4. The provisions of the Act which are specified in column 1 of Schedule 2 to this Order, and described by reference to the subject matter in column 2 of that Schedule shall, in so far as they are not then in force, come into force on 20th July 1992 but, where a particular purpose is specified in relation to any provision in column 3 of that Schedule, that provision shall come into force on that day only for that purpose.