46 C.F.R. § 174.325 Equalization.
Title 46 - Shipping
When doing the calculations required by §174.310 of this subpart— (a) Equalization arrangements requiring mechanical aids, such as valves, may not be assumed to be effective in reducing the angle of heel; and (b) Spaces joined by ducts may be assumed to be common spaces only if equalization takes place within 15 minutes after flooding begins.
Title 46: Shipping
PART 174—SPECIAL RULES PERTAINING TO SPECIFIC VESSEL TYPES
Subpart I—Hopper Dredges With Working Freeboard Assignments
Calculations
§ 174.325 Equalization.
