The Immigration Act 1971 (Commencement) Order 1972
This Order provides that Parts I to III of the Immigration Act 1971 shall come into force on 1st January 1973, subject to the provisions of section 35(2) and (3) by virtue of which sections 25 and 28 are already in force to the extent there mentioned. The whole Act will thus be in force on 1st January 1973.