Letters of Interpretation | Occupational Safety and Health Administration

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.

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How to Request a Letter of Interpretation

Date	Title	Standard Number
08/17/1994	Materials used for constructing guardrails.	1926.702
08/17/1994	OSHA standard addressing the materials used for constructing guardrails.	1926.702
08/12/1994	Specifications for rubber insulating gloves based on ASTM standard.	1910.137
08/12/1994	Applicability of the bloodborne pathogens standard to tag attachment devices in garment industries.	1910.1030(a), 1910.1030(b), 1910.1030(c)(2)
08/12/1994	Lockout/tagout procedures, including work permits and groups of machines/equipment.	1910.147(c)(4), 1910.333(b)(2)
08/11/1994	Requirements for emergency eyewash stations in retail autoparts stores	1910.132, 1910.133, 1910.151, 1910.303, 1910.307
08/11/1994	Permit-required confined spaces.	1910.146
08/11/1994	Interpretation on the Cadmium Standard with Respect to Interpreting Air Sampling Data for Establishing Acceptable Work Areas for Medically Removed Workers.	1910.1027
08/11/1994	Construction vs. Maintenance.	1926.32, 1910.12
08/11/1994	Presence sensing devices (PSDs) for power presses	1910.217(c)(3), 1910.303(a)
08/08/1994	Permit space entry	1910.146, 1910.268, 1910.269
08/08/1994	A crane may be used for rated load testing of below-the-hook lifting device provided the test does not exceed 125% for the crane's rated load.	1910.179
08/08/1994	Wedge Sockets Wire Rope Clips (Piggy-Back Clip).	1926.800
08/08/1994	Process Safety Management of Highly Hazardous Chemicals standard as it may apply to the batch chemical processes.	1910.119
08/05/1994	The list of hazardous chemicals are required under 1910.1200.	1910.1200
08/05/1994	Authorized employees and periodic lockout/tagout inspections.	1910.147
08/04/1994	Clarifications of the OSHA standards, 29 CFR 1910.109 and 29 CFR 1910.119.	1910.109, 1910.119
08/04/1994	Requirement for safety nets for steel erection.	1926.105(a)
08/04/1994	Training material for first aid and CPR training.	1910.151
08/02/1994	OSHA Regulation 1910.1030 and the Applicability to Electric Utilities.	1910.1030