2022 California Standards for Accessible Design Guide (effective January 1, 2023)

406.2.2 Clear height.

The clear height of each floor level in vehicle and pedestrian traffic areas shall be not less than 7 feet (2134 mm). Canopies under which fuels are dispensed shall have a clear height in Section 406.7.2. [DSA-AC] The clear height of vehicle and pedestrian areas required to be accessible shall comply with Chapter 11A or 11B, as applicable.
Exception: A lower clear height is permitted for a parking tier in mechanical-access open parking where approved by the building official.

Advisory 406.2.2 Clear height. While the minimum height is required to be 7'-0" by this section, greater vertical clearance is required at van-accessible parking spaces, standard accessible parking spaces, the vehicular routes to these spaces, and passenger drop-off and loading zones. Refer to Chapters 11A and 11B for requirements in these areas. ◼