Title 24 · California Energy Code

When can an ALMS be used and what are the minimum delivery requirements per controlled EVSE?

Q: Can ALMS reduce the required dedicated branch circuit size for an EV space?

No. The residential rule still requires a minimum 40 ampere branch circuit for spaces served by ALMS, and installed chargers must be not less than 30 amperes ; ALMS reduces required panel load capacity but does not change those minimum circuit/charger ratings in § 4.106.4.2.2 .

Q: Is the 3.3 kW requirement per EVSE or per vehicle?

The code states the 3.3 kW minimum is per EVSE while charging multiple EVs simultaneously (i.e., each EVSE controlled by ALMS must be able to deliver 3.3 kW in those conditions) — § 5.106.5.3.3 .

ALMS is allowed under the California code but does not relieve per‑EVSE minimum delivery: every EVSE controlled by ALMS must give **30 A** when charging one vehicle and **3.3 kW** to each EVSE during simultaneous charging. For multifamily residential projects the system must be sized to deliver 3.3 kW per EVCS, with **40 A** branch circuits and installed chargers of **≥ 30 A**. **§ 5.106.5.3.3** and **§ 4.106.4.2.2** spell out these minima.

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Last reviewed: July 6, 2026

What the code requires — 2–4 sentences

An Automatic Load Management System (ALMS) is explicitly permitted to serve electric vehicle charging stations (EVCS). When ALMS is used, the required electrical load capacity for an EVCS may be reduced, but each EVSE controlled by the ALMS must (1) deliver a minimum 30 amperes to an EV when charging a single vehicle and (2) deliver a minimum 3.3 kW to each EVSE while charging multiple vehicles simultaneously — see § 5.106.5.3.3.

For multifamily residential applications the code repeats the ALMS allowance and adds circuit and charger sizing minima: the electrical system must be able to deliver at least 3.3 kW simultaneously to each EVCS served by the ALMS, branch circuits must be minimum 40 amperes, and installed EV chargers must be not less than 30 amperes — see § 4.106.4.2.2.

The single most important rule: if you use ALMS you can reduce per‑space panel capacity requirements, but each ALMS‑controlled EVSE must still guarantee 30 A for one‑vehicle charging and 3.3 kW per EVSE when multiple vehicles charge simultaneously.

Requirements in detail

Basic permissive statement

ALMS permitted for EVCS — ALMS is allowed as an alternative means of managing loads for EV charging and may be used to reduce the required electrical load capacity per EVCS. § 5.106.5.3.3.

Minimum per‑EVSE delivery requirements (decision table)

Decision dimension	Minimum value (what the EVSE must provide)	Code reference
Single‑vehicle charging delivery	30 amperes to an EV when charging one vehicle	§ 5.106.5.3.3
Simultaneous multi‑vehicle delivery (per EVSE)	3.3 kW delivered to each EVSE while charging multiple EVs at once	§ 5.106.5.3.3
Residential ALMS minimum simultaneous power (system)	System shall have capacity to deliver at least 3.3 kW simultaneously to each EVCS served by the ALMS	§ 4.106.4.2.2 (residential)
Residential branch circuit minimum	40 amperes (branch circuit minimum capacity)	§ 4.106.4.2.2 (residential)
Residential installed charger minimum	Installed EV chargers not less than 30 amperes	§ 4.106.4.2.2 (residential)

Notes:

The nonresidential ALMS rule in § 5.106.5.3.3 contains the same 30 A / 3.3 kW minima for controlled EVSEs.
Residential Section 4.106.4.2.2 explicitly cross‑states the ALMS allowance and the branch circuit / charger minima for multifamily and similar residential contexts.

How these minima are applied (short bullets)

If an EVSE is controlled by an ALMS and only one vehicle is charging at that EVSE, the system must be able to provide 30 A to that vehicle. § 5.106.5.3.3.
If multiple vehicles are charging simultaneously under ALMS control, each controlled EVSE must deliver at least 3.3 kW to its connected vehicle(s) (this is a per‑EVSE simultaneous minimum). § 5.106.5.3.3.
For residential (multifamily) projects using ALMS, the overall electrical system and on‑site transformers must have capacity to meet the 3.3 kW per EVCS simultaneous requirement; branch circuits must be sized at 40 A minimum and the installed chargers ≥ 30 A. § 4.106.4.2.2.

Exceptions & special cases

The residential EVCS dimension/location exception: EVCS serving public accommodations, public housing, motels, and hotels are not required to comply with Section 4.106.4.2.2; see the exception text in § 4.106.4.2.2.1.
The code includes other EVCS compliance paths (power allocation method, DC fast chargers, multiple connectors, etc.) elsewhere in Chapter 5; where those approaches are used the ALMS minima still apply to EVSEs actually controlled by an ALMS per § 5.106.5.3.3.
The code allows EVSEs with multiple connectors if the accumulative required electrical load capacity is provided to that EVSE (see related EVCS multi‑connector language in Chapter 5). If you plan multi‑connector EVSE, confirm the cumulative supply meets the per‑space requirements.

