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
The correct testing procedure for tree-trimming saddle belts 1910.132
Negative pressure respirators unacceptable for isocyanate paints. 1910.134
Use of roof top rolling outriggers used for swinging scaffolds. 1926.451(a)(2)
The employer shall make the appropriate safety footwear available. 1910.266, 1910.132
Installation of a single stroke mechanism on full revolution mechanical power presses. 1910.217
The safety of divers. 1910.401, 1926.1071
Use of dis-similar metals on tube and couplar scaffolds. 1926.451
Pneumatic tools must be designed and used in accordance with good engineering practices 1926.302
Clarification of the intent of 29 CFR 1926.905(h) and (k). 1926.905
Removing synthetic web slings from service. 1910.184(i)(9), 1910.184(i)(8)
Question of whether the noise standard is adjusted for workshifts greater than 8 hours. 1910.95
Sky Genie Boatswain's Chair System. 1926.451
Public Law 91-596 pertains to workplace safety and health, and requires employers to provide employment free of recognized hazards and to comply with OSHA's regulations. 1910.212
Clarification of Power Platforms for Exterior Building Maintenance. 1910.66, 1910.28
Letter concerning the minimum width of access to equipment. 1910.73
Fasteners used in tools shall be only those specifically manufactured for use in such tools. 1926.302
The "Power Shift" Model Caterpillar Track Tractors Operating on Inclines in Excess of 30 Degrees Above the Horizontal Plane may Become Hazardous. 1910.267
Request for Interpretation on Applicability of Standards to Water Well Drilling 1910 - Table of Contents
Use of skin diving hood under respirator for bearded employee unacceptable. 1910.134(e)(5)(i)
An interpretation of OSHA Instruction CPL 2-1.4, Information on Grain Elevator Inspections.