33 C.F.R. § 401.56
Damaging or defacing Seaway property
The master of every vessel shall:
(a) Navigate so as to avoid damage to Seaway property; and
(b) Prevent defacement of Seaway property by any member of the vessel's crew.
The master of every vessel shall:
(a) Navigate so as to avoid damage to Seaway property; and
(b) Prevent defacement of Seaway property by any member of the vessel's crew.