An employer must ensure that -
- copies of the audiograms are entered into the employee’s record of medical surveillance;
- a copy of each audiogram is given to the employee when he
or she leaves the employment of that employer;
- new employees provide him or her with their baseline audiograms, exit audiograms or most recent audiograms and the percentage of loss of hearing calculated in accordance with Instruction No. 171; and
- in the case of an employee whose percentage loss of hearing has deteriorated by 10% or more since the baseline audiogram was recorded or an employee for whom no baseline audiogram is available but who has a 10% or more loss of hearing that is not obviously due to medical causes, and that has been confirmed by a repeat audiogram -
(i) the health and safety committee or representative is informed of the finding;
(ii) the employee is retrained and re-instructed;
(iii) noise control measures are reassessed; and
(iv) such hearing loss is reported to the provincial director, on form WCL1/2.