3. Subject to the transitional provision in paragraph 2 of the Schedule to this Order, the following provisions of the Act shall come into force on 1st April 1997—
section 159,
sections 160 to 163 to the extent that they are not already in force,
section 164,
section 165 to the extent that it is not already in force,
section 166,
section 167 to the extent that it is not already in force,
section 168,
sections 170 and 171,
section 173, and
section 227 in so far as it relates to Part VII of Schedule 19.