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
First Aid supplies required by businesses 1910.151(b)
Negative Pressure Glovebag Usage in Asbestos Removal 1910.1001
Product endorsement policy and telephone headsets. 1910.95, 1910.7
Portam Process asbestos abatement equipment use for asbestos removal. 1926.1101, 1926.1101(e), 1926.1101(g)(5)(i)
OSHA's Hazard Communication Standard. 1910.1200
Safety Jurisdiction Over Refitted Propane Tanks Used to Store Malodorant Agents at Pipeline Facilities.
Trailer mounted vacuum system and bagging station used in asbestos abatement. 1926.1101(e)
OSHA'S Occupational Exposure to Lead Standard. 1910.1025
Training requirements for hazardous materials technicians and on- scene incident commanders. 1910.120(q)(6)
Medical surveillance requirements of the formaldehyde standard 1910.1048(l)
Laboratory Standard does not cover routine tests supporting production but non-routine, non-production-related tests are covered 1910.1450
Hemox Safe Deposit system for needles and syringes used with bloodborne pathogens 1910.1030
Distribution of free copies of 29 CFR 1910 and 1926
Limitation on Enforcement of Certain Subsections of the Excavation Standard. 1975.1, 1926.651(g)(1)(iii), 1926.651(g)(2)(i)
OSHA's Hazard Communication Standard. 1910.1200
Considerations for "incidental" spills cleaned up by maintenance personnel to satisfy the definition of "emergency response" 1910.120(a)(3)
South Carolina's state policy on payment for hepatitis B vaccine
Removal activities involving underground storage tanks. 1910.120
Applicability of Field Sanitation Standard to Reforestation Activities. 1928.110
Interpretation of "high degree of acute toxicity" under the laboratory standard 1910.1450(e)(3)(viii), 1910.1450(b)