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
Applicability of the Benzene Standard and respirator requirements for bulk gasoline storage facilities. 1910.1028
Use of Oxygen for Decompression Underground Tunnel Workers. 1926.803
Cyanide Antidote Kits
Procedural policy regarding elevated work platforms suspended from cranes or derricks used in general industry applications. 1910.28
Office workers routinely performing short clean up procedures using chemicals covered by the HCS. 1910.1200
Application of 29 CFR 1910.106 and/or NFPA 30-1987 to Flammable Liquid Storage and Dispensing Operations of Polyester Resin 1910.106
Material Safety Data Sheet Requirements Under the Hazard Communication Standard. 1910.1200(g)
Employers are responsible for training new employees on the HCS 1910.1200(h)
Articles such as styrofoam and white-out exempt from HCS requirements in florist shops. 1910.1200(b)(6)(iv)
Retraining employees who have been previously trained by another employer. 1910.1200(h)
Medical examinations for employees exposed to Chromic Acid. 1910.124(h)
OSHA training requirements for volunteer fire company personnel. 1910.156
Protective eyewear in clear, dark green, gray and amber tints, is in compliance with 1910.133(b)(2). 1910.133(b)(2)
Protective eyewear bearing the Gentex Omnibird logo is in compliance with 1910.133(b)(2). 1910.133(b)(2)
Material safety data sheets for liquid plant food. 1910.1200(g)
Applicability of the HCS to alpha-alumina 1910.1200(d)
Temporary Labor Camp Standard regarding range production of livestock. 1910.142
Definition of "distributor" and "retail distributor" as used in paragraph 29 CFR 1910.1200(g)(7). 1910.1200(g)(7)
The rated capacity of alloy steel chain slings. 1910.184
The employer must provide the 1910.1200 verbal training in a language that is comprehensible. 1910.1200(h)