
The law applies to virtually all public places, workplaces and work vehicles that are enclosed or substantially enclosed (definitions below). This includes both permanent structures and temporary ones such as tents and marquees. Indoor smoking rooms in public places and workplaces will no longer be allowed. There are very few exemptions from the law.
Premises will be considered ‘enclosed’ if they have a ceiling or roof and (except for doors, windows or passageways) are wholly enclosed either on a permanent or temporary basis.
Premises will be considered ‘substantially enclosed’ if they have a ceiling or roof, but have an opening in the walls, which is less than half the total area of the walls. The area of the opening does not include doors, windows or any other fittings that can be opened or shut.

