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
The relationship between OSHA standards and the usage of particulate respirators. 1910.1001(g)(3), 1926.1101(h)(3)(iv), 1910.134(d)
OSHA first aid standard. 1910.151, 1910.151(b)
Fire prevention and protection requirements applicable to underground construction. 1926.800
Spray Finishing. 1910.107
Request for Interpretation - 29 CFR 1910.213(f)(2). 1910.213
OSHA's requirements for locking type snaphooks on pole strap systems 1910.23, 1910.67, 1910.269, 1926.502, 1926.556, 1926.959
Grounding requirements with respect to a battery charger used with rechargeable power tools. 1910.304, 1910.307, 1910.399
Scope of logging standard -- 1910.266 1910.132, 1910.138, 1910.242, 1910.266, 1910.269
Use of seat belts on powered industrial trucks. 1910.178
Working conditions at the Jacob K. Javits Center in New York City.
Low urinary creatinine levels. 1910.1027
Determination on whether the "Line Journeyman Changing out Trasformer" activities are within the intent of the OSHA standards. 1910.269
The biological monitoring requirements under the Final Rule for Lead. 1926.62, 1910.1025
OSHA Asbestos Standard. 1910.1001
Fit testing and fit factors for the N-95 respirators for protection against TB exposure. 1910.134
Training requirements for class II roofing work. 1926.1101
Ramps: guarding and means of access to a higher elevation. 1910.23, 1926.1051
Hazard Communications Standard. 1910.1200
The situations under which dry cleaning establishments would be covered by the bloodborne pathogens standard 1910.1030
Clarification of Section 1910.268 Telecommunications. 1910.27, 1910.268