ADA parking rules, in plain English

The rules that decide whether your lot is compliant aren't complicated, they're just badly explained. Here's the short version, then the free tool that does the math for you.

1. It comes down to a stall count

Under the 2010 ADA Standards (§208), the number of accessible spaces you owe is set by your total number of spaces. A rough guide: 1 accessible space for lots up to 25 spaces, 2 up to 50, 3 up to 75, 4 up to 100, then it steps up from there. Lots of 501–1,000 spaces owe 2% of the total, and very large lots add one space per additional 100.

2. One in six must be van-accessible

At least one of every six accessible spaces (rounding up) must be van-accessible, with a wider access aisle. Even a small lot with one accessible space needs it to be van-accessible.

3. Access aisles and signage are part of it

An accessible space isn't just a wider stall. It needs a marked access aisle beside it and compliant signage mounted at the right height. A faded stall, a missing aisle, or a sign that's too low can all put a lot out of compliance.

4. California can require more

The California Building Code (CBC) can be stricter than the federal minimum for certain uses. The federal number is the floor, not always the final answer, so an on-site striper confirms the layout for your specific property.

This guide is general information, not legal advice. Confirm your specific obligations with a qualified professional.