CAOHC CAOHC - Council for Accreditation in Occupational Hearing Conservation Hearing Conservation Program Administration Questions and Answers 2

Question 1

What does the acronym TWA represent in the context of occupational noise exposure measurement?

Accepted Answer

Time-Weighted Average

Answer

TWA stands for Time-Weighted Average, representing a worker's average noise exposure normalized to an 8-hour workday.

Question 2

What is OSHA's action level for noise exposure that triggers mandatory hearing conservation program enrollment?

Accepted Answer

85 dBA TWA

Answer

OSHA's action level is 85 dBA TWA, at which point employers must enroll workers in a hearing conservation program.

Question 3

What is the Permissible Exposure Limit (PEL) for noise under OSHA's General Industry Standard (29 CFR 1910.95)?

Accepted Answer

90 dBA TWA

Answer

OSHA's PEL for occupational noise in general industry is 90 dBA as an 8-hour time-weighted average.

Question 4

Which OSHA standard governs occupational noise exposure requirements for general industry employers?

Accepted Answer

29 CFR 1910.95

Answer

29 CFR 1910.95 is OSHA's Occupational Noise Exposure standard for general industry, outlining all HCP requirements.

Question 5

Within how many days of an STS determination must an employer notify the affected employee?

Accepted Answer

Within 21 days

Answer

OSHA requires employers to notify workers of a standard threshold shift determination within 21 days.

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