46 C.F.R. § 174.070 General damage stability assumptions.
Title 46 - Shipping
For the purpose of determining compliance with §174.065, the assumptions are made that during flooding and the resulting change in the unit's waterline— (a) The unit is not anchored or moored; and (b) No compartment on the unit is ballasted or pumped out to compensate for the flooding described in §§174.075 through 174.085.
Title 46: Shipping
PART 174—SPECIAL RULES PERTAINING TO SPECIFIC VESSEL TYPES
Subpart C—Special Rules Pertaining to Mobile Offshore Drilling Units
§ 174.070 General damage stability assumptions.