"In 1972, the United States Senate gave its unanimous advice and consent to the 1970 UNESCO Convention. However, because the Convention did not have a basis in U.S. law, special legislation was required to allow the U.S. to implement it. In 1982, Congress passed the Convention on Cultural Property Implementation Act (the "Act"), and President Ronald Reagan signed it into law in January 1983. The Act enables the U.S. government to implement Articles 7(b)(1) and 9 of the Convention. (See the Act as Public Law 97-446 (PDF); or as 19 U.S.C. 2601 et seq. (PDF))
"Briefly, pursuant to Article 7(b)(1), States that are party to the Convention undertake to prohibit the importation of documented cultural property stolen from museums or religious or secular public monuments in another State Party to the Convention. Article 9 of the Convention allows any State Party whose cultural patrimony is in jeopardy from pillage to request assistance from other States Parties to carry out measures such as the control of exports, imports, and international commerce in the specific cultural materials concerned."