46 U.S.C. § 12307
Regulations on numbering and fees
The authority issuing a number under this chapter may prescribe regulations and establish fees to carry out the intent of this chapter. The fees shall apply equally to residents and nonresidents of the State. A State issuing authority may impose only conditions for vessel numbering that are—
(1)
prescribed by this chapter or regulations of the Secretary about the standard numbering system; or
(2)
related to proof of payment of State or local taxes.
( Pub. L. 98–89 , Aug. 26, 1983 , 97 Stat. 591 .)