Home2009 Treaties and Agreements ...Vietnam (09-731) – Agreement Concerning the Opening of a Vietnam Consulate General in Houston, Texas hide Vietnam (09-731) – Agreement Concerning the Opening of a Vietnam Consulate General in Houston, Texas TIAS Office of Treaty Affairs July 31, 2009 Consular Relations Agreement effected by exchange of notes at Hanoi July 29 and 31, 2009; entered into force July 31, 2009. Download attachment [432 KB] Tags Consular Assistance Treaties Vietnam