If you need authority or local approval language (e.g., whether a particular ALMS product needs to be listed/certified or how the enforcing agency reviews ALMS control strategies), that detail is not provided in the retrieved sections and will need to be confirmed with the local enforcing authority or the California Electrical Code. The sections above state the minima but do not include product listing or AHJ approval procedures.

Common mistakes

Confusing the 30 A installed charger minimum (residential charger rating) with the 40 A branch circuit minimum — the code requires both in the residential rule; they are different requirements: charger rating (≥30 A) vs branch circuit capacity (≥40 A). § 4.106.4.2.2.
Assuming ALMS lets you reduce delivered power below 3.3 kW per EVSE during simultaneous charging — it does not. The 3.3 kW per EVSE simultaneous minimum is explicit. § 5.106.5.3.3.
Forgetting to size the overall electrical service or on‑site transformers to support simultaneous 3.3 kW per EVCS when ALMS is used. The residential text specifically requires sufficient system capacity. § 4.106.4.2.2.
Overlooking exceptions (for public accommodations, etc.) — those spaces may follow other rules. § 4.106.4.2.2.1 (exception).

Worked example — concrete scenario

Scenario: A multifamily building installs an ALMS that will control 10 Level 2 EVCS available for residents (each EVCS is an EVSE controlled by the ALMS).

Code requirements to check:

Per EVSE simultaneous minimum: 3.3 kW per EVCS (so if all 10 charge simultaneously the system must supply 10 × 3.3 kW = 33 kW total available to those EVCS). § 5.106.5.3.3 and § 4.106.4.2.2.
Per EVSE single‑vehicle delivery: each EVSE must be capable of 30 A when charging one vehicle. § 5.106.5.3.3.
Branch circuits (residential): each parking space served by a charger must have a 40 A branch circuit minimum. § 4.106.4.2.2.
Installed chargers must be rated not less than 30 A per § 4.106.4.2.2.

What to document for plan review:

ALMS control strategy (how the ALMS allocates available power and ensures the 30 A single‑vehicle and 3.3 kW simultaneous minima per EVSE). § 5.106.5.3.3.
Service capacity (transformer/panel) calculations showing at least 33 kW available for the 10 controlled EVCS under simultaneous charging, OR a demonstration the ALMS will prevent aggregate demand from dropping below the per‑EVSE minima. § 4.106.4.2.2.

(If you want, I can lay out a sample one‑line service and panel calculation for this scenario — but the code text itself only prescribes the per‑EVSE minima and the requirement that the system have sufficient capacity; it does not give a one‑size‑fits‑all service sizing formula in these sections.)

Related provisions

§ 5.106.5.3.1 — EV capable spaces and the base electrical raceway / branch circuit and delivery requirements for EV capable spaces.
§ 5.106.5.3.2 — EV charger / EVSE equipment, connectors and receptacle configuration (Level 2 and DCFC contexts).
§ 5.106.5.6.2.2 — Multi‑connector EVSE cumulative load language (applies where EVSE serves multiple vehicles).
§ 4.106.4.2.2.1.1 — EVCS space dimensions and location requirements for residential EVCS (where chargers are installed).

(If you need the full text of any of these related sections or their Table references for plan sets, I can extract and format the exact lines from the code text for inclusion in notes or construction documents.)

Code references

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

§ 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.
§ 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).

§ 5.106.5.3.3 High relevance — show source text

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.

Power allocation method shall include the following:

Use any kVA combination of EV capable spaces, low power Level 2, Level 2 or DCFC EVSEs.
At least one Level 2 EVSE shall be provided.

TABLE 5.106.5.3.6-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 CAPABLE4, 5, LOW POWER LEVEL 2, LEVEL 21, 2, OR DCFC
1–9	0	0	0
10–25	26.4	26.4	26.4
26–50	52.8	52.8	52.8
51–75	85.8	85.8	85.8
76–100	112.2	112.2	112.2
101–150	165	165	165
151–200	231	231	231
201 and over	20 percent of actual parking spaces × 6.6	Total required kVA = P × .20 × 6.6 Where P = Parking spaces in facility	Total required kVA = P × .20 × 6.6 Where P = Parking spaces in facility
1. Level 2 EVSE @ 6.6 kVA minimum. 2.

§ 6.6 High relevance — show source text
6|Total required kVA = P× .45× 6.6
Where P = Parking spaces in facility|Total required kVA = P× .45× 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 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.|

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.
§ 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.

§ 5.106.5.6.2 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.|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.

5.106.5.6.2.3 Use of automatic load management systems (ALMS). ALMS shall be permitted for EVCS installed in accordance with Section 5.106.5.6.2. When ALMS is installed, the required electrical load capacity specified in Section 5.106.5.6.1 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.

5.106.5.6.3 EVCS alternative compliance. In lieu of compliance with Section 5.106.5.6.2, EVCS shall be provided with Level 1, low power Level 2, or Level 2, or any combination of Level 1, low power Level 2 or Level 2 EVSE such that the total power supplied by the combination of EVSE meets the minimum power indicated in Table 5.106.5.6.3, based on the total number of actual parking spaces in each parking facility.

