128   Exemption power—authorities

(1)  An authority may, in accordance with any guidelines given by the State Council, exempt a person or a class of persons in writing from the operation of this Part or a specified provision of this Part.

(2)  The exemption may be limited in duration or may be subject to such factors or circumstances as may be specified in the exemption.

(3)  The authority may cancel the exemption in writing at any time.

(4)  An authority is to give notice in accordance with the regulations of any exemption given (or of any cancellation of an exemption made) by the authority under this section.