(a)
the hearing test results for each employee, and the results shall
(i)
be kept as long as the employee is employed by the employer,
(ii)
be made available to an officer on request, and
(iii)
be kept confidential and not released to anyone other than an officer without the written permission of the employee, or as otherwise required by law,
(b)
the instruction and training provided by the employer to employees concerning the hazards of excessive exposure to noise and the correct use of control measures and hearing protective equipment, and
(c)
the noise level measurements taken in accordance with section 29.