33 C.F.R. § 138.100 Non-owning operator's responsibility for identification.
Title 33 - Navigation and Navigable Waters
(a) Each operator that is not an owner of a vessel certificated under this part, other than an unmanned barge, shall ensure that the original or a legible copy of the demise charter-party (or other written document on the owner's letterhead, signed by the vessel owner, which specifically identifies the vessel operator named on the Certificate) is maintained on board the vessel. (b) The demise charter-party or other document required by paragraph (a) of this section must be presented, upon request, for examination to a United States Government official.
Title 33: Navigation and Navigable Waters
PART 138—FINANCIAL RESPONSIBILITY FOR WATER POLLUTION (VESSELS)
§ 138.100 Non-owning operator's responsibility for identification.
