In this Act unless the context otherwise requires -

"Board" means the governing body provided for under section 4(1) of this Act;

"Minister" means the Minister responsible for the environment;

"person responsible" in relation to any undertaking, enterprise, construction or development, includes any person at whose order or on whose behalf the undertaking, enterprise, construction or development is being done or will be done.

"premises" included any building, land, ship, aircraft, caravan but does not include a building or place used exclusively as a dwelling house.