Home2011 Treaties and Agreements ...Saint Christopher and Nevis (11-1213.1) – Air Transport Agreement hide Saint Christopher and Nevis (11-1213.1) – Air Transport Agreement TIAS Office of Treaty Affairs December 13, 2011 Transportation: Transport Services Agreement signed at Basseterre December 13, 2011; entered into force December 13, 2011. Download attachment [1 MB] Tags Aviation and Maritime Transportation International Law, Treaties, and Agreements Saint Kitts and Nevis