(a) This part applies to the following entities, whether or not they receive Federal financial assistance from the Department of Transportation:

(1) Any public entity that provides designated public transportation or intercity or commuter rail transportation;

(2) Any private entity that provides specified public transportation; and

(3) Any private entity that is not primarily engaged in the business of transporting people but operates a demand responsive or fixed route system.

(b) For entities receiving Federal financial assistance from the Department of Transportation, compliance with applicable requirements of this part is a condition of compliance with section 504 of the Rehabilitation Act of 1973 and of receiving financial assistance.

(c) Entities to which this part applies also may be subject to ADA regulations of the Department of Justice (28 CFR parts 35 or 36, as applicable). The provisions of this part shall be interpreted in a manner that will make them consistent with applicable Department of Justice regulations. In any case of apparent inconsistency, the provisions of this part shall prevail.