2013 California Standards for Accessible Design Pocket Guide

11B-221.2.4 Temporary structures.

Wheelchair spaces shall not be located on, or be obstructed by, temporary platforms or other movable structures.

Exception:  When an entire seating section is placed on temporary platforms or other movable structures in an area where fixed seating is not provided, in order to increase seating for an event, wheelchair spaces may be placed in that section.

Note:  When required wheelchair spaces are not occupied by persons eligible for those spaces, individual, removable seats may be placed in those spaces.