28 CFR Part 36 Nondiscrimination on the Basis of Disability by Public Accommodations and in Commercial Facilities NPRM (2008 Title III NPRM)

(2) Group ticket purchases.  To the extent possible, a public accommodation in assembly areas shall permit wheelchair users to purchase companion tickets on the same terms that tickets are made available to other members of the public.  In assembly areas with seating capacities exceeding 5,000, designate at least three companion seats for each of five wheelchair seating spaces in order to provide more flexible seating arrangements for families and other small groups.  The group companion seats required by this subsection may be located adjacent to either the wheelchair location or other companion seats.