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U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 46Chapter IPart 42Subpart 42.30 - Subpart 42.30—Zones, Areas, and Seasonal Periods
§ 42.30-1 - Basis.
§ 42.30-5 - Northern Winter Seasonal Zones and area.
§ 42.30-10 - Southern Winter Seasonal Zone.
§ 42.30-15 - Tropical Zone.
§ 42.30-20 - Seasonal Tropical Areas.
§ 42.30-25 - Summer Zones.
§ 42.30-30 - Enclosed seas.
§ 42.30-35 - The Winter North Atlantic Load Line.
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