CRC · California Residential Code

EV charging readiness and technical requirements (A4.106 series)

For new multifamily buildings, hotels and motels the CRC Appendix requires that a large share of parking be “EV‑ready” — **60% receptacles** and **40% chargers** for hotels/motels (with specific multifamily rules) — and that those spaces be built now with the raceway, reserved panel capacity and minimum stall dimensions specified by the 4.106 construction sections referenced in **§ A4.106.8.2.2** so future EV chargers can be installed without demolition. file

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Last reviewed: July 6, 2026

What the code requires — 2-4 sentences

New multifamily dwellings, hotels and motels must provide EV-ready parking per § A4.106.8.2 and those EV spaces must be designed and built to the technical construction requirements in § A4.106.8.2.2. In plain English: hotels/motels must equip a portion of parking with low‑power Level 2 receptacles and a portion with Level 2 EV chargers, and the physical spaces, raceways, panel capacity and markings must comply with the referenced § 4.106 construction requirements. The controlling elective/residential Appendix provisions are § A4.106.8.2 and § A4.106.8.2.2.

The single most important rule: design and reserve the physical raceway, panel capacity and space dimensions now — meet the percentages in § A4.106.8.2 and construct the EV spaces to the technical rules called out in § A4.106.8.2.2 so future chargers can be installed without demolition.

Requirements in detail

High‑level required items (Tier 1 summary from § A4.106.8.2.1 and the technical cross‑references in § A4.106.8.2.2):

  • Provide EV ready parking with receptacles and/or EV ready parking with EV chargers in the quantities specified (percentages below) for hotels/motels and multifamily; see § A4.106.8.2.1.
  • Construct the EV spaces to comply with the detailed construction/electrical/space dimension sections listed in § A4.106.8.2.2 (that is, 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). If a particular 4.106 subsection text is not present in the project documents you have, refer to the CRC text cited here for the authoritative language.

Decision‑relevant dimensions and values (quick reference)

Requirement / dimension Value or threshold Code Reference
Percent of parking with low‑power Level 2 receptacles (hotels & motels) 60% of total parking § A4.106.8.2.1
Percent of parking with Level 2 EV chargers (hotels & motels) 40% of total parking § A4.106.8.2.1
Multifamily (unassigned/common use): percent with Level 2 chargers 40% of total parking (in addition to receptacle requirement) § A4.106.8.2.1
Raceways for receptacles / EV capable spaces Minimum trade size 1 (nom. 1‑inch ID) where required; raceway sized to permit a dedicated 208/240‑V, 40‑A branch circuit § 4.106.4.1 and cross‑references listed in § A4.106.8.2.2 file
Minimum dedicated branch circuit rating reserved 40 amperes minimum (208/240 V) per EV capable space § 4.106.4.1 and related EV capable requirements referenced by § A4.106.8.2.2
Minimum delivered current to installed EVSE 30 amperes minimum delivery to an installed EVSE (where EV chargers/EVCS are installed) § 4.106.4.2.2.1.1 / related EVCS rules referenced by § A4.106.8.2.2
EVCS stall minimum length 18 feet (5,486 mm) § 4.106.4.2.2.1.1
EVCS stall minimum width 9 feet (2,743 mm) § 4.106.4.2.2.1.1
Aisle requirement for some EVCS stalls 1 in 25 stalls (min) must have an 8‑ft aisle, or a 5‑ft aisle allowed if stall width is 12 ft; slope ≤ 1:48 § 4.106.4.2.2.1.1 (dimensions & slope)
Panel / directory labeling Reserved breaker space(s) or device for EV must be identified as “EV READY” or “EV CAPABLE” (as applicable) § A4.106.8.1.1 and related EV capable notes referenced in § A4.106.8.2.2 file

Notes on the table: the Appendix A provisions in § A4.106.8.2 explicitly require the EV spaces to be built to the technical rules contained in the listed 4.106 sections; for the specific electrical sizing and space dimensions use those 4.106 sections as the technical detail. file

What "low‑power Level 2 receptacle" and "Level 2 EV charger" mean here

  • Low‑power Level 2 receptacle: a 208/240 V receptacle provided to allow future Level 2 charging (raceway sized or conductors sized for a 40‑A branch circuit). The Appendix allows substitution of installed Level 2 chargers in some cases for hotels/motels. § A4.106.8.2.1 explains the percentages and the allowance.
  • Level 2 EV charger / EVCS (electric vehicle charging station): installed EVSE delivering Level 2 charging and installed in accordance with the electrical/space requirements called out in the 4.106 sections referenced by § A4.106.8.2.2.

