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
Equivalent training for Hazwoper. 1910.120
Hazard Communication and Consumer Products. 1910.1200
Used Tire Recyclers. 1910.1200
Applicability of the requirements of the Hazard Communication Standard to rubber dust byproduct sold by tire recapping company. 1910.1200
Employees with previous experience and training in the removal of underground storage tanks. 1910.120
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)
Section 17 Designation OSH Act
Actively involved; generators; CERCLA 101(33) substances. 1910.120
The flash point of Bio T products. 1910.106
Motor starter circuits and energy isolation devices 1910.147
OSHA currently accepts U.S. Coast Guard devices approved as a Type I PFD, Type II PFD, Type III PFD or Type V PFD, or their equivalent. 1926.106, 1915.158, 1917.95, 1918.105
The working environment of railroad train operating employees. 1975.1
Confirmation on lockout/tagout, specifically with the standard covering periodic inspections. 1910.147
Determination as to whether ConVault aboveground tanks are required to be diked to comply with the 1910.106(b)(2)(vii) standard on storage of flammable liquids. 1910.106
Lockout/Tagout with regards to the cleanup and sanitizing of machinery and equipment in the meatpacking industry. 1910.147
Committing a de minimis violation when using an insert earphone designated as ER-3A. 1910.95
Grain Handling Facilities Standard. 1910.272
Characteristics of the Quick-Link device for the replacement of tire chain links. 1910.212(a)
The term "wheel chocks" and whether the employment of one chock would satisfy the requirements of the Occupational Safety and Health Administration. 1910.178, 1910.178(k)(1)
Labeling Provisions of the Hazard Communication Standard 1910.1200(f)(6)