46 C.F.R. § 45.9 Seasonal application of load lines for vessels not marked under this part.
Title 46 - Shipping
(a) For the purposes of the law and regulations prohibiting submergence of load lines (46 U.S.C. 88c; 46 CFR 42.07–10) the marks assigned to vessels holding international load line certificates apply during the following seasons: (1) Vessels assigned freeboards as new vessels under the International Load Line Convention, 1966— (i) Winter—November 1 through March 31. (ii) Summer—April 1 through April 30 and October 1 through October 31. (iii) Tropical—May 1 through September 30; (2) Vessels assigned freeboards as existing vessels under the International Load Line Convention, 1966— (i) Winter—November 1 through March 31; (ii) Summer—April 1 through April 30 and October 1 through October 31; (iii) Tropical—September 16 through September 30; (iv) Tropical Fresh—May 1 through September 15. (b) Except for hopper dredges operating at working freeboards in accordance with subpart C of part 44 of this chapter, the Assigning Authority may not allow for lesser freeboards. [CGD 73–49R, 38 FR 12290, May 10, 1973, as amended by CGD 76–080, 54 FR 36977, Sept. 6, 1989]
Title 46: Shipping
PART 45—GREAT LAKES LOAD LINES
Subpart A—General
§ 45.9 Seasonal application of load lines for vessels not marked under this part.

