19 U.S.C. § 2607 : US Code - Section 2607: Stolen cultural property

Search 19 U.S.C. § 2607 : US Code - Section 2607: Stolen cultural property

No article of cultural property documented as appertaining to the
inventory of a museum or religious or secular public monument or
similar institution in any State Party which is stolen from such
institution after the effective date of this chapter, or after the
date of entry into force of the Convention for the State Party,
whichever date is later, may be imported into the United States.