In this Act—

• “enactment” includes any provision of, or of any instrument made under, Northern Ireland legislation (within the meaning given by section 98 of the Northern Ireland Act 1998);

• “Minister of the Crown” has the same meaning as in the Ministers of the Crown Act 1975;

• “Northern Ireland Minister” includes the First Minister and the deputy First Minister;

• “senior officer of a Northern Ireland department” has the same meaning as in the Departments (Northern Ireland) Order 1999 (see Article 2(3) of that Order).

For the purposes of this Act, an Executive is formed once the offices of First Minister and deputy First Minister and those to be held by the other Northern Ireland Ministers are all filled.