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
09/30/1994	Requirements for emergency eyewashes and showers.	1910.151(c), 1926.50(g)
09/29/1994	HHC as it applies to tank battery.	1910.119
09/29/1994	Occupational Safety and Health Administration's (OSHA) regulations for ozone.	1910.1000, 1910.1200
09/29/1994	Subpart I, and Subpart S requirements as they apply to electrical workers who wear glasses.	1910.133
09/28/1994	A description of a retailer's responsibilities regarding material safety data sheets (MSDSs) and training under the HCS.	1910.1200
09/27/1994	Process Safety Management of Highly Hazardous Chemicals as it may apply to more than 250 pounds thionyl chloride stored on your work site.	1910.119
09/27/1994	Clarification on whether flammable liquids used to mix (1) inks used in printing on aluminum foil and paper and (2) paint used in coating aluminum sheets are covered by the PSM standard.	1910.119
09/21/1994	The paperwork requirement of the Occupational Safety and Health Administration's (OSHA) Hazard Communication Standard (HCS).	1910.1200
09/20/1994	Standard 1910.212 in regards to its applicability to guard an area above the ram/piston on a vertical hydraulic downstroke/trash compactor.	1910.212, 1910.212(a)(3), 1910.212(a)(3)(ii)
09/20/1994	Reclassification of silver inspection services' tank containers.	1910.146
09/19/1994	Elevator industry employees working in and around pits and equipment.	1910.146, 1910.146(c)(1), 1910.146(c)(7), 1910.146(c)(8), 1910.146(c)(8)(i), 1910.146(c)(8)(ii), 1910.146(c)(8)(iii), 1910.146(c)(8)(iv), 1910.146(c)(8)(v), 1910.146(c)(9), 1910.146(d), 1910.146(d)(11)
09/16/1994	Recording and Reporting Deaths, Injuries and Illnesses Resulting from Acts of Workplace Violence.	1904.2
09/16/1994	The relationship between the OSHA standards on Permit-Required Confined Space and Pulp, Paper, and Paperboard Mills	1910.146, 1910.261
09/09/1994	Rescue Equipment Requirements.	1910.146
09/01/1994	The applicability of HAZWOPER emergency response training requirements to workers who change leaking chlorine cylinders in a water treatment facility.	1910.120
08/31/1994	The acceptability of your "FAX-on-demand" system for providing copies of material safety data sheets (MSDS).	1910.1200
08/31/1994	Review and comment on generic labels and consumer information sheets for chromated copper arsenate (CCA) pressure-treated lumber.	1910.1200
08/25/1994	Posting requirements for non-fixed construction sites.	1904 - Table of Contents
08/25/1994	Detector Tube Test Kits.	1910.430
08/24/1994	Interpretation of 29 CFR 1910.142(d)(2) and 1910.142(d)(8) Privies Lighting, Ventilation and Window Space Standards.	1910.142