Who is required by OSHA to be included in a hearing conservation program?

The correct choice focuses on the specific criteria set by OSHA regarding noise exposure levels that necessitate the inclusion of employees in a hearing conservation program. According to OSHA regulations, employees who are identified as having an 8-hour time-weighted average (TWA) of noise exposure at or above 85 dB(A) are required to participate. This measurement indicates a significant level of auditory risk, as prolonged exposure to such noise levels can lead to hearing loss.

By targeting individuals with this specific exposure threshold, the program aims to protect those at the highest risk and ensure that adequate hearing conservation measures are implemented, such as regular hearing tests, noise monitoring, and provision of hearing protection devices. This focus allows for the effective allocation of resources and preventive measures without extending unnecessarily to all employees, particularly those in administrative roles where noise exposure is typically minimal.