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 guarding requirements for riveting machines. 1910.212
Clip-on Side Shields. 1910.133(b)(2)
Clarification of the Standards and terminology used in relation to maintenance-of-way for electric utility line. 1910.309
Flammable and Combustible Liquids. 1910.106
OSHA regulations governing the use of personal protective equipment. 1910.132(a), 1926.95(a), 1915.152(a)
Accessibility of a hospital or physician in terms of distance and travel time. 1926.50(c)
Floor Loading Signs. 1910.22
Clarification of Difference Between 1910.106 and 1926.152. 1910.106, 1926.152
Dipping and coating operations standard applies to liquids with a 380 degree flashpoint. 1910.123, 1910.124, 1910.125, 1910.126
Powered Industrial Trucks. 1910.178
Planking shall be 2 inch full size undressed. 1926.750
Liquified Petroleum Gases. 1910.110
Displeasure with the procedures utilized by OSHA. 1910.212, 1910.217
Hoisting devices known as "elevators" on well drilling rigs. 1926.552
Clarification Paint Spray Booth and Spray Areas. 1910.94, 1910.107, 1910.308, 1910.309
Disabled (vision impaired) forklift operators. 1910.178
Enforcement of 1910.27 Fixed Ladders. 1910.27
Low-pressure cylinders which are subject to hydrostatic testing. 1910.166
Proposed modifications to the Biro All-Purpose Cutter. 1910.212
Structural steel connector used to tie off. 1926.550