(a) This subpart applies to:
(1) An airport imposing a noise or access restriction on the operation of Stage 3 aircraft that first became effective after October 1, 1990.
(2) An airport imposing an amendment to a Stage 3 restriction, if the amendment becomes effective after October 1, 1990, and reduces or limits Stage 3 aircraft operations (compared to the restriction that it amends) or affects aircraft safety.
(b) This subpart does not apply to an airport imposing a Stage 3 restriction specifically exempted in § 161.7, or an agreement complying with subpart B of this part.
(c) A Stage 3 restriction within the scope of this subpart may not become effective unless it has been submitted to and approved by the FAA. The FAA will review only those Stage 3 restrictions that are proposed by, or on behalf of, an entity empowered to implement the restriction.