Note that this standard has been updated and you will need to meet the requirements set out in Australian New Zealand Standard AS / NZS 1170.2:2021 Structural Design Actions - Wind Actions.
You will be required to comply with this standard if you intend to construct an unregistrable movable dwelling or annexe, or install an unregistrable movable dwelling or annexe in a caravan park. This standard specifies design values of wind actions for use in structural design. It is intended to be used in conjunction with AS / NZS 1170.1, which gives the procedure for structural design. Wind speeds and direction factors are provided for a range of probabilities of exceedance.
Other factors cover the environment around the structure, the geometry of the structure and the dynamic interaction of the structure with the wind.