An employer must ensure that the medical surveillance contemplated in subregulation (1) consists of-
(a) in the case of a new employee, an initial health examination before the employee commences employment or within 30 days of commencement of such employment;
(b) a periodic health examination informed by the ergonomic risk assessment, at intervals specified by an occupational medicine practitioner, but not exceeding two years; and
(c) an exit health examination informed by the ergonomic risk assessment.