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PROPOSED RULECOMMENTS CLOSED OCTOBER 20, 2026

Withdrawal of International Airport Designation of Chalk Seaplane Base

Homeland Security Department / Energy Department / U.S. Customs and Border Protection

U.S. Customs and Border Protection (CBP) is proposing to withdraw the international airport designation of Chalk Seaplane Base, now operating as Miami Seaplane Base. This proposal is based on evidence that the facility at this location has not been in compliance with CBP regulatory and security standards and the amount of business clearing through the airport does not justify continued maintenance of inspection equipment and personnel. The proposed change is part of CBP's continued efforts to use its personnel, facilities, and resources more efficiently and to provide better service to carriers, importers, and the public.

Published August 21, 2026Document 2026-17108

What happens next

The comment period closed on October 20, 2026. The agency now reviews the comments. If it goes ahead, it publishes a final rule in the Federal Register that responds to significant comments. We link it here when it appears. See what is open for comment now.

From the Federal Register as of November 3, 2026. Deadlines can change; the official document governs. Not legal advice.

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