Home2012 Treaties and Agreements ...Guatemala (12-925) – Agreement Amending and Extending the Memorandum of Understanding Concerning the Imposition of Import Restrictions on Archaeological Objects and Materials from the Pre-Columbian Cultures of Guatemala hide Guatemala (12-925) – Agreement Amending and Extending the Memorandum of Understanding Concerning the Imposition of Import Restrictions on Archaeological Objects and Materials from the Pre-Columbian Cultures of Guatemala TIAS Office of Treaty Affairs September 25, 2012 Cultural Exchanges, Property and Cooperation Amendment and extension of agreement of September 29, 1997 (97 929 [4 MB]). Agreement effected by exchange of notes at Guatemala City September 13 and 25, 2012; entered into force September 25, 2012. Download attachment [691 KB] Tags Cultural Properties Guatemala Treaties