Exceptions & special cases

  • Parking areas served by parking lifts or automated mechanical systems, or otherwise incapable of supporting EV charging, are excepted from some of the EV receptacle/charger requirements. See the exception language in § A4.106.8.2.1.
  • Hotels and motels may substitute installed Level 2 EV chargers for some or all of the required receptacles (this substitution is explicitly allowed in § A4.106.8.2.1).
  • The Appendix requires that the EV spaces be built “in accordance with” specific 4.106 sections (§ A4.106.8.2.2). If a project needs alternate methods or local variations, those must be addressed with the enforcing agency and any applicable exceptions under the referenced 4.106 sections.

If you need a provision that is identified by Section 4.106.4.2.2.1.2 (called out in § A4.106.8.2.2), note that the project excerpt I reviewed includes the referenced cross‑section numbers but does not provide the full text of every 4.106 sub‑subsection in-line; consult the CRC § 4.106 text for the authoritative clause where that specific subsection is required. file

Common mistakes

  • Treating “EV ready”/“EV capable” requirements as optional design guidance — the Appendix requires the percentages and technical follow‑through spelled out in § A4.106.8.2 and the 4.106 cross‑refs.
  • Failing to size the raceway to accept a 40‑A, 208/240‑V branch circuit (trade size 1 or conductors sized to accommodate the branch circuit) — that omission forces costly retrofit. See § 4.106.4.1 and the raceway requirement referenced by § A4.106.8.2.2. file
  • Not reserving panel space or failing to label the reserved breaker as “EV READY”/“EV CAPABLE”; labeling is required in the applicable A4/4.106 sections. file
  • Installing small receptacles or incorrect configurations — use the 208/240‑V configurations called out in the 4.106/5.106 sections (e.g., NEMA types when specified) rather than a 120‑V general‑purpose receptacle. The Appendix references 208/240‑V Level 2 receptacle configurations in the body of the CRC provisions. file

Worked example — hotel with 100 parking spaces

Scenario: New hotel, 100 total parking spaces.

  1. Receptacles (Tier 1 requirement): 60% of 100 = 60 spaces must be equipped with low‑power Level 2 receptacles (or substituted Level 2 chargers where allowed). Reference: § A4.106.8.2.1.
  2. EV chargers (Tier 1 EVCS): 40% of 100 = 40 spaces must be equipped with Level 2 EV chargers (this can overlap where substitution is used per the exception language). Reference: § A4.106.8.2.1.
  3. Raceway & electrical capacity: For each of the 60 receptacle spaces the listed raceway (or conductors) must be sized to allow installation of a dedicated 208/240‑V, 40‑A branch circuit (trade‑size 1 raceway where raceway is required). Reserve panel space and show the reserved overcurrent device(s) as EV CAPABLE or EV READY per the identification rules. References: § A4.106.8.2.1 and the cross‑references in § A4.106.8.2.2 to the 4.106 sections. file
  4. Space dimensions for installed EVCS (if installing chargers now): design EVCS stalls to minimum 18 ft long × 9 ft wide, ensure required aisle width for at least 1 in 25 stalls, and keep slope ≤ 1:48 — see § 4.106.4.2.2.1.1 as required by § A4.106.8.2.2.

