Occupational Noise Exposure

Noise is a harmful physical agent and one of the most pervasive health hazards in mining. Repeated exposure to high levels of sound over time causes occupational noise-induced hearing loss (NIHL). NIHL is a serious, often profound physical impairment for miners, with far-reaching psychological and social effects. NIHL can be distinguished from aging and other factors that can contribute to hearing loss and it can be prevented. According to the National Institute for Occupational Safety and Health (NIOSH), NIHL is among the "top ten" leading occupational illnesses and injuries. For many years, NIHL was regarded as an inevitable consequence of working in a mine. Mining, an intensely mechanized industry, relies on drills, crushers, compressors, conveyors, trucks, loaders, and other heavy-duty equipment for the excavation, haulage, and processing of material. This equipment creates high sound levels, exposing machine operators as well as miners working nearby to occupational noise that can contribute to hearing loss. MSHA, the Occupational Safety and Health Administration, the military, and other organizations around the world have established and enforced standards to reduce the loss of hearing. Quieter equipment, isolation of workers from noise sources, and limiting the time workers are exposed to noise are among the many well-accepted methods that will prevent NIHL. Records of miners’ exposures to noise are necessary so that mine operators and MSHA can evaluate the need for and effectiveness of engineering controls, administrative controls, and personal protective equipment to protect miners from harmful levels of noise that can result in hearing loss. However, the Agency believes that extensive records for this purpose are not needed. Instead, the requirements are a performance-oriented approach to monitoring. Records of miners’ hearing examinations enable mine operators and MSHA to ensure that the controls are effective in preventing NIHL for individual miners. Records of training are needed to confirm that miners receive the information they need to become active participants in hearing conservation efforts.

The latest form for Occupational Noise Exposure expires 2022-01-31 and can be found here.