Except as provided in the next sentence, this Part shall apply to every authority, commission or public benefit corporation identified as a "public authority" in section 203.1 of this Part, unless a waiver is granted by the State Comptroller upon good cause shown. The Metropolitan Transportation Authority and its Agencies shall continue to be governed by Part 202 of this Title with the exception that sections 203.4(a)-(e), 203.6(d)-(g), and 203.8(b) and (c) of this Part shall also apply to the Metropolitan Transportation Authority and its agencies; provided, however, that with respect to the Metropolitan Transportation Authority and its agencies, the definitions set forth in Part 202 of this Chapter shall be used for purposes of determining compliance with the applicable provisions of this Part.