46 C.F.R. § 67.43 Evidence of citizenship.
Title 46 - Shipping
When received by the Coast Guard, a properly completed original Application for Initial Issue, Exchange, or Replacement of Certificate of Documentation; or Redocumentation (form CG–1258) establishes a rebuttable presumption that the applicant is a United States citizen. [CGD 89–007, CGD 89–007a, 58 FR 60266, Nov. 15, 1993; 58 FR 65131, Dec. 13, 1993]
Title 46: Shipping
PART 67—DOCUMENTATION OF VESSELS
Subpart C—Citizenship Requirements for Vessel Documentation
§ 67.43 Evidence of citizenship.