Evidentiary uses of documentation

conclusive evidence of nationality for international purposes, but not in a proceeding conducted under the laws of the United States; conclusive evidence of qualification to engage in a specified trade; and not conclusive evidence of ownership in a proceeding in which ownership is in issue. A certificate of documentation is— (Source: (Pub. L. 109–304, § 5, Oct. 6, 2006, 120 Stat. 1506.))