(1) In this Part date of transition means a date, which must be a date falling within 12 months after the commencement of the new Act, fixed by the Minister by notice published in the Gazette ;HEC means the Hydro-Electric Corporation formerly known as the Hydro-Electric Commission;new Act means the Electricity Industry Safety and Administration Act 1997 ;old Act means the Hydro-Electric Commission Act 1944 ;old regulations means the Hydro-Electric Commission (Licensing of Electrical Contractors and Mechanics) Regulations 1934 .(2) Words and expressions used in this Part are, where relevant, to be construed by reference to definitions in the new Act.