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
Used Tire Recyclers. 1910.1200
Hazard Communication and Consumer Products. 1910.1200
Decision or policy statement regarding the obligations and responsibilities of the employee leasing industry with respect to compliance with the Occupational Safety and Health Act. 1910.1200, 1910.1030, 1910.178(l)
Labeling Provisions of the Hazard Communication Standard 1910.1200(f)(6)
Regarding warning labels under OSHA's Hazard Communication Standard. 1910.1200
The Hazard Communications Standard as it applies to employees who prepare and administer drugs/medications 1910.1200
Hazard communication in construction - general contractor responsibilities. 1910.1200
Training required for clean-up of hazardous waste and hazardous substances 1910.120, 1910.1200
OSHA's Hazard Communication Standard as it applies to the janitorial service industry. 1910.1200
Outer Shipping Container Labeling 1910.1200
MSDS required with initial shipment of chemicals used in humidification systems in office areas 1910.1200
Labeling requirements with regard to containers of pesticides 1910.1200
Regarding labeling requirements of the OSHA's Hazard Communication Standard. 1910.1200
MSDS requirements for scrap materials 1910.1200(g)
Emergency response in the trucking industry 1910.120, 1910.1200, 1910.120(q)(1), 1910.120(q)(3)(vii), 1910.120(q)(3)(iv), 1910.120(q)(6), 1910.38, 1910.1200(h)
Enforcement of the Hazard Communication Standard as it relates to "vegetable oil mist" 1910.1200, 1910.1000 TABLE Z-1
Training requirements for post-emergency response operations 1910.120(q)(11)(ii), 1910.1200
Applicability of 1910.120(p)(2) to a RCRA TSD hazardous waste site handling PCB's 1910.120(p)(2), 1910.1200(b)(6)(i)
Maintenance employees having regular duties in permitted areas are covered by 1910.120(p) 1910.120(p), 1910.1200
Label requirements for crystalline silica 1910.1200(f)