33 C.F.R. § 174.11 Applicability of State numbering system.
Title 33 - Navigation and Navigable Waters
(a) Except as allowed in paragraph (c) of this section, a State numbering system must require the numbering of vessels to which §173.11 of this chapter applies. (b) A State numbering system may require the numbering of any vessel subject to the jurisdiction of the State unless prohibited by the regulations in Part 173 of this chapter. (c) A State numbering system may exempt from its numbering requirements any vessel or class of vessels to which §173.13 of this chapter applies.
Title 33: Navigation and Navigable Waters
PART 174—STATE NUMBERING AND CASUALTY REPORTING SYSTEMS
Subpart B—Numbering System Requirements
§ 174.11 Applicability of State numbering system.