; or (ii) by name or reference in the vessel response plan’s geographic-specific appendix on the date of approval of the vessel response plan; or (B) that, with respect to a vessel described in subsection (a)(2), is regularly engaged in harbor assist operations, including the docking, undocking, mooring, unmooring, and escorting of vessels with limited maneuverability. (c) Limitations A vessel exempted under subsection (a) is subject to the following operating limitations: (1) Response vessels The voyage of a vessel exempted under subsection (a)(1) shall— (A) be less than 12 hours, or in the case of a voyage in the territorial waters of Alaska, Guam, Hawaii, and American Samoa, have sufficient manning as determined by the Secretary; and (B) originate and end in the inspection zone of a single Officer In-Charge, Marine Inspection, as defined in section 3305(d)(4) of title 46, United States Code. (2) Escort vessels The voyage of a vessel exempted under subsection (a)(2) shall— (A) be less than 12 hours in total duration; (B) originate and end in the inspection zone of a single Officer In-Charge, Marine Inspection, as such term is defined in section 3305(d)(4) of title 46, United States Code