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
Container labeling of non-pesticide agrichemical products packaged for shipment 1910.132(d), 1910.1200, 1910.1200(f)(1)
HCS labeling of imports and exports 1910.1200, 1910.1200(b)(4), 1910.1200(f)(1), 1910.1200(f)(6)
Clarification of 'at least every 12 months' annual crane inspection requirement. 1926.1412(f)(1)
Guarding requirements for 50 volts or more DC. 1910.303(g)(2)(i)
Guarding energized equipment at voltages below 60 volts DC. 1910.303(g), 1910.303(g)(2)
Labeling of small containers in the laboratory 1910.1200(f)(6), 1910.1200(f)(6)(i), 1910.1200(f)(6)(ii), 1910.1450(e), 1910.1450(h)(1)
Use of 1994 HCS labels on containers packaged for shipment 1910.1200, 1910.1200(j)(2)
Hazard communication pictograms; single color and economic feasibility 1910.1200(f), 1910.1200 App C
Hepatitis B Virus Antibody Testing 1910.1030(f)
Respirator Requirements During Wet Abrasive Blasting 1910.94(a), 1926.57(f)
The requirements for reporting safety data sheet (SDS) information under the Hazard Communication Standard 1910.1200
Hazard communication effective dates and labels 1910.1200(j), 1910.1200(f)
Lockout of tagout requirements for electrical hazards 1910.333(b)
Lockout/tagout of electrical hazards by workers who install, maintain, repair or replace premises wiring systems. 1910.147(a), 1910.147(c), 1910.147(f), 1910.333(b), 1910.333(c)
Hazard communication 2012-compliant labels and safety data sheets on shipped containers of hazardous chemicals 1910.1200(f)(6), 1910.1200(g)(6)(iv)
Hazard communication effective dates and SDSs 1910.1200(j), 1910.1200(g)(1), 1910.1200(g)(6)(iv), 1910.1200(g)(8)
Selecting protective clothing based on the IEEE National Electrical Safety Code, C-2, 2012, Table 410-1 1910.269(l)(8), 1910.269(l)(8)(ii), 1910.269(l)(8)(v), 1926.960(g)(2), 1926.960(g)(5)
Requirements for protective clothing and equipment in the Electric Power Generation, Transmission and Distribution Standard. 1910.269, 1910.269(l), 1910.269(l)(8), 1910.269 App E, 1926 Subpart V, 1926.960(g), 1926.960(g)(2), 1926.960(g)(5), 1926 Subpart V App E
Use of kinesiology tape is not considered medical treatment beyond first aid. 1904 - Table of Contents, 1904.7
Requirements for the use of flexible cords and cables. 1910.305(g), 1910.305(g)(1)(i), 1910.305(g)(1)(ii), 1910.305(g)(1)(iv)