(1)  A health and safety representative for a work group may exercise powers and perform functions under this Act only in relation to matters that affect, or may affect, workers in that group.

(2)  Subsection (1) does not apply if –

(a) there is a serious risk to health or safety emanating from an immediate or imminent exposure to a hazard that affects or may affect a member of another work group; or

(b) a member of another work group asks for the representative's assistance –

and the health and safety representative (and any deputy health and safety representative) for that other work group is found, after reasonable inquiry, to be unavailable.

(3)  In this section –

another work group means another work group of workers carrying out work for a business or undertaking to which the work group that the health and safety representative represents relates.