Code of Federal Regulations Title 46. Shipping § 46.42.30–25 Summer Zones

(1) However, for vessels of 328 feet and under in length, the area bounded on the north and west by the east coast of the United States;  on the east by the meridian of longitude 68°30′ W. from the coast of the United States to latitude 40° N. and thence by the rhumb line to the point latitude 36° N., longitude 73° W.;  on the south by the parallel of latitude 36° N.;  is a Winter Seasonal Area.