A provisional improvement notice must state (a) that the health and safety representative believes the person (i) is contravening a provision of this Act; or(ii) has contravened a provision of this Act in circumstances that make it likely that the contravention will continue or be repeated; and(b) the provision the representative believes is being, or has been, contravened; and(c) briefly, how the provision is being, or has been contravened; and(d) the day, at least 8 days after the notice is issued, by which the person is required to remedy the contravention or likely contravention.