3. In this Act, unless the contrary intention appears—“energy efficiency rating” means the energy efficiency rating contained in an energy efficiency rating statement; “energy efficiency rating statement” means—
(a) a statement prepared in accordance with the Energy Ratings System for Residential Buildings prescribed by the Australian Capital Territory Planning Authority for the purposes of the Territory Plan as in effect from time to time under the Land (Planning and Environment) Act 1991 ; or
(b) if the regulations make provision for energy efficiency rating statements—a statement prepared in accordance with the regulations;
(a) any habitable structure, whether it is affixed to the land or not;
(b) part of any premises; and
(c) any land, buildings or structures belonging to the premises;