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.