33 CFR § 156.118 - Advance notice of transfer.
(a) The COTP may require a facility operator to notify the COTP of the time and place of each transfer operation at least 4 hours before it begins for facilities that:
(1) Are mobile;
(2) Are in a remote location;
(3) Have a prior history of oil or hazardous material spills; or
(4) Conduct infrequent transfer operations.
(b) In the case of a vessel to vessel transfer, the COTP may require a vessel operator of a lightering or fueling vessel to notify the COTP of the time and place of each transfer operation, as specified by the COTP, at least 4 hours before it begins.
(c) No person may conduct such transfer operations until advance notice has been given as specified by the COTP.
The notification may be accomplished by submitting a written schedule, periodically updated to be current.