ada requirements for ev charging stations: What Chapter 11B Requires d

California has required accessible electric vehicle charging spaces since 2017, when Chapter 11B adopted Section 11B-812. The current text sits in the 2025 California Building Code, effective January 1, 2026, and covers EVCS at public accommodations, public buildings, commercial facilities, and public housing. It fixes the count and the space size. It also sets the aisle rules that the federal ADA still lacks.

A federal proposal exists. It is not law yet. The U.S. Access Board published a notice of proposed rulemaking in September 2024, then told Congress in its own budget request that it plans to move that rulemaking to long term or inactive status. That same proposal points to California as the only state with its own adopted accessible EV charging standard.

How Many Accessible EV Charging Spaces California Requires

The count runs off the total number of electric vehicle charging stations (EVCS) at the facility, not off how many the property happens to be installing today. Table 11B-228.3.2.1 sets a sliding scale. It steps up several times before settling into a per-unit formula above 100 total EVCS.

Table 11B-228.3.2.1, 2025 California Building Code, Chapter 11B, effective January 1, 2026.

The table does not run once per site. Section 11B-228.3.2 requires a separate count for each combination of charging level (AC Level 1, AC Level 2, DC Fast Charge, in the industry’s own generic terms) and connector type built into the charger, and each combination counts as its own facility for this purpose. Where a site has more than one combination, the table runs separately for each and the results add together. A charger that can charge more than one vehicle at the same time counts as that many EVCS, not one.

Take a site installing six Level 2 chargers that share one connector type, plus two DC fast chargers that share a different, single connector type, each serving one vehicle at a time. The six Level 2 chargers fall in the 5 to 25 row: 1 van accessible and 1 standard accessible space. The two DC fast chargers fall in the 1 to 4 row: 1 van accessible space. Add the groups and the site needs 2 van accessible spaces and 1 standard accessible space in total, not one of each group. A charger built with two connector types in a single unit sits outside this example: how that case is counted is not addressed here.

Two exceptions remove a charger from this math entirely. An EVCS that is not open to the general public and is designated for a specific driver does not have to comply with Section 11B-228.3.2. Neither does an EVCS that is not open to the public and serves only fleet vehicles. The code’s own guidance reads “designated for use by an individual” broadly enough to mean a driver, an employee, or a resident in public housing.

One rule applies to every charger regardless of accessibility status. Operable parts on all EV chargers, not just the ones counted as accessible, have to comply with Section 11B-309.4.

EV Charging Spaces Are Not Parking Spaces

Chapter 11B does not fold electric vehicle charging spaces into the standard accessible parking count. The advisory language attached to Section 11B-228.3 explains that the EVCS rules are based on similar requirements for parking spaces, but they live in their own section, 11B-812, with dimensions and aisle placement of its own. A site cannot assume its existing accessible parking already satisfies the EVCS table. They run on separate tracks.

The same advisory carries a caution worth knowing before a property specifies equipment. Chapter 11B’s technical standards were sized during the 2015 Triennial Code Cycle for typical passenger cars, trucks, and vans, not the larger electric vehicles that have entered the market since. Stretching the chapter to cover those larger vehicles, the advisory states plainly, does not match the regulations as adopted.

Both kinds of space can still share hardware on the ground. Section 11B-812.7 allows one parking space and one EV charging space, or two vehicle spaces, to share a single access aisle. Sharing an aisle changes nothing about the count: the EVCS table and the parking space rules each get satisfied on their own terms.

Public housing sits inside this same framework rather than outside it. Where a public housing facility provides EV charging for the common use of residents, those chargers comply with Section 11B-228.3.2 the same way any other public or common use installation does.

Space Layout, Access Aisles, and Striping

Every accessible EV charging space in California clears its own length, width, aisle, and marking rules under Sections 11B-812.6 through 11B-812.9, on top of the floor rules in Section 11B-812.3 and the overhead clearance in Section 11B-812.4. None of it is optional once a space is designated van accessible, standard accessible, ambulatory, or drive-up.

