42 U.S. Code § 6939d - Public vessels
(a) Waste generated on public vessels
Any hazardous waste generated on a public vessel shall not be subject to the storage, manifest, inspection, or recordkeeping requirements of this chapter until such waste is transferred to a shore facility, unless—
(1) the waste is stored on the public vessel for more than 90 days after the public vessel is placed in reserve or is otherwise no longer in service; or
(b) Computation of storage period
For purposes of subsection (a) of this section, the 90-day period begins on the earlier of—
(1) the date on which the public vessel on which the waste was generated is placed in reserve or is otherwise no longer in service; or
(2) the date on which the waste is transferred from the public vessel on which the waste was generated to another public vessel within the territorial waters of the United States;
and continues, without interruption, as long as the waste is stored on the original public vessel (if in reserve or not in service) or another public vessel.
For purposes of this section:
(1) The term “public vessel” means a vessel owned or bareboat chartered and operated by the United States, or by a foreign nation, except when the vessel is engaged in commerce.