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
OSHA's Hazard Communication Standard as it applies to the janitorial service industry. 1910.1200
Development of increasing safety use of cranes
Emergency response by fire company and utility workers, and required training. 1910.120
Whether or not OSHA Standard 1910.147, lockout/tagout would apply to motor vehicles. 1910.147
Use of link chains as lanyards and contractor's responsibility to supply safety nets for worker protection 1926.104
The health and safety of employees who work in a State building housing the justice of Peace Courts and which is infested with termites. 1975.3(d)
Eight hours refresher training per year required specific to job responsibilities at a TSDF. 1910.120
Outer Shipping Container Labeling 1910.1200
Training and certification procedures of Hazwoper. 1910.120, 1910.120(q), 1910.120(q)(6)(v), 1910.120(q)(7), 1910.120(q)(8)
Unfavorable Review Commission Decision. 1910.107(b)(5)(iv)
Training requirements for employees in food storage facility where ammonia is used solely as a refrigerant. 1910.120, 1910.120(p)(1), 1910.120(p)(7), 1910.120(p)(8), 1910.120(q), 1910.120(q)(6)(iii), 1910.120(q)(6)(v)
Regulations For Cotton Waste Operations 1910.1000, 1910.1043
Requirements for minimum illumination at construction sites. 1926.56
Program directive on de minimis violations.
Labeling requirements with regard to containers of pesticides 1910.1200
MSDS required with initial shipment of chemicals used in humidification systems in office areas 1910.1200
Thomas E. Baca replacing Millicent Woods on the FACOSH.
Favorable Supreme Court Decision.
Favorable Review Commission Decision.
Favorable Decision in National Engineering & Contracting Co. and Meroe Contracting and Supply v. OSHA.