OCCUPATIONAL HEALTH AND SAFETY CODE
223(1) An employer must provide, at the employer’s expense, the following audiometric tests for a worker exposed to excess noise:
(a) an initial baseline test as soon as is practicable, but not later than 6 months after the worker is employed or within 6 months after a worker is exposed to excess noise because of a change in the worker’s duties or process conditions;
(b) not more than 12 months after the initial baseline test; and
(c) at least every 2nd year after the test under clause (b).
223(2) An employer must ensure that audiometric tests are administered by an audiometric technician who must:
(a) work in consultation with a physician, audiologist or occupational health nurse designated by the employer,
(b) maintain a log book for each audiometer being used that
(i) contains the audiometer’s written calibration records, and
(ii) remains with the audiometer throughout its useful lifetime,
(c) conduct the tests in a location where background noise levels do not exceed those specified in Schedule 3, Table 3,
(d) record the results of the audiometric tests,
(e) provide a copy of the test results to the worker,
(f) retain the records of the audiometric tests for a period of not less than 10 years, and
(g) ensure that the medical history information is under the sole control of the person designated under clause (a).
223(3) If the results of an audiometric test indicate an abnormal audiogram or show an abnormal shift, the audiometric technician must:
(a) advise the worker of the test results,
(b) request the worker to provide, and the worker must provide, relevant medical history, and
(c) forward the results that indicate an abnormal audiogram or an abnormal shift, the medical history, and the baseline audiogram to a physician or audiologist designated by the employer to receive this information.