Practical design note: size the service and transformer capacity to support the intended number of simultaneous Level 2 chargers (the Appendix cross‑references the 4.106 series technical rules for load capacity details). If you intend to stagger charges or use ALMS, consult the specific 4.106/5.106 ALMS language for permitted reductions in capacity (that language appears in related CRC sections). file

Related provisions (useful CRC sections to read)

  • § A4.106.8.2 — EV requirements for new multifamily dwellings, hotels and motels (Tier 1 items & percentages).
  • § A4.106.8.2.2 — Technical requirements: requires conformance to the listed 4.106 sections for construction and design.
  • § A4.106.8.1 and § A4.106.8.1.1 — EV readiness for one‑ and two‑family dwellings (dedicated 40‑A branch circuit, identification). file
  • § 4.106.4.1 — Raceway and raceway sizing requirements for single‑family / attached garages and the 40‑A branch circuit sizing (cross‑referenced by A4.106.8.2.2).
  • § 4.106.4.2.2.1.1 — EVCS stall dimensions, aisle widths, slope and accessible‑route considerations (cross‑referenced by A4.106.8.2.2).
  • § 4.106.4.2 and related 4.106 subsections — multifamily electrical and EVCS installation details (receptacle configurations, branch circuit requirements, labeling). file

Code references

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

  • CRC § 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.

  • CRC § 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).

  • CRC § 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.

  • CRC § 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.

  • CRC § 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

    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.

    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.

  • CRC § 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.

  • CRC § 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.

  • CRC § 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

    1. 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.

  • CRC § 4-4 High relevance — show source text

    4-4 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

    RESIDENTIAL MANDATORY MEASURES

    1. 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.

    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.

  • CRC § 106.6 High relevance — show source text

    106.6** 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_, Chapters 15 and
    16.||||||| |A4.106.7 Reduce nonroof heat islands for 50 percent of sidewalks,
    patios, driveways or other paved areas by using one or more of the
    methods listed.||||||| |A4.106.8.1 Tier 1 and Tier 2 for one- and two-family dwellings and
    townhouses with attached private garages.
    Install a dedicated 208/240-volt branch circuit, including an
    overcurrent protective device rated at 40 amperes minimum per
    dwelling unit.||2|2||||

    APPENDIX A4-24 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

    APPENDIX A4 — RESIDENTIAL VOLUNTARY MEASURES

    SECTION A4.602—RESIDENTIAL OCCUPANCIES APPLICATION CHECKLIST—continued

    FEATURE OR MEASURE LEVELS
    APPLICANT TO SELECT ELECTIVE MEASURES    		 Col3 Col4 VERIFICATIONS
    ENFORCING AGENCY TO SPECIFY
    VERIFICATION METHOD    		 Col6 Col7
    FEATURE OR MEASURE Mandatory Prerequisites and electives1 Prerequisites and electives1 Enforcing
    Agency

    All    		 Installer or
    Designer

    All    		 Third
    party

    All
    FEATURE OR MEASURE Mandatory Tier 1 Tier 2 Tier 2 Tier 2 Tier 2
    A4.106.8.2.1Provide capability for electric vehicle charging in
    new multifamily dwellings, hotels and motels, as specified.
    Tier 1. 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.
  • CRC § 106.5.3.2 High relevance — show source text

    Power allocation method shall include the following:

    1. Use any kVA combination of EV capable spaces, low power Level 2, Level 2 or DCFC EVSEs.
    2. At least one Level 2 EVSE shall be provided.
    TABLE A5.106.5.3.2—TIER 1 EVCS—POWER ALLOCATION METHOD Col2 Col3 Col4
    TOTAL NUMBER OF
    ACTUAL PARKING SPACES    		 MINIMUM TOTAL kVA
    @ 6.6 kVA    		 OTHER THAN OFFICE AND RETAIL
    TOTAL kVA REQUIRED
    IN ANY COMBINATION OF EV
    CAPABLE3, 4, LOW POWER LEVEL 2
    LEVEL 21, 2, OR DCFC    		 OFFICE AND RETAIL
    TOTAL kVA REQUIRED
    IN ANY COMBINATION OF EV
    CAPABLE3, 4, LOW POWER LEVEL 2
    LEVEL 21, 2, OR DCFC
    1–9 13.2 13.2 13.2
    10–25 33 33 33
    26–50 72.6 72.6 72.6
    51–75 125.4 125.4 125.4
    76–100 171.6 171.6 171.6
    101–150 250.8 250.8 250.8
    151–200 349.8 349.8 349.8
    201 and over 30 percent of
    actual parking spaces× 6.6    		 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.
  • CRC § 5.106.5.5 High relevance — show source text

    Install EVCS at all existing EV capable spaces, utilizing the existing allocated power and infrastructure for the total number of actual parking spaces being added or altered, prior to adding any new EV capable spaces. If the area being added or altered exceeds the existing EV capable capacity, allocated power and infrastructure, provide additional EV charging as needed to comply with this section.

