(a) Tonnage mark with an equilateral triangle and a line for fresh and tropical waters.

W= 1/48 of the distance from the top of the flat keel to the tonnage mark. (See § 69.177(b)(2).)

(b) Tonnage mark location if the load line mark is not placed as though the second deck were the freeboard deck.

k = a distance between 21 inches and six feet six inches. a = distance derived from Table 69.177(a)(5).

(c)—Tonnage mark location if the load line mark is placed as though the second deck were the freeboard deck.

k = a distance between 21 inches and six feet six inches. a = the distance between the line of the second deck and the uppermost part of the load line grid. [CGD 87-015b, 54 span 37657, Sept. 12, 1989, as amended by USCG-2011-0522, 81 span 18732, Mar. 31, 2016]