46 C.F.R. § 69.163 Under-deck tonnage.
Title 46 - Shipping
The under-deck tonnage provisions in §69.109 apply; except that, under the Dual Measurement System, spaces between the line of the tonnage deck and the tonnage deck itself due to a stepped tonnage deck are included in under-deck tonnage.
Title 46: Shipping
PART 69—MEASUREMENT OF VESSELS
Subpart D—Dual Measurement System
§ 69.163 Under-deck tonnage.
