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Compensation for Occupational Injuries and Diseases Act, 1993 (Act No. 130 of 1993)

Circular Instructions

Circular Instruction No. 171 - Determination of Permanent Disablement resulting from Exposure to Excessive Noise and Trauma in Industry

3. Monaural Hearing Impairment


3.1 Noise-induced hearing loss affects both ears to more or less an equal degree and the impairment is due to a perceptive loss. If, therefore, the loss of hearing is monaural, it must be assessed whether the loss is commensurate with noise exposure to one ear more than the other such as gun shots in security workers. The assessment of permanent disablement for the loss of hearing in one or both ears as detailed takes cognisance of such additional factors as tinnitus, unhealed perforations of the tympanic membranes with possible recrudescence of infections following thereon and/or mastoidectomies. In the event of recurring infections in the two latter instances, medical treatment should be provided and the employee should receive periodical payments.