Letters of Interpretation

OSHA requirements are set by statute, standards, and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. Each letter constitutes OSHA's interpretation of the requirements discussed.

Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information.

These letters of interpretation and the standards they address may not apply to OSHA State Plans. State Plans are required to have standards and enforcement programs that are at least as effective as OSHA's and may have different or additional requirements. Please see OSHA-approved State Plans for more information.

NOTICE:

How to Request a Letter of Interpretation

Filters


Date Title Standard Number
Employee noise exposure assessment records are part of audiometric test record. 1910.95
Requirement to make a positive determination of work-relatedness of threshold shift revoked. 1910.95
Noise regulations apply to all places of entertainment. 1910.95
Methods of training for microprocessor audiometer technicians. 1910.95
No time limit from date of annual audiogram to standard threshold shift determination. 1910.95(g)(1)
An electroacoustic ear can be used for daily testing of an audiometer. 1910.95
Positive determination of work-relatedness of standard threshold shift not required. 1910.95(c)
Revisions of hearing conservation standard under consideration applicable to logging industry. 1910.95(c)
Applicability of the noise standard to pulpwood logging. 1910.95
Hearing conservation standard in relation to poultry processing industry. 1910.95(c)
Question of whether the noise standard is adjusted for workshifts greater than 8 hours. 1910.95
Provisions to assure that workers are adequately protected from noise exposure. 1910.95(c)
Variable day to day exposures cannot be averaged for compliance with action level 1910.95(c)
Compliance determination based on worst day noise exposure. 1910.95
Administrative controls and PPE used to reduce exposure below limits if engineering controls are not feasible. 1910.95