2026-21456NoticeWallet

Navy ship gets a pass on standard navigation lights

Published Date: 10/20/2026

Notice

Summary

The U.S. Navy has officially given USS Harrisburg (LPD 30) a special pass because its unique design means it can’t fully follow the usual navigation light rules without messing up its mission. This change started on August 20, 2026, and lets mariners know to expect different light setups on this ship. No extra costs or delays are involved—just a smart adjustment for a one-of-a-kind naval vessel.

Analyzed Economic Effects

1 provisions identified: 1 benefits, 0 costs, 0 mixed.

USS Harrisburg alternate navigation lights

If you are navigating near USS HARRISBURG (LPD 30), expect its navigation lights to differ from the usual International Regulations for Preventing Collisions at Sea (72 COLREGS). The Navy issued a Certificate of Alternate Compliance effective October 20, 2026 (applicable beginning August 20, 2026) because the ship cannot fully meet: Annex I, Paragraph 2(i)(i) (vertical position of task lights), Annex I, Paragraph 3(a) (horizontal separation of masthead lights), and Annex I, Paragraph 2(k) (vertical separation of anchor lights). This notice is intended to warn mariners in waters where 72 COLREGS apply.

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Key Dates

Published Date
10/20/2026

Department and Agencies

Department
Independent Agency
Agency
Defense Department
Navy Department
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