    5.106.5.5 Electric vehicle (EV) charging: medium-duty and heavy-duty. [N] [BSG-CG] Construction shall comply with Section 5.106.5.5.1 to facilitate future installation of electric vehicle supply equipment (EVSE). Construction for warehouses, grocery stores and retail stores, office buildings, and manufacturing facilities with planned off-street loading spaces shall also comply with Section 5.106.5.5.1 for future installation of medium- and heavy-duty EVSE.

    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 enforcing 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.

    2025 CALIFORNIA GREEN BUILDING STANDARDS CODE 5-7

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

    NONRESIDENTIAL MANDATORY MEASURES

    When EVSE(s) is/are installed, it shall be in accordance with the California Building Code, the California Electrical Code and as follows:

    5.106.5.5.1 Electric vehicle charging readiness requirements for warehouses, grocery stores, office buildings, and manufacturing facilities and retail stores with planned off-street loading spaces. [N] In order to avoid future demolition when adding EV supply and distribution equipment, spare raceway(s) or busway(s) and adequate capacity for transformer(s), service panel(s) or subpanel(s) shall be installed at the time of construction in accordance with the California Electrical Code . Construction plans and specifications shall include, but are not limited to, the following:

    1. The transformer, main service equipment and subpanels shall meet the minimum power requirement in Table 5.106.5.5.1 to accommodate the dedicated branch circuits for the future installation of EVSE.

    2. The construction documents shall indicate one or more location(s) convenient to the planned off-street loading space(s) reserved for medium- and heavy-duty ZEV charging cabinets and charging dispensers, and a pathway reserved for routing of conduit from the termination of the raceway(s) or busway(s) to the charging cabinet(s) and dispenser(s), as shown in Table 5.106.5.5.1.

    3. Raceway(s) or busway(s) originating at a main service panel or a subpanel(s) serving the area where potential future medium- and heavy-duty EVSE will be located and shall terminate in close proximity to the potential future location of the charging equipment for medium- and heavy-duty vehicles.

    4. The raceway(s) or busway(s) shall be of sufficient size to carry the minimum additional system load to the future location of the charging for medium- and heavy-duty ZEVs as shown in Table 5.106.5.5.1.

Frequently asked questions

Do the Appendix A requirements in § A4.106.8.2 apply to existing buildings?

No. § A4.106 is an Appendix with voluntary/elective residential measures for new construction; the specific language of § A4.106.8.2 addresses new multifamily dwellings, hotels and motels. Consult local codes for retrofit/alteration requirements.

Can a hotel substitute installed Level 2 chargers for the required receptacles?

Yes. Hotels and motels may substitute Level 2 EV chargers for some or all of the required EV charging receptacles, per § A4.106.8.2.1.

How big must the raceway be for future EV branch circuits?

Where raceway is required, it must be sized no less than trade size 1 (nominal 1‑inch inside diameter) or otherwise sized so conductors can accommodate a 208/240‑V, 40‑A branch circuit as required by the referenced 4.106 sections.

Must the panel show reserved breaker spaces for EV?

Yes. The panel or subpanel circuit directory shall identify reserved overcurrent protective device space(s) as “EV CAPABLE” or “EV READY” in accordance with the CRC cross‑references cited by § A4.106.8.2.2. file

If a parking area uses parking lifts, do I still need to provide receptacles?

No. Areas served by parking lifts or parking configurations incapable of supporting EV charging are an explicit exception to some of the requirements in § A4.106.8.2.1.

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