Title 24 · California Energy Code

How must ‘EV CAPABLE/EV READY’ spaces and panel reserved spaces be identified?

If you reserve space for future EV charging, label the panel directory and the raceway termination permanently and visibly: mandatory provisions require **“EV CAPABLE”** marking at the panel and raceway (single‑family, multifamily, commercial), while voluntary residential guidance uses **“EV READY”** for panel and receptacle/cover. § 4.106.4.1.1; § 5.106.5.3.1; A4.106.8.1.1

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Last reviewed: July 6, 2026

What the code requires — 2-4 sentences

The service panel or subpanel must identify any overcurrent protective device spaces reserved for future EV charging as “EV CAPABLE” and the raceway termination serving an EV capable space must be permanently and visibly marked as “EV CAPABLE” (see § 4.106.4.1.1 and § 5.106.5.3.1). For the voluntary residential Tier guidance, the service panel circuit directory and the receptacle or blank cover designated for future EV charging must be identified as “EV READY” (see A4.106.8.1.1). These identification requirements are explicit: panel directory marking + visible permanent marking at the raceway (or receptacle/cover in voluntary measures). § 4.106.4.1.1 · § 5.106.5.3.1 · A4.106.8.1.1

The single most important rule: label the panel and the raceway/receptacle clearly and permanently—“EV CAPABLE” for required reserved spaces, and “EV READY” where the voluntary Appendix requires it—so the future EV circuit location is obvious. § 4.106.4.1.1

Requirements in detail

Who and where

  • For new one- and two‑family dwellings and townhouses with attached private garages: the service panel/subpanel circuit directory must identify reserved overcurrent protective device space(s) as “EV CAPABLE”, and the raceway termination must be permanently and visibly marked “EV CAPABLE.” § 4.106.4.1.1
  • For nonresidential and multifamily EV capable spaces, the same identification applies at the service panel/subpanel circuit directory and at the raceway termination: mark “EV CAPABLE.” § 5.106.5.3.1
  • Under the voluntary Appendix for single‑family (Tier 1/2) guidance, the panel directory shall identify the overcurrent protective device designated for future EV charging as “EV READY” and the receptacle or blank cover shall be identified “EV READY.” A4.106.8.1.1

What labeling must say (exact text)

  • Mandatory reserved panel spaces and raceway terminations: “EV CAPABLE” — required text per §§ cited. § 4.106.4.1.1; § 5.106.5.3.1
  • Voluntary Appendix (residential) panel and receptacle/cover: “EV READY”. A4.106.8.1.1

Permanence and visibility

  • Markings must be permanent and visible at the raceway termination location and on the panel circuit directory. The code does not permit ephemeral or hidden markings; the phrase used is “permanently and visibly marked.” § 4.106.4.1.1; § 5.106.5.3.1

Decision table — where to mark, what to mark, and the governing code citation

Decision dimension Required value / wording Applies to Code Reference
Panel circuit directory wording EV CAPABLE (reserved OCPD spaces) New one‑ & two‑family; multifamily/nonresidential EV capable spaces § 4.106.4.1.1 · § 5.106.5.3.1
Raceway termination marking EV CAPABLE, permanent & visible Raceways originating at service panel/subpanel serving EV capable spaces § 4.106.4.1.1 · § 5.106.5.3.1
Panel directory wording (voluntary/residential) EV READY Appendix A4 Tier 1/2 single‑family guidance A4.106.8.1.1
Receptacle / blank cover marking (voluntary) EV READY Appendix A4 residential receptacle/blank cover A4.106.8.1.1
EV ready space signage/pavement marking Follow Caltrans Traffic Operations Policy Directive 13‑01 EV ready spaces in parking areas § 4.106.4.2.5

Exceptions & special cases

  • If the local enforcing agency finds the EV infrastructure infeasible because of lack of utility power, insufficient utility supply, or extraordinary infrastructure cost impacts, some EV requirements may be excepted — but the identification language itself remains the code expectation where EV capable raceways/panel capacity are provided. See the section exceptions for infeasibility. § 5.106.5.3 (Exceptions)
  • Parking areas served by parking lifts or automated mechanical parking that cannot support charging are excepted from some EV space requirements; still check whether panel/raceway work was provided — marking is required where raceways/panel space exist. § 5.106.5.3 (Exceptions) and related parking exceptions in § 4.106.4.2 series
  • Voluntary Appendix uses the different label “EV READY” (not interchangeable with “EV CAPABLE” in mandatory text). If a jurisdiction adopts Appendix A provisions as mandatory locally, follow A4 labeling as required. A4.106.8.1.1

