46 U.S.C. § 12134 - U.S. Code - Unannotated Title 46. Shipping § 12134. Evidentiary uses of documentation

(1) conclusive evidence of nationality for international purposes, but not in a proceeding conducted under the laws of the United States;

(2) conclusive evidence of qualification to engage in a specified trade; and

(3) not conclusive evidence of ownership in a proceeding in which ownership is in issue.