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
Power Roof Cutter on a Built-up Roof. 1926.1101
Application of OSHA's health standards 1910.1025, 1926.62
Occupational Safety and Health Administration's (OSHA) Hazard Communication Standard (HCS). 1910.1200
Interpretation of the telecommunication standard and the electrical protective equipment standard. 1910.137, 1910.268
Use of toeboards to protect a floor hole and variations in riser heights for stairs. 1910.23, 1910.24
The number of workers necessary to be present when there is a need for an operator to respond to a potential emergency that falls under the scope of the HAZWOPER standard. 1910.120
Occupational Safety and Health Administration's Bakery Equipment Standard. 1910.147, 1910.263
Clarification of Asbestos Standard for construction. 1926.1101
Disinfectant products "D-125" and "Public Places" 1910.1030(d)(4)(ii)(A)
Masonry wall bracing requirements. 1926.706
Distribution of Material Safety Data Sheets. 1910.1200(g)(6)
Crystalline silica exposure for construction and general industry.
Lockout/tagout procedures; training; annual inspection; outside personnel. 1910.147
Proposed revision to the OSHA injury and illness recordkeeping requirements contained in 1904. 1904 - Table of Contents
Interpretation regarding the removal of a recorded case from your 1993 OSHA Log. 1904 - Table of Contents
Requirements for Reporting Health Hazard Information on a Material Safety Data Sheet (MSDS) 1910.1200
OSHA accepts employers' use of the ANSI/IES-RP-7-1991 incorporated by reference or adopted into OSHA standards. 1910.261, 1926.56
Respirator Concerns. 1910.134, 1910.1028
Regulations for Voluntary Rescue and Ambulance Squads. 1975.3
Fire protection during the fueling of mobile equipment. 1926.152