9. The Secretary of State may make such provisions giving full effect to or otherwise supplementing the provisions made by this Order (other than provisions conferring or imposing functions as mentioned in section 4(5)(a) of the Education Reform Act 1988) as appear to him to be expedient, including in particular provisions as to NC tests and NC tasks for the purpose mentioned in the definition of such tests and tasks in article 3(1) and as to the time when and the manner in which the tests are to be administered.