Where exposure to airborne lead is in excess of half the OEL for lead, an employer contemplated in regulation 2(1) shall ensure that the measurement programme of the airborne concentrations of lead to which an employee is exposed, is
(a) carried out in accordance with these Regulations;
(b) carried out only after the relevant health and safety representative or relevant health and safety committee has been informed thereof and given a reasonable opportunity, as mutually agreed upon, to comment thereon;
(c) carried out by-
(i) an approved lead inspection authority; or (ii) a person whose ability to do the measurements is verified by an approved lead inspection authority;
(d) representative of the exposure of employees to airborne lead in accordance with subregulation (2); and
(e) verified in accordance with subregulation (3) if the measurements are carried out by a person contemplated in subregulation (1)(c)(ii).