"Ozone Transport Region" (OTR) means that part of the State of Maine included in a region of states comprised of Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, and the Consolidated Metropolitan Statistical Area that includes the District of Columbia, established by Section 184 of the CAA for the control of interstate ozone air pollution. For the State of Maine, the Ozone Transport Region includes all of Maine except for those portions of the State specifically removed from the OTR pursuant to CAA § 176 A.
06-096 C.M.R. ch. 100, § 111