Common mistakes

  • Using “EV READY” and “EV CAPABLE” interchangeably. The mandatory provisions call for “EV CAPABLE” labeling; Appendix A (voluntary residential measures) uses “EV READY.” Use the term required by the applicable section. § 4.106.4.1.1; A4.106.8.1.1
  • Marking only the panel or only the raceway. The code requires the panel directory identification and the raceway termination marked (or receptacle/blank cover in Appendix A cases). § 4.106.4.1.1; § 5.106.5.3.1; A4.106.8.1.1
  • Using temporary labels (e.g., tape or removable stickers). The statute requires permanent and visible marking at the raceway termination. § 4.106.4.1.1; § 5.106.5.3.1
  • Failing to record the reserved breaker location in the panel directory (or using vague text). The directory entry should plainly identify the reserved space as “EV CAPABLE” (or “EV READY” where specified). § 4.106.4.1.1; A4.106.8.1.1

Worked example — concrete scenario

Scenario: A new 20‑space multifamily parking garage triggers the EV capable requirement in Table 5.106.5.3.1. Table guidance requires 4 EV capable spaces for 10–25 total spaces. § 5.106.5.3.1 and Table 5.106.5.3.1

What the electrical contractor must do (identification steps):

  1. At the service panel (or subpanel) serving the garage, reserve panel space and load capacity for four 208/240‑V, 40‑ampere minimum branch circuits (delivery 30 A min at the EVSE) as required by the section — then in the panel circuit directory identify those reserved spaces explicitly as “EV CAPABLE”. § 5.106.5.3.1 items 1–4
  2. Run raceways (≥ 1‑inch diameter) from the panel to locations near each of the 4 proposed EV capable parking spaces. At each raceway termination install a permanent, visible marker labeled “EV CAPABLE.” § 5.106.5.3.1 items 1 and 4
  3. Keep the panel directory legible and permanent so future electricians can install breakers into the reserved spaces knowing they are for EV charging. If this project were a single‑family home following Appendix A voluntary Tier guidance instead, the panel directory and the receptacle/blank cover would be labeled “EV READY.” A4.106.8.1.1

Result: Inspector and future installers can immediately identify reserved positions at the panel and the raceway terminations as intended for EV charging, meeting the code’s identification requirements. § 5.106.5.3.1; § 4.106.4.1.1

Related provisions

  • § 4.106.4.1.1 — Identification for one‑ & two‑family dwellings (panel directory + raceway marking).
  • § 5.106.5.3.1 — EV capable spaces (raceway size, panel capacity, and identification requirements).
  • A4.106.8.1.1 — Appendix A voluntary guidance: identification as “EV READY” for residential Tier measures.
  • § 4.106.4.2.5 — EV ready space signage / pavement markings (Caltrans policy) for parking‑area identification.
  • § 5.106.5.3.2.1 — Receptacle configurations and EVSE equipment details that relate to physical installation near marked locations.

Code references

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

  • § 5.106.5.3.1 High relevance — show source text

    1. 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. 5.106.5.3.1 EV capable spaces. [N] EV capable spaces shall be provided in accordance with Table 5.106.5.3.1 and the following requirements:

    2. Raceways complying with the California Electrical Code and no less than 1-inch (25 mm) diameter shall be provided and shall originate at a service panel or a subpanel(s) serving the area, and shall terminate in close proximity to the 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.

    3. 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.

    4. The electrical system and any on-site distribution transformers shall have sufficient capacity to supply full rated amperage at each EV capable space.

    5. 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.” Note: A parking space served by electric vehicle supply equipment or designed as a future 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 an enforcement agency. See Vehicle Code Section 22511.2 for further details.

    TABLE 5.106.5.3.1—EV CAPABLE SPACES AND EVCS Col2 Col3 Col4
    TOTAL NUMBER OF ACTUAL
    PARKING SPACES    		 NUMBER OF REQUIRED EV
    CAPABLE SPACES    		 OTHER THAN OFFICE AND
    RETAIL
    NUMBER OF REQUIRED EVCS2, 3    		 OFFICE AND RETAIL
    NUMBER OF REQUIRED EVCS2, 3
    1–9 0 0 0
    10–25 4 2 3
    26–50 8 4 6
    51–75 13 6 8
    76–100 17 8 13
    101–150 25 12 19
    151–200 35 18 26
    201 and over 20 percent of actual parking
    spaces1    		 50 percent of EV capable spaces1 75 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.
    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.
  • § 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.

