Section 16-344 - Exemption from state regulation and state and local tax(a) Mass transportation and railroad service operated pursuant to this compact shall be exempt from state regulation.(b) During such time as the Metropolitan Transportation Authority, a state agency of the state of New York, or any subsidiary corporation of said authority shall operate the New Haven commuter railroad service under and by virtue of an interstate compact between the state of Connecticut and the state of New York, none of the authority's activities conducted within the boundaries of the state of Connecticut for or in connection with the operation, maintenance, repair or improvement of such service or of the agency's facilities shall be subject to any state or local tax, nor shall any state or local tax be imposed upon the possession, sale, storage, acceptance, consumption or other use of tangible personal property, including but not limited to motor fuels, by said authority or upon the rendering of services to said authority, for such operation, maintenance, repair or improvement. The Commissioner of Revenue Services shall provide exemption certificates, prepared by him, to the authority enabling it to avail itself of the benefits of this provision, but such benefits shall not be conditioned upon the preparation, issuance or acceptance of any such certificate.Conn. Gen. Stat. § 16-344
(1969, P.A. 46, S. 2; P.A. 88-134, S. 2, 3.)
Since section specifically refers to "state regulation", it is controlling as an exception to the Environmental Protection Act, which is general in its terms. 166 C. 337.