<Table> <Tr> <Td> </Td> <Td> The examples and perspective in this article may not represent a worldwide view of the subject . You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate . (November 2011) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> The examples and perspective in this article may not represent a worldwide view of the subject . You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate . (November 2011) (Learn how and when to remove this template message) </Td> </Tr> <P> Hearing conservation programs are designed to prevent hearing loss due to noise . Regarding occupational exposures to noise, 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 (dB) measured on the A scale (slow response) or, equivalently, a dose of fifty percent ." 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 . </P> <P> The OSHA standard contains a series of program requirements . </P>

When do you need a hearing conservation program