Home2020 Treaties and Agreements ...Multilateral (20-629) – Air Transport Agreement hide Multilateral (20-629) – Air Transport Agreement TIAS Office of Treaty Affairs June 29, 2020 Transportation: Aviation Transport Services Signed at Brussels and Washington April 25 and 30, 2007; entered into force June 29, 2020. With Annexes and Joint Declaration. Download Agreement [48 MB] Tags Air Transport Agreements European Union Transportation Treaties