View all text of Subjgrp 61 [§ 174.310 - § 174.330]
§ 174.325 - Equalization.
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.