    1. The electrical system and any on-site distribution transformers shall have sufficient capacity to supply full rated amperage at each EV capable space.
    2. 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.

  • § 106.8.1.1 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.

  • § 5.106.5 High relevance — show source text

    5.106.5 Electric vehicle (EV) charging.

    5.106.5.1 Reserved.

    5.106.5.2 Reserved.

    5.106.5.3 Electric vehicle (EV) charging. [N] [BSC-CG] Construction to provide electric vehicle infrastructure and facilitate electric vehicle charging shall comply with Section 5.106.5.3.1 EV capable spaces, Section 5.106.5.3.2 Electric vehicle charging stations and associated Table 5.106.5.3.1, or Section 5.106.5.3.6 Electric vehicle charging stations (EVCS)—Power allocation method and associated Table 5.106.5.3.6, and shall be provided in accordance with regulations in the California Building Code and the California Electrical Code. 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.

    2. 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. 5.106.5.3.1 EV capable spaces. [N] EV capable spaces shall be provided in accordance with Table 5.106.5.3.1 and the following requirements:

    3. Raceways complying with the California Electrical Code and no less than 1-inch (25 mm) diameter shall be provided and shall originate at a service panel or a subpanel(s) serving the area, and shall terminate in close proximity to the 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.

    4. 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.

    5. The electrical system and any on-site distribution transformers shall have sufficient capacity to supply full rated amperage at each EV capable space.

    6. 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.” Note: A parking space served by electric vehicle supply equipment or designed as a future 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 an enforcement agency. See Vehicle Code Section 22511.2 for further details.

  • § 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.

    2025 CALIFORNIA GREEN BUILDING STANDARDS CODE 4-5

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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.

  • § 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.
  • § 5.106.5.6 High relevance — show source text

    000 to 256,000|1 or 2|200| |Warehouse|20,000 to 256,000|3 or Greater|400| |Warehouse|Greater than 256,000|1 or Greater|400|

    5.106.5.6 Electric vehicle (EV) charging at public schools and community colleges. [DSA-SS] Electric vehicle infrastructure and electric vehicle charging stations shall comply with Section 5.106.5.6 and shall be provided in accordance with regulations in the California Building Code and the California Electrical Code.

    Exceptions:

    1. On a case-by-case basis where compliance with this section has been demonstrated to be not feasible based upon one of the following conditions, and with concurrence by the Division of the State Architect (DSA), compliance with Section 5.106.5.6 shall not be required. a. Where there is no local utility power supply. b. Where the local utility is unable to supply adequate power. c. The installation of EVCS is impracticable.
    2. Parking spaces accessible only by automated mechanical car parking systems are not required to comply with Section 5.106.5.6.

    5.106.5.6.1 EV capable spaces. EV capable spaces shall be provided in accordance with Table 5.106.5.6.1 and the following requirements:

    1. Raceways complying with the California Electrical Code and no less than 1-inch (25 mm) diameter shall be provided and shall originate at a service panel or a subpanel(s) serving the area and shall terminate in close proximity to the

    5-8 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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    NONRESIDENTIAL MANDATORY MEASURES

    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.

    1. The electrical system and any on-site distribution transformers shall have sufficient capacity to supply full rated amperage at each EV capable space.
    2. 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.
  • § 106.8 High relevance — show source text
    1. Use open grid pavement system or pervious or permeable pavement system.
    2. Locate 50 percent of parking underground or use multilevel parking.
    3. 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

    APPENDIX A4-6 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

    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.

  • § 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
  • § 6.6 High relevance — show source text

    6|Total required kVA = P× .30× 6.6
    Where P = Parking spaces in facility|Total required kVA = P× .30× 6.6
    Where P = Parking spaces in facility| |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 67 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 67 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 67 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 67 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.|

    A5.106.5.3.3 Tier 2. Comply with Section 5.106.5.3.1 EV capable spaces, Section 5.106.5.3.2 Electric vehicle charging stations and associated Table A5.106.5.3.3, or Section A5.106.5.3.4 Electric vehicle charging stations (EVCS)—power allocation method and associated Table A5.106.5.3.4.

