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
Driver training and seat belt use. 1975.1
Blasters Circuit Testers. 1926.906, 1910.109(e)(4)
Request for Interpretation of ANSI B30.11 as it relates to Yale KEL 2-ton chain hoists. 1910.179
Whether additional handrails are required on the grated walkways provided on one side of the 13 belt conveyors. 1910.23(e)(1), 1910.23(c)(2)
Perimeter Guarding Utilizing Wire Rope. 1910.750, 1926.500
Recapping Needles.
Hazard Communication Standard, pertinent to distributors of hazardous chemicals. 1910.1200
Accommodations for CSHOs not meeting the physical examination criteria and Backlog for reviewing CSHO medical records
Incorporation of the Chemical Hygiene Plan (CHP) into current Hazard Communication and/or other related manuals 1910.1450
Feasibility of Guarding ESCO Swaging Presses. 1910.212
Standards regarding overhead protection (ROPS, canopies, etc.) for operators of log skidders. 1910.266
Applicability of the new Electrical Safety final rule, Subpart S, to the construction industry 1910.333, 1910.332, 1910.334, 1910.335
High-Efficiency Particulate Air (HEPA) Filters for Vacuum Cleaning. 1910.1001, 1926.1101
Clarification for Employee Alarm Systems. 1910.165
Coke Oven Emissions 1910.1029
Training not required if employees not likely to be exposed to or participate in emergency response activities. 1910.120
Interpretation of Standards. 1910.252
WordPerfect Style Sheet for the Directive System
Smoking and occupational exposure to asbestos 1910.1001(i)(4), 1926.1101(j)(4)
Construction multi-employer worksites. 1910.12(c), 1926 - Table of Contents, 1926.13, 1926.16