Home2022 Treaties and Agreements ...Guatemala (22-928.5) – Agreement Regarding Mutual Assistance Between Customs Administrations hide Guatemala (22-928.5) – Agreement Regarding Mutual Assistance Between Customs Administrations TIAS Office of Treaty Affairs September 28, 2022 Law Enforcement: Customs Administrations Signed at Washington April 22, 2022; entered into force September 28, 2022. Download Agreement [1 MB] Tags Guatemala Law Enforcement Treaties