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Hearing conservation programs are designed to prevent noise induced hearing loss. A written hearing conservation program is required by the Occupational Safety and Health Administration (OSHA) “whenever employee noise exposures equal or exceed an 8-hour time-weighted average sound level (TWA) of 85 decibels measured on the A scale (slow response) or, equivalently, a dose of fifty percent.” 〔29 CFR 1910.95(c)(1)〕 This 8-hour time-weighted average is known as an exposure action value. While the Mine Safety and Health Administration (MSHA) also requires a hearing conservation program, MSHA does not require a written hearing conservation program. MSHA’s hearing conservation program requirement can be found in ( 30 CFR § 62.150 ), and requires has almost the same exact requirements as the OSHA hearing conservation program requirements. Therefore, only the OSHA standard 29 CFR 1910.95 will be discussed in detail. ==Program requirements== The OSHA standard contains a series of program requirements. *Engineering Controls: 29 CFR 1910.95(b)(1) requires that “feasible administrative or engineering controls shall be utilized. If such controls fail to reduce sound levels…personal protective equipment shall be provided and used to reduce sound levels…” *Monitoring: 29 CFR 1910.95(d) requires that monitoring be conducted when “any employee’s exposure may equal or exceed an 8-hour time-weighted average of 85 decibels. *Testing: 29 CFR 1910.95(g) requires an “audiometric testing program” for “all employees whose exposures equal or exceed an 8-hour time-weighted average of 85 decibels”. *Hearing Protectors: 29 CFR 1910.95(i) states that “employers shall make hearing protectors available to all employees exposed to an 8-hour time-weighted average of 85 decibels or greater at no cost to the employees” *Training: 29 CFR 1910.95(k) mandates an annual “training program” for “all employees who are exposed to noise at or above an 8-hour time-weighted average of 85 decibels…” and mandates certain aspects of the training that must be included. This includes the effects of noise on hearing; purpose, advantages, disadvantages, and attenuation of different types of hearing protectors; purpose audiometric testing. * Record Keeping: 29 CFR 1910.95(m) states that employers “shall maintain an accurate record of all employee exposure measurements…” 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「hearing conservation program」の詳細全文を読む スポンサード リンク
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