{"data":{"id":"us/46-cfr-42.30-5","jurisdiction":"us","citation":"46 CFR 42.30-5","heading":"-5 Northern Winter Seasonal Zones and area.","body":"(a) North Atlantic Winter Seasonal Zones I and II. (1) The North Atlantic Winter Seasonal Zone I lies within the meridian of longitude 50° W. from the coast of Greenland to latitude 45° N.; thence the parallel of latitude 45° N. to longitude 15° W.; thence the meridian of longitude 15° W. to latitude 60° N.; thence the parallel of latitude 60° N. to the Greenwich Meridian, thence this meridian northwards.\n(i) Seasonal periods:\nWinter: October 16 to April 15.\nSummer: April 16 to October 15.\n(2) The North Atlantic Winter Seasonal Zone II lies within the meridian of longitude 68°30′ W. from the coast of the United States to latitude 40° N.; thence the rhumb line to the point latitude 36° N., longitude 73° W.; thence the parallel of latitude 36° N. to longitude 25° W.; and thence the rhumb line to Cape Torinana. Excluded from this zone are the North Atlantic Winter Seasonal Zone I and the Baltic Sea bounded by the parallel of the latitude of The Skaw in the Skagerrak.\n(i) Seasonal periods:\nWinter: November 1 to March 31.\nSummer: April 1 to October 31.\n(b) North Atlantic Winter Seasonal Area. (1) The boundary of the North Atlantic Winter Seasonal Area is the meridian of longitude 68°30′ W. from the coast of the United States to latitude 40° N.; thence the rhumb line to the southernmost intersection of the meridian of longitude 61° W. with the coast of Canada; and thence the east coasts of Canada and the United States.\n(i) Seasonal periods:\n(a) For vessels over 328 feet in length:\nWinter: December 16 to February 15.\nSummer: February 16 to December 15.\n(b) For vessels of 328 feet and under in length:\nWinter: November 1 to March 31.\nSummer: April 1 to October 31.\n(c) North Pacific Winter Seasonal Zone. The southern boundary of the North Pacific Winter Seasonal Zone is the parallel of latitude 50° N. from the east coast of the Union of Soviet Socialist Republics, to the west coast of Sakhalin; thence the west coast of Sakhalin to the southern extremity of Cape Kril'on: thence the rhumb line to Wakkanai, Hokkaido, Japan; thence the east and south coasts of Hokkaido to longitude 145° E., thence the meridian of longitude 145° E. to latitude 35° N., thence the parallel of latitude 35° N. to longitude 150° W. and thence the rhumb line to the southern extremity of Dall Island, Alaska.\n(1) Seasonal periods:\nWinter: October 16 to April 15.\nSummer: April 16 to October 15.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER E—LOAD LINES","PART 42—DOMESTIC AND FOREIGN VOYAGES BY SEA","Subpart 42.30—Zones, Areas, and Seasonal Periods"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"8720f7d6e6fbde152821c8ca4b015bf96ac12afdf95f22603058ea8ff6e90bae","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-42.30-1","next":"us/46-cfr-42.30-10"},"notice":"GroundRules: Original legal text. Not legal advice."}