    Refer to Section 5.106.5.3.2 for the permitted use of Level 2 or Direct Current Fast Charger (DCFC) to create EVCS. Refer to Section 5.106.3.2.1 for the allowed use of DCFC to comply with both EV capable spaces and Level 2 EVSE. Refer to Section 5.106.5.3.3 for the allowed use of Automatic Load Management System (ALMS).

  • § 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.|

    2025 CALIFORNIA GREEN BUILDING STANDARDS CODE 5-5

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

    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.

  • § 5.106.5.3.1 High relevance — show source text

    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.|

    A5.106.6 Parking capacity. Design parking capacity to meet but not exceed minimum local zoning requirements.

    A5.106.6.1 Reduce parking capacity. With the approval of the enforcement authority, employ strategies to reduce on-site parking area by

    1. Use of on street parking or compact spaces, illustrated on the site plan or
    2. Implementation and documentation of programs that encourage occupants to carpool, ride share or use alternate transportation.

    Note: Strategies for programs may be obtained from local TMAs.

    A5.106.7 Exterior wall shading. Meet requirements in the current edition of the California Energy Code and comply with either Section A5.106.7.1 or A5.106.7.2 for wall surfaces. If using vegetative shade, plant species documented to reach desired coverage within 5 years of building occupancy.

    A5.106.7.1 Fenestration. Provide vegetative or man-made shading devices for all fenestration on east-, south- and west-facing walls.

    A5.106.7.1.1 East and west walls. Shading devices shall have 30-percent coverage to a height of 20 feet or to the top of the exterior wall, whichever is less. Calculate shade coverage on the summer solstice at 10 AM for east-facing walls and at 3 PM for west-facing walls.

    A5.106.7.1.2 South walls. Shading devices shall have 60-percent coverage to a height of 20 feet or to the top of the exterior wall, whichever is less.

    A5.106.7.2 Opaque wall areas. Use wall surfacing with minimum SRI 25 (aged), for 75 percent of opaque wall areas.

    Exception: Use of vegetated shade in Wildland-Urban Interface Areas as defined in Chapter 7A (Materials and Construction Methods for Exterior Wildfire Exposure) of the California Building Code shall meet the requirements of that chapter.

    Note: If not available from the manufacturer, aged SRI value calculations may be found at the California Energy Commis-sion’s web site at www.energy.ca.gov.

    A5.106.8 Reserved.

    A5.106.9 Reserved.

    A5.106.10 Reserved.

    A5.106.11 Reduction of heat island effect. Reduce heat islands by requiring Section A5.106.11.1 Hardscape alternatives, Section A5.106.11.2 Cool roofs, or Section A5.106.11.3 Shade trees.

Frequently asked questions

Can I mark reserved breaker spaces with removable labels?

No. The code requires the raceway termination location and the panel directory to be permanently and visibly marked as “EV CAPABLE” (or “EV READY” where Appendix A applies). § 4.106.4.1.1; § 5.106.5.3.1

If I install an actual 40 A EV branch circuit now, do I still need to label anything “EV CAPABLE”?

If you install the active branch circuit and EVSE, the parking space counts as an EV charging station (EVCS) and the EV capable‑space counting rules change; however, the code’s identification requirement applies where reserved spaces or raceways are provided. If circuits and equipment are installed, document accordingly. See § 5.106.5.3.1 and related tables.

Is “EV READY” ever acceptable in place of “EV CAPABLE”?

Only where the Appendix A voluntary residential guidance is the controlling requirement (or if a local jurisdiction has adopted Appendix language as mandatory). Otherwise use the mandatory term “EV CAPABLE” for reserved panel spaces and raceway terminations. A4.106.8.1.1; § 4.106.4.1.1

Where should pavement or signage marking be used?

Parking space signage or pavement markings identifying an EV ready space must comply with Caltrans Traffic Operations Policy Directive 13‑01 (or successor). See § 4.106.4.2.5.

Who enforces the marking requirement?

Local enforcing agencies verify compliance at plan check and inspection; if infeasibility exceptions are claimed (utility limits, parking lifts, etc.), those exceptions are processed by the enforcing agency per § 5.106.5.3.

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