In order to comply with subregulation (1), an employer shall ensure that-
(a) an initial medical examination comprising of the following is carried out immediately before or within 14 days after a person commences employment:
(i) An evaluation of the employee's medical and occupational history;
(ii) clinical examinations; and (iii) in the case of lead other than tetra-alkyl lead, measurement of the employee's blood lead and haemoglobin concentrations and other relevant biological tests at the discretion of the occupational medicine practitioner: Provided that the measurement of blood lead concentrations shall be repeated during the third and the sixth month after commencement of employment: Provided further that when monitoring of zinc protoporphyrine (ZPP) in blood expressed in ZPP/g haemoglobin is performed at intervals not exceeding two months, only annual blood lead concentration measurements are required;
(b) subject to the provisions of subregulation (2) (a)(iii), biological monitoring consisting of the following is carried out:
(i) Measurement of blood lead concentration for employees exposed to lead other than tetra-alkyl lead, at intervals as prescribed in the Table contained in Annexure A to these Regulations: Provided that in the case of female employees who are capable of procreation, all such measurements are carried out at three-monthly intervals; (ii) immediate measurement of urinary lead concentration for employees exposed to tetra-alkyl lead and thereafter at intervals as prescribed in the Table contained in Annexure B to these Regulations; (c) clinical examinations and relevant biological tests are carried out at the discretion of the occupational medicine practitioner; (d) where the blood lead concentration of an employee exposed to lead other than tetra-repeated, and if the result of the repeated test corrected for the haematocrit value, with reference to a standard value of 43 % for men and 38 % forunfit for work in an area where he or she is exposed to lead: Provided that the occupational medicine practitioner, if he or she deems it necessary, may /100 mℓ to be unfit for work in an area in which he or she is exposed to lead: Provided further that the removal blood lead level of 60 μg /100 mℓ may be phased-in by reducing the level from 80 μg /100 mℓ to 75 μg /100 mℓ with effect from 30 June 2002, and then by a further 5 μg /100 mℓ every twelve months thereafter in order to reach 60 μg /100 mℓ by 30 June 2005, as depicted in the Table contained in Annexure C to these Regulations; (e) where the urinary lead concentration of an employee exposed to tetra-alkyl lead is equal to or greater than 150 μg/ℓ the test is repeated, and if the result of the repeated test is greater that 150 μg/ℓ that the employee is certified to be unfit for work in an area in which he or she is exposed to lead: Provided that the occupational medicine practitioner, if he or she deems it necessary, may certify an employee who has a urinary lead concentration of less than 150 μg /ℓ to be unfit for work in an area in which he or she is exposed to lead; and (f) where the ZPP value in the blood of an employee who is exposed to lead other than tetra-alkyl lead, is equal to or greater than 10 μg ZPP/g haemoglobin, the blood lead shall be measured as contemplated in subregulation 2(d): Provided that the occupational medicine practitioner, if he or she deems it necessary, may certify an employee who has a ZPP value of less than 10 μg/g haemoglobin, but higher than 8 μg ZPP per gram haemoglobin in his or her blood, to be unfit for work in an area in which he or she is exposed to lead.