Parking and Highway Improvement (C-32) · Lesson 6 of 7

EV Charging Stalls: Required Counts and Accessible Stalls

"EV Charging Stalls: Required Counts and Accessible Stalls" is lesson 6 of 7 in the Parking and Highway Improvement (C-32) Learning Hub. It opens with "Two Codes, Two Counts" and works through 5 short steps, then a worked example you can check yourself against.

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Steps in this lesson

  1. Two Codes, Two Counts
  2. Read CALGreen Table 5.106.5.3.1
  3. What EV Capable Means for the Installer
  4. Accessible EVCS: Table 11B-228.3.2.1
  5. Stall Size and Paint Under 11B-812

The worked example in the course applies this lesson to a realistic job in 5 steps, from "EV capable spaces" through "Accessible EVCS".

What you'll be able to do

  • Explain the main idea of "EV Charging Stalls: Required Counts and Accessible Stalls" in plain language you can use on the exam.
  • Apply this step with confidence: "What EV Capable Means for the Installer".
  • Apply this step with confidence: "Accessible EVCS: Table 11B-228.3.2.1".
  • Apply this step with confidence: "Stall Size and Paint Under 11B-812".
  • Test yourself on the worked example and the quick-check quiz inside the classroom.
EV Charging Stalls: 250-Space Retail LotCALGreen TABLE 5.106.5.3.1ActualspacesEVcapableEVCSotherEVCSoff/retail1 to 900010 to 2542326 to 5084651 to 75136876 to 10017813101 to 150251219151 to 200351826201 and over20%50%75%201+: 20% of actual spaces; EVCS are % of EV capable (round up)WORKED EXAMPLE: 250 SPACESEV capable: 250 x 20% = 50EVCS (retail): 50 x 75% = 37.5Round up = 38 EVCSCapable-only: 50 - 38 = 12Accessible EVCS, CBC 11B-228.3.2.1:38 EVCS falls in the 26 to 50 row1 van + 1 standard + 1 ambulatory= 3 accessible EVCS26 or more EVCS: ISA signs on the vanand standard stalls, not the ambulatory(11B-812.8.3, 11B-812.8.4)38 EVCS + 12 EV capable stalls = 50; 3 of the 38 EVCS must be accessibleStall paint: 216 in long, aisle 60 in with painted border and hatching, NO PARKING 12 in,EV CHARGING ONLY 12 in letters; blue is not used on EV access aisles(assumes all 38 EVCS share one charger level and connector type)2025 CALGreen Table 5.106.5.3.1; 2025 CBC Table 11B-228.3.2.1 and 11B-812CC
The diagram for this lesson, exactly as it appears in the Learning Hub.

The first steps of this lesson

Step 1: Two Codes, Two Counts

The 2025 California Green Building Standards Code (CALGreen), Section 5.106.5.3, sets how many electric vehicle (EV) capable spaces and EV charging stations (EVCS) new nonresidential construction must provide, using Table 5.106.5.3.1. The 2025 California Building Code (CBC), Section 11B-228.3, then says how many of the charging stations must be accessible, using Table 11B-228.3.2.1. CALGreen Section 5.106.5.3.4 sends accessible EVCS to CBC Section 11B-228.3. For the accessible parking count in 11B-208, EV charging stations are not counted as parking spaces.

Step 2: Read CALGreen Table 5.106.5.3.1

Pick the row by the total number of actual parking spaces. For example 101 to 150 spaces requires 25 EV capable spaces and 12 EVCS (other than office and retail) or 19 EVCS (office and retail); 151 to 200 requires 35, 18 and 26. At 201 and over, EV capable spaces are 20 percent of actual parking spaces, and EVCS are 50 percent (other) or 75 percent (office and retail) of the EV capable spaces. Footnotes: calculations round up, each EVCS reduces the required EV capable count by the same number, and at least one Level 2 EVSE is required.

The remaining 3 steps, the worked example and the quiz are in the course. This is a preview. The full lesson, with the step-by-step explanations, a worked example and a quick-check quiz, is inside the classroom.

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