2019 California Standards for Accessible Design Guide (effective January 1, 2020 with July 1, 2021 amendments)

11B-229.1 General.

Where glazed openings are provided in accessible rooms or spaces for operation by occupants, at least one opening shall comply with Section 11B-309. Each glazed opening required by an administrative authority to be operable shall comply with Section 11B-309.

Exception:

1. Glazed openings in residential dwelling units required to comply with Section 11B-809 shall not be required to comply with Section 11B-229.
2. Glazed openings in guest rooms required to provide communication features and in guest rooms required to comply with Section 11B-206.5.3 shall not be required to comply with Section 11B-229.