Final answer:
The action level for occupational noise exposure is 85 decibels (dB), after which employers need to take steps to ensure the hearing protection of their employees for an 8-hour exposure.
Step-by-step explanation:
The "action level" for occupational noise exposure is 85 decibels (dB). Employers must take action to protect the hearing of their employees when noise levels exceed this threshold for an 8-hour daily exposure.
This involves implementing hearing conservation programs, such as providing hearing protection like earplugs or earmuffs, conducting regular hearing screenings, and offering training about the risks of noise exposure and the importance of hearing protection.