3. In any case where the blood-lead concentration or urinary lead concentration of an employee reaches the appropriate suspension level, the employer shall ensure that an entry is made in the health record of the employee by a relevant doctor certifying whether in the professional opinion of the doctor the employee should be suspended from any work which is liable to expose that employee to lead; where in the opinion of the relevant doctor the employee need not be suspended from such work the entry shall include—
(a)the reasons for that opinion; and
(b)the conditions, if any, under which the employee may continue to be employed in such work.