33 CFR 156.107
Alternatives.
(a)The COTP may consider and approve alternative procedures, methods, or equipment standards to be used by a vessel or facility operator in lieu of any requirements in this part if:#
(1)Compliance with the requirement is economically or physically impractical;#
(2)The vessel or facility operator submits a written request for the alternative at least 30 days before operations under the alternative are proposed, unless the COTP authorizes a shorter time; and#
(3)The alternative provides an equivalent level of safety and protection from pollution by oil or hazardous material, which is documented in the request.#
(b)The COTP takes final approval or disapproval action on any alternative requested, in writing, within 30 days of receipt of the request.#