Code of Federal Regulations Title 19. Customs Duties § 19.12.107 Importations permitted

(a) A certificate, or its electronic equivalent, issued by the Government of the country of origin of such sculpture or mural, in a form acceptable to the Secretary, certifying that such exportation was not in violation of the laws of that country, is filed with the port director;  or

(b) Satisfactory evidence is presented to the port director that such sculpture or mural was exported from the country of origin on or before June 1, 1973;  or

(c) Satisfactory evidence is presented to the port director that such sculpture or mural is not an article listed in § 12.105.