§ 55.3 Applicability.

(a) This part applies to all OCS sources except those located in the Gulf of Mexico west of 87.5 degrees longitude.

(b) OCS sources located within 25 miles of States' seaward boundaries shall be subject to all the requirements of this part, which include, but are not limited to, the Federal requirements as set forth in § 55.13 of this part and the Federal, State, and local requirements of the COA (designated pursuant to § 55.5 of this part), as set forth in § 55.14 of this part.