DOI OPERATIONAL PROCEDURES MEMORANDUM (OPM) - 05
Subject: Office of Aviation Services (OAS) Designated Night Routes in Alaska
Effective Date: January 1, 2026
Last Updated: January 1, 2015
Expiration Date: December 31, 2026
1. Summary of Changes. The Executive Aviation Subcommittee (EAS) reviewed on 10 November, 2022, and determined that no changes were required to the OPM.
2. Purpose. This memorandum establishes policy and procedures for night routes for Department of the Interior (DOI) bureaus and offices within the State of Alaska.
3. Policy. Restrictions have been placed on airplane flight operations in designated mountainous areas at night with certain exceptions as stipulated in 351 DM 1.
5. Procedure.
United States Department of the Interior
Office of Aviation Services
300 E Mallard Drive, Suite 200
Boise, Idaho 83706-3991
DOI OPERATIONAL PROCEDURES MEMORANDUM (OPM) - 05 Subject: Office of Aviation Services (OAS) Designated Night Routes in Alaska Effective Date : January 1, 2026 Last Updated: January 1, 2015 Expiration Date: December 31, 2026 1. Summary of Changes. The Executive Aviation Subcommittee (EAS) reviewed on 10 November, 2022, and determined that no changes were required to the OPM.
2. Purpose. This memorandum establishes policy and procedures for night routes for Department of the Interior (DOI) bureaus and offices within the State of Alaska.
3. Policy. Restrictions have been placed on airplane flight operations in designated mountainous areas at night with certain exceptions as stipulated in 351 DM 1.
4. Authority. This policy is established by the Director, Department of the Interior, Office of Aviation Services (OAS) in accordance with the provisions of Departmental Manual 112 DM 12, 350 DM 1, and Secretarial Order 3322 dated August 23, 2012.
5. Procedure.
A. Request for Approval. Bureaus requesting approval for a specific night route to be flown by their pilots shall complete Form OAS-76, Request for Authorization of Approved Flight Routes , and submit the form to the Alaska Regional Director.
B. Approval of Designated Routes.
1) Initial Route Approval. If a requested route has not been previously designated, an Office of Aviation Services (OAS) pilot inspector will fly the route with each bureau pilot requiring route approval. The route will be flown in the type aircraft equipped for that route.
2) Initial Pilot Approval. OAS will review the pilot's experience and past performance.
Pilots shall meet DOI flight time requirements without waiver. A request shall be submitted for each pilot to be evaluated for a night route. Should OAS approve the route, each pilot will be individually evaluated based on familiarity and experience in the area.
OPM - 05 Page 2 A file shall be maintained at the Alaska Regional Office of all pilot(s) and route approvals and limitations, if any.
Susan E. Bates Director, Office of Aviation Services