The agreement was provided for in British law by deeming the Irish Free State to be part of the United Kingdom for the purposes of immigration law. It was fully implemented in 1925 when legislation passed in both countries provided for the recognition of the other's landing conditions for foreigners. This may be considered to have been the high point of the CTAalthough it was not called that at the timeas it almost amounted to a common immigration area. A foreigner who had been admitted to one state could, unless his or her admission had been conditional upon not entering the other state, travel to the other with only minimal bureaucratic requirements.