46 CFR § 69.167
Superstructure tonnage
April 15, 2021
The superstructure tonnage provisions in §69.113 apply; except that, under this subpart, spaces between the line of the uppermost complete deck and the uppermost complete deck itself due to a stepped uppermost complete deck are not included in the superstructure tonnage.
[CGD 87-015b, 54 FR 37657, Sept. 12, 1989, as amended by USCG-2011-0522, 81 FR 18731, Mar. 31, 2016]