42 U.S.C. § 12142 — Public entities operating fixed route systems

(a) Purchase and lease of new vehicles. For purposes of section 12132 and section 794 of title 29, it counts as discrimination for a public entity that operates a fixed route system to buy or lease a new bus, rapid rail vehicle, light rail vehicle, or other new vehicle for that system — if the solicitation happens more than 30 days after July 26, 1990 — unless the vehicle is readily accessible to and usable by individuals with disabilities, including individuals who use wheelchairs. (b) Purchase and lease of used vehicles. Subject to (c)(1), it counts as discrimination for such an entity to buy or lease a used vehicle for that system after that 30-day mark, unless the entity makes demonstrated good faith efforts to find a used vehicle that is readily accessible to and usable by individuals with disabilities, including individuals who use wheelchairs. (c) Remanufactured vehicles. (1) Except as (2) allows, it counts as discrimination for such an entity to remanufacture a vehicle for that system in a way that extends its usable life by 5 years or more, where the remanufacturing — or its solicitation — begins after that 30-day mark, or to buy or lease, during that extended-life period and after that mark, a vehicle already remanufactured that way — unless, after remanufacturing, the vehicle is, to the maximum extent feasible, readily accessible to and usable by individuals with disabilities, including individuals who use wheelchairs. (2) If a public entity's fixed route system includes a segment on the National Register of Historic Places, and making a historic vehicle used only on that segment accessible would significantly alter its historic character, the entity only has to make — or buy or lease with — the modifications needed to meet (1) that do not significantly alter the vehicle's historic character. Regulations issued by the Secretary define what counts as a vehicle of historic character for this purpose and for section 12148(b).