(1) This Section applies to the design, erection, assembly and installation of a demountable stage where,
(a) the aggregate area of all platforms of the demountable stage is more than 60 m2 and any part of its platforms is more than 3 m in height above adjacent ground level,
(b) the aggregate area of all platforms of the demountable stage is more than 225 m2, or
(c) any part of the platforms or any roof, wall or structure attached to or located on any of the platforms of the demountable stage is 5 m or more in height above adjacent ground level.
(2) This Section applies to the design, erection, assembly and installation of a demountable support structure where the demountable support structure,
(a) is more than 3 m in height above adjacent ground level,
(b) is designed to carry a superimposed specified load greater than 115 kg, or
(c) would create a hazard to the public.
(3) Except as provided in this Section, demountable stages and demountable support structures are exempt from complying with the requirements of this Division.