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
Phototropic lenses in safety eye wear. 1910.133
Methylacetylene-propadiene, stabilized, by definition, is not a liquefied petroleum gas, but is considered as a fuel gas 1926.350, 1926.800
The handling, Storing and Use of MAPP Gas in Underground Construction Work. 1926.155, 1926.800
Clarification of temporary vs. portable lighting. 1926.405(a)(2)(ii)(G)
Rollover Protective Structures on skid-steer loaders used in agricultural operations. 1926.1000(a)(2), 1928.51(b)(1)
Subpart O -- Machinery and Machine Guarding, Mechanical Power-Transmission Apparatus. 1910.219(b)(2)
Approval of first aid kits. 1910.151
"Sankey Toe Caps" instead of safety shoes is acceptable. 1910.132(a)
Clarification of OSHA standards related to logging and tree planting operations. 1910.266
Underwriters Laboratories and Factory Mutual Research Corp. test and list approved containers. 1926.152, 1926.155
Clarification on OSHA requirements for hoist cables on cranes. 1910.179(h)(2)(i)
Loading docks. 1910.23
Clarification on several questions concerning a construction project. 1910 - Table of Contents
An interpretation of 29 CFR 1910.67(c)(2)(v). 1910.67(c)(2)(v)
Safety devices on fixed ladders. 1910.27(d)(5)
Lathes, explosion proof motors and storage tank fill pipes. 1910.106(b)(4)(iv)(e)
The location of adequate toilet facilities. 1910.141(c)(1)(i)
Clarification of requirements for safety latches on lifting hooks. 1910.181(j)(2)(ii)
Clarification on maximum allowable load limits for cranes. 1918.74
1910.179(b)(4) only applies to outdoor storage bridge gantry cranes with spans over 100ft. 1910.179(b)(4)