33 C.F.R. § 401.47
(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.
(68 Stat. 93-96, 33 U.S.C. 981-990, as amended and secs. 4, 5, 6, 7, 8, 12 and 13 of sec. 2 of Pub. L. 95-474, 92 Stat. 1471)
[81 FR 13746, Mar. 15, 2016, as amended at 89 FR 15961, Mar. 6, 2024]