Sections 11B-812.6 through 11B-812.6.4, 2025 California Building Code. Length rises to 240 inches for any space, drive-up or not, whose long dimension runs parallel to the adjacent traffic flow. Spaces have to be marked to define their width, except drive-up spaces, which skip that particular marking.

The access aisle itself runs 60 inches wide at minimum and extends the full required length of whatever space or spaces it serves. A van accessible aisle has to sit on the passenger side, with one exception: where a facility has four or fewer total EVCS, a non-angled van accessible space’s aisle can go on either side. Marking follows a pattern familiar from the rest of the chapter: a painted border around the aisle with hatch lines no more than 36 inches apart on center, in a color that contrasts with the pavement. The blue reserved for standard accessible parking aisles is off limits here. Where a parking space and a charging space share one aisle, the marking follows the parking space’s own rule under Section 11B-502.3.3 instead.

Two sets of painted letters go down before the striping crew leaves the lot. NO PARKING, at least 12 inches tall, goes inside each access aisle, positioned to read from the adjacent drive lane. EV CHARGING ONLY, also at least 12 inches tall, goes on the vehicle space itself, its centerline within 6 inches of the space’s own centerline, with its lower corner at the end of the vehicle space length or its lower side aligned with that end.

The floor carries its own rules apart from the striping. The access aisle sits at the same level as the space it serves, without a change in level or a slope steeper than 1:48, and it carries no detectable warning surface at all. Overhead, the space, its aisle, and the route a vehicle drives to reach it all need 98 inches of vertical clearance at minimum, and a cable management system added later cannot cut into that height.

Identification signs follow a scale most property managers do not expect.

Sections 11B-812.8.1 through 11B-812.8.5, 2025 California Building Code. Ambulatory and drive-up spaces never need a symbol. Where a sign is required, it has to be reflectorized and at least 70 square inches, posted immediately adjacent to the vehicle space or within the space’s projected width at the head end. A sign may also go on a wall at the interior end of the space instead, and a van accessible sign has to say so in words. Mounting height runs 60 inches minimum to the bottom of the sign, or 80 inches where the sign sits inside a circulation path.

Adding Chargers to an Existing Lot

Installing new chargers next to ones that already exist raises two separate questions, and California answers them differently. The technical build-out under Section 11B-812, meaning space and aisle sizing plus signage, applies only to the new EVCS going in. The count under Table 11B-228.3.2.1 does not work that way: it runs off the total number of EVCS at the facility, existing units added to new ones, every time the table is checked.

Consider a lot that already has 6 chargers and is adding 4 more. The accessible count is not sized off the 4 new units alone. It is sized off 10 total, which lands in the 5 to 25 row of the table, and that row’s requirement gets checked against what the lot already has before anyone decides what the new installation still needs to add. Run that check against the full site total before ordering equipment, not after adding the new chargers. Altering an existing EVCS is a different case: an alteration has to bring that unit into full compliance with Section 11B-228.3, not just meet the narrower rule that governs a brand new installation next door.

Payment adds one more layer. A charger with a point of sale device carries its own obligation whether it is new or being altered, under Sections 11B-707.2, 11B-707.3, 11B-707.7.2, and 11B-707.9.

Placement of the charger is not free form. It has to sit adjacent to, and within the projected width of, the vehicle space it serves, or the combined projected width where one charger serves more than one EVCS. Two narrower exceptions cover retrofits: where an existing facility lacks an accessible route or circulation path at the head end of the space, the charger can sit within the access aisle’s projected width, up to 36 inches from the head end; and where a space’s long dimension runs parallel to the vehicular way, the charger can sit up to 48 inches from the head or foot end.

None of this stands apart from the rest of the site. The EVCS has to sit on an accessible route to an entrance, and a separate route has to connect the vehicle space to its own charger, without letting a parked vehicle block the clear width of any accessible route next to it. Outside a short list of exceptions, nobody should have to walk behind other vehicle spaces to reach their own.