Americans with Disabilities Act (ADA) of 1990 (with amendments issued through 2008)

(B) Fixed route system

(i) Accessibility

It shall be considered discrimination for a private entity which operates a fixed route system and which is not subject to section 12184 of this title to purchase or lease a vehicle with a seating capacity in excess of 16 passengers (including the driver) for use on such system, for which a solicitation is made after the 30th day following the effective date of this subparagraph, that is not readily accessible to and usable by individuals with disabilities, including individuals who use wheelchairs.

(ii) Equivalent service

If a private entity which operates a fixed route system and which is not subject to section 12184 of this title purchases or leases a vehicle with a seating capacity of 16 passengers or less (including the driver) for use on such system after the effective date of this subparagraph that is not readily accessible to or usable by individuals with disabilities, it shall be considered discrimination for such entity to fail to operate such system so that, when viewed in its entirety, such system ensures a level of service to individuals with disabilities, including individuals who use wheelchairs, equivalent to the level of service provided to individuals without disabilities.