(a) This section applies to each vessel that has a well installed in a double bottom required by § 171.105.
(b) Except as provided in paragraph (c) of this section—
(1) The depth of a well must be at least 18 inches (45.7 cm) less than the depth of the double bottom at the centerline; and
(2) The well may not extend below the horizontal plane C illustrated in Figure 171.105.
(c) A well may extend to the outer bottom of a double bottom at the after end of a shaft tunnel.
authority: 46 U.S.C. 2103,
3306; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 0170.1
source: CGD 79-023, 48 FR 51017, Nov. 4, 1983, unless otherwise noted.
cite as: 46 CFR 171.106