Uniform Title Memorandum of Understanding between the Government of the United States of America and the Government of Belize Concerning the Imposition of Import Restrictions on Categories of Archaeological Material of Belize (2018 February 23). Protocols, etc. (2022 December 15) Title Cultural exchanges, property and cooperation : import restrictions : agreement between the United States of America and Belize extending the Memorandum of Understanding of February 23, 2018, effected by exchange of notes at Belmopan December 15, 2022 and January 3, 2023 ; entered into force January 3, 2023.