4.—(1) Sections 89, 90, 101 (8), 101A (inserted by the Act of 1987) and 115 (7) of the Principal Act, section 60 of the Act of 1968 and the Act of 1978 are hereby repealed.

(2) Regulations, bye-laws and temporary rules made under a provision or enactment referred to in subsection (1) and in force immediately before the commencement of this section shall continue in force and be deemed to be regulations or, as the case may be, bye-laws made under the corresponding provision of this Act, and they shall be capable of being amended or revoked accordingly, and documents issued under or in accordance with any regulations, bye-laws or temporary rules as aforesaid and in force immediately before such commencement shall continue in force for the purposes of this Act.