The Coast Guard proposes revisions to its regulations for the licensing, construction, design, equipment, and operation of deepwater ports, which are offshore fixed or floating structures, other than vessels, used as ports or terminals for the import or export of oil and natural gas. The proposed revisions would provide additional information, clarify existing regulations, provide additional regulatory flexibility, and add new requirements to ensure safety. The proposed rule would not affect the license of any existing deepwater port, nor would it result in the licensing of any new deepwater port. The proposed rule furthers the Coast Guard's maritime safety and stewardship missions.