Sections 4 to 11 above (and section 1 above so far as it relates to those sections) shall not come into force until such day as the Secretary of State may by order appoint, and different days may be appointed for different provisions or for different purposes.
An order under subsection (1) above—
Without prejudice to the generality of subsections (1) and (2) above, with respect to any provision of section 4 above an order under subsection (1) above may appoint different days in relation to different descriptions of asylum-seekers and dependants of asylum-seekers; and any such descriptions may be framed by reference to nationality, citizenship, origin or other connection with any particular country or territory, but not by reference to race, colour or religion.