(1) If, by regulations under the 1989 Act implementing the 1992 Directive, an employer is required to move an employee to whom this Part applies to other work (whether as a result of a risk assessment or because the employee cannot be required to perform night work), but -

(a) it is not technically or objectively feasible for the employer to move the employee as required by the regulations, or

(b) such a move cannot reasonably be required on duly substantiated grounds, or

(c) the other work to which the employer proposes to move the employee is not suitable for her,

the employee shall be granted leave from her employment under this section.

(2) Where an employee is granted leave under this section, she shall be entitled to receive, on request to her employer, a certificate, in such form as may be determined by regulations -

(a) stating that she has been granted leave for whichever of the reasons in paragraphs (a) to (c) of subsection (1) is appropriate in the circumstances and containing such supplementary information as the regulations may require; and