The following instruments made under this Act are not legislative instruments for the purposes of the Subordinate Legislation Act 1994 —
(a) an agreement to vary all or any of the provisions of the Agreement under section 15(1);
(b) a variation of all or any of the provisions of the Agreement under section 15(1A);
(c) an agreement to vary all or any of the provisions of the Integration and Facilitation Agreement under section 15B(1);
(d) a variation of all or any of the provisions of the Integration and Facilitation Agreement made under section 15B(2);
(e) an agreement to vary all or any of the provisions of the Extension Agreement under section 15D(1);
(f) a variation of all or any of the provisions of the Extension Agreement made under section 15D(2).