(1) A provisional improvement notice must—
(a) state the circumstance that is occurring, or is likely to occur, that the work safety representative giving the notice believes is causing a contravention or may cause a contravention and the reasons for the belief; and
(b) either—
(i) if the rectification is necessary to prevent or minimise the risk of serious harm to the health or safety of a worker, or someone else, from a hazard—require the responsible person to rectify the matter or activity that the notice relates to within 24 hours starting when the notice is given personally to the person; or
(ii) in any other case—state a period of not less than 7 days starting on the day after the day the notice is issued within which the responsible person must rectify the matter or activity that the notice relates to.
(2) A provisional improvement notice may state the action the responsible person may take to rectify the matter or activity that the notice relates to.
(3) If subsection (1) (b) (ii) applies, before the end of the 7-day period stated in the notice, the work safety representative who issued the provisional improvement notice may, by written notice given to the responsible person, extend the period.