Home1999 Treaties and Agreements ...Romania (12976) – Agreement Regarding Mutual Assistance Between Their Customs Administrations hide Romania (12976) – Agreement Regarding Mutual Assistance Between Their Customs Administrations TIAS Office of Treaty Affairs June 1, 1999 Law Enforcement: Customs Agreement signed at Washington July 16, 1998; Entered into force June 1, 1999. Download attachment [778 KB] Tags International Law, Treaties, and Agreements Law Enforcement Romania