Section 7 of the Principal Act is amended by inserting the following subsection after subsection (7):
"(8) A person who makes a request under subsection (1) may, at any time before the making of a decision under section 8(1) in relation to the request, by notice in writing or in such other form as may be determined, given to the head concerned, withdraw the request and the head concerned shall cause notice of the withdrawal to be given to any other person to whom, in the opinion of the head, it should be given.".