33 CFR § 401.47
Leaving a lock
August 2, 2023
§ 401.47 Leaving a lock.
(a) Mooring lines shall only be cast off as directed by the officer in charge of a mooring operation.
(b) No vessel shall proceed out of a lock until the exit gates, ship arresters and the bridge, if any, are in a fully open position.
(c) When “Hands Free Mooring system (HFM) is used, no vessel shall use its engine(s) until the lock operator provides the “all clear” instruction.
[81 FR 13746, Mar. 15, 2016]