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.

Filters


Date Title Standard Number
First Aid Courses 1910.151, 1926.50(c)
Bloodborne diseases pathogens
Mechanical power-transmission apparatus: compliance with current consensus standards. 1910.219
Specification for Lower Blade Guards for Radial Arm Saws 1910.213(h)(1)
Clarification explaining that chest X-rays be retained in their original form. 1910.1020(c)(6)(i)(B), 1910.1020(d)(2)
Clarification of OSHA's Hazard Communication Standard (HCS) as it applies to independent contractors operating in beauty salons. 1910.1200
An engine overhaul work station being developed. 1910.179(n)(3)(vi)
Handling of rejections in IMIS edit checks
Observation of monitoring requirement at 1910.95(f) in the occupational noise exposure standard 1910.95(f)
Requirements relating to spirometry contained in the cotton dust standard at 1910.1043 Appendix D. 1910.1043
The listing requirements in the U.S. for Industrial Packaging equipment. 1910.302, 1910.303(b)(2), 1910.308, 1910.399
Dole v. Steelworkers, Supreme Court decision 1910.1200
Background and experience to be qualified to conduct annual inspections of the bakery ovens required under OSHA standards. 1910.263(l)(9)(ii)
Training requirements under 1910.120 for General firefighters and police officers 1910.120(a)(3), 1910.120(q)(6)
Dealing with ergonomic hazards in the workplace.
State Plan monitoring and evaluation procedures and interim guidelines for monitoring function subject to GAO and OIG recommendations.
Application of the Hazard Communication Standard (HCS) to Independent beauty salon Contractors 1975.3, 1910.1200(b)
Correspondence Sent to the National Office
OSHA Long-Term Training Program - FY 1990-91
The transmittal of material safety data sheets (MSDS). 1910.1200