Code of Federal Regulations Title 33. Navigation and Navigable Waters § 33.3.04–1 Atlantic Area

(a) The Area Office is in Portsmouth, VA.

(b) The Atlantic Area is comprised of the land areas and U.S. navigable waters of the First, Fifth, Seventh, Eighth and Ninth Coast Guard Districts and the ocean areas lying east of a line extending from the North Pole south along 95° W. longitude to the North American land mass;  thence along the east coast of the North, Central, and South American land mass to the intersection with 70° W. longitude;  thence due south to the South Pole. These waters extend east to the Eastern Hemisphere dividing line between the Atlantic and Pacific Areas which lies along a line extending from the North Pole south along 100° E. longitude to the Asian land mass and along a line extending from the South Pole north along 17° E. longitude to the African land mass.