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
05/18/1992	Bloodborne Pathogen standard as it applies to gloves used as personal protective equipment.	1910.1030
05/18/1992	OSHA's regulations apply only to employer-employee relationship and not to employer activities that can affect the general public.	1926.52
05/18/1992	Step extensions for hook-on ladders
05/18/1992	Persons employed in the logging industry.	1910.266
05/15/1992	Flatwork ironers.	1910.264
05/15/1992	MSDS requirements in the workplace.	1910.1200
05/14/1992	Inspection of chemical accidents.	1910.119
05/13/1992	Refresher training, supervisor training and the hazardous waste standard.	1910.120
05/13/1992	Chicago Regional Instruction STD 3-9.1
05/13/1992	Waste Isolation Pilot Plant in New Mexico.	1910.120(q)
05/12/1992	Heavy-duty pipe, valves and fittings must be used between digesters and blow pits.	1910.261
05/12/1992	Ladderway floor openings.	1910.23
05/12/1992	Bloodborne Pathogen standard as it relates to extracted teeth.	1910.1030
05/12/1992	Bloodborne Pathogen standard as it relates to care facilities for the mentally retarded.	1910.1030
05/11/1992	Post closure operations and maintenance activities; training requirements of HAZWOPER.	1910.120
05/11/1992	Hazards associated with drilled foundation activities.	1926.650, 1926.550(g)
05/08/1992	Interface of 1910.120 and other standards.	1910.120, 1910.38(a)
05/06/1992	Bloodborne Pathogen standard as it applies to personal protective equipment.	1910.1030
05/05/1992	Excavation standards relating to aluminum rail.	1926.652
05/05/1992	Transportation of compressed gas chambers	1926.350, 1926.800