115. An employer shall—

(a) ensure that no employee passes across or near, or works on, from or near, a fragile surface, where work can be carried out safely and under appropriate ergonomic conditions without his or her doing so,

(b) where it is necessary to pass across or near, or work on, from or near a fragile surface—

(i) ensure, so far as is reasonably practicable, that suitable and sufficient platforms, coverings, guard rails or other similar means of support or protection are provided and used so that any foreseeable loading is supported by such supports or borne by such protection, and

(ii) where a risk of an employee falling remains despite the measures taken under this Regulation, take suitable and sufficient measures to minimise the distance of a potential fall and the risk of personal injury, and

(c) where an employee may pass across or near, or work on, from or near a fragile surface, ensure that—

(i) prominent warning notices are affixed at the approach to the place where the fragile surface is situated, or

(ii) where that is not practicable, such employee is made aware of it by other means.