14 C.F.R. § 161.323 Notification of a decision not to implement a restriction.
Title 14 - Aeronautics and Space
If a Stage 3 restriction has been approved by the FAA and the restriction is not subsequently implemented, the applicant shall so advise the interested parties specified in §161.309(a) of this part.
Title 14: Aeronautics and Space
PART 161—NOTICE AND APPROVAL OF AIRPORT NOISE AND ACCESS RESTRICTIONS
Subpart D—Notice, Review, and Approval Requirements for Stage 3 Restrictions
§ 161.323 Notification of a decision not to implement a restriction.