TABLE 5.106.5.6.3	Col2
NUMBER OF PARKING SPACES IN A PARKING FACILITY	MINIMUM TOTAL POWER (KVA) REQUIRED FOR EVCS
0–9	0
10–25	7
26–50	14
51–75	20
76–100	27
101–150	40
151–200	60
201 and over	Total required KVA = P × .05 × 6.6 Where P = Parking spaces in facility

2025 CALIFORNIA GREEN BUILDING STANDARDS CODE 5-9

§ 5.106.5.3.1 High relevance — show source text

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).

TABLE A5.106.5.3.3—TIER 2 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	3	2	2
10–25	8	4	6
26–50	17	9	13
51–75	28	14	21
76–100	40	20	30
101–150	57	29	43
151–200	79	40	59
201 and over	45 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.

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

§ 5.106.5.3.1 High relevance — show source text

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

§ 106.5.2 High relevance — show source text

a. California DriveClean.

b. California Air Resources Board.

c. US EPA fuel economy regulations and standards. d. DMV Registration Operations. 2. Purchasing policy and refueling sites for zero-emitting vehicles for state employees use can be found at the Department of General Services.

A5.106.5.2 Reserved.

A5.106.5.3 Electric vehicle (EV) charging. [N] Construction shall comply with Section A5.106.5.3.1 Tier 1 or A5.106.5.3.3 Tier 2, and in accordance with regulations in the California Building Code and the California Electrical Code. A5.106.5.3.1 Tier 1. Comply with Section 5.106.5.3.1 EV capable spaces, Section 5.106.5.3.2 Electric vehicle charging stations and associated Table A5.106.5.3.1, or comply with Section A5.106.5.3.2 Tier 1 Electric vehicle charging stations (EVCS)—power allocation method and associated Table A5.106.5.3.2. 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).

TABLE A5.106.5.3.1—TIER 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	2	1	2
10–25	5	3	4
26–50	11	6	8
51–75	19	10	14
76–100	26	13	20
101–150	38	19	29
151–200	53	27	40
201 and over	30 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. 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.

§ 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.
§ 3.3 High relevance — show source text
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.

4.106.4.4.1 Short-term bicycle parking for multifamily buildings, hotels and motels. Provide on-site bicycle parking at a ratio of one parking space for every 10,000 square feet, but not less than two spaces. Short-term bicycle parking shall be located within 200 feet of building entrances, and readily visible to passers-by. Acceptable parking facilities shall be conveniently accessed from the street and may include, but not be limited to:
1. Permanently anchored bicycle parking devices, racks, or lockers in an unsheltered, open area.
2. Covered or uncovered enclosures with permanently anchored bicycle parking devices or racks.
4.106.4.4.2 Long-term bicycle parking for multifamily buildings. Provide on-site bicycle parking at a ratio of one parking space for every two dwelling units. Acceptable parking facilities shall be conveniently accessed from the street and may include, but not be limited to:
1. Covered, lockable enclosures with permanently anchored bicycle parking devices or racks.
2. Lockable bicycle storage rooms with permanently anchored bicycle parking devices or racks.
3. Lockable, weatherproof, permanently anchored bicycle lockers.
4.106.4.4.3 Long-term bicycle parking for hotel and motel buildings. Provide one on-site long-term bicycle parking space for every 25,000 square feet, but not less than two. Acceptable parking facilities shall be conveniently accessed from the street and may include, but not be limited to:
1. Covered, lockable enclosures with permanently anchored bicycle parking devices or racks.
2. Lockable bicycle storage rooms with permanently anchored bicycle parking devices or racks.
3. Lockable, weatherproof, permanently anchored bicycle lockers.
4-6 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

Frequently asked questions

Can ALMS reduce the required dedicated branch circuit size for an EV space?

No. The residential rule still requires a minimum 40 ampere branch circuit for spaces served by ALMS, and installed chargers must be not less than 30 amperes; ALMS reduces required panel load capacity but does not change those minimum circuit/charger ratings in § 4.106.4.2.2.

Is the 3.3 kW requirement per EVSE or per vehicle?

The code states the 3.3 kW minimum is per EVSE while charging multiple EVs simultaneously (i.e., each EVSE controlled by ALMS must be able to deliver 3.3 kW in those conditions) — § 5.106.5.3.3.

Do public hotels and motels have to follow the residential ALMS minima?

EVCS serving public accommodations, public housing, motels, and hotels are exempt from Section 4.106.4.2.2; different requirements may apply (see the exception in § 4.106.4.2.2.1).

If an EVSE has multiple connectors, does ALMS change how you count capacity?

Multi‑connector EVSE are allowed if their supplied electrical capacity meets the accumulative required load; ALMS can manage distribution but each controlled EVSE must still meet the minima in § 5.106.5.3.3 and any multi‑connector cumulative load requirements elsewhere in Chapter 5.

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