This Part comes into force on the day on which this Act is passed.

The other provisions of this Act come into force on such day as the Secretary of State may by regulations made by statutory instrument appoint.

Different days may be appointed for different purposes.

The Secretary of State may by regulations made by statutory instrument make transitional or saving provision in connection with the coming into force of any provision of this Act.

The power to make regulations under subsection (4) includes power to make different provision for different purposes.