be identified by signage or pavement markings, in compliance with Caltrans Traffic Operations Policy Directive 13-01 (Zero Emission Vehicle Signs and Pavement Markings) or its successor(s).

  4.106.4.2.6 Hotels and motels.

  1. EV ready parking spaces with receptacles. a. Hotels and motels. Forty (40) percent of the total number of parking spaces shall be equipped with low power Level 2 EV charging receptacles. Exception: Areas of parking facilities served by parking lifts, including but not limited to automated mechanical-access open parking garages as defined in the California Building Code ; or parking facilities otherwise incapable of supporting electric vehicle charging. b. Receptacle configurations. 208/240V EV charging receptacles shall comply with one of the following configurations:
  2. For 20- ampere receptacles, NEMA 6-20R
  3. For 30- ampere receptacles, NEMA 14-30R
  4. For 50- ampere receptacles, NEMA 14-50R