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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Date	Title	Standard Number
06/13/1994	Clarification of the terms "direct staring" and "incidental observing".	1926.54(j)
06/10/1994	Decontamination of a plush carpet surface after a spill.	1910.1030, 1910.1030(d)(4)(ii)(A)
06/09/1994	HHC's as it applies to hydrochloric acid, hydrofluoric acid, hydrogen sulfide, hydrogen cyanide.	1910.119
06/06/1994	Fall protection for steel erection and the requirements for lifting tandem loads.	1926.550
06/03/1994	HHC's as it applies to exterior, interior tanks.	1910.119
06/02/1994	Highly Hazardous Chemical's anhydrous ammonia (NH(3)).	1910.119
06/01/1994	Applicability of OSHA's PRCS standard to gas industry.	1910.146, 1975.1
06/01/1994	HHC standard as it applies to threshold quantity.	1910.119
06/01/1994	Use of davit arm system for hoisting personnel.	1915.116
05/26/1994	The Reporting of Fatality of Multiple Hospitalization Incidence.	1904.8
05/26/1994	Fall Protection Plans in New Subpart M (1926).	1926 Subpart M
05/25/1994	Respirator Exhalation Valve Leakage.	1910.134
05/25/1994	Worker's Compensation Laws and the OSHA recordkeeping requirements.	1904 - Table of Contents
05/25/1994	Chimney platforms and space between the scaffold working edge and the structure.
05/25/1994	Highly Hazardous Chemicals, types of hardware that see contact with explosives.	1910.119
05/25/1994	Permit-required confined space standard does not apply where DOT/OPS regulations apply to working conditions.	1910.146
05/24/1994	Natural fabrics and synthetic materials that are acceptable under the electric power generation, transmission and distribution standard.	1910.269
05/23/1994	OSHA's does not enforce the physical qualification requirements of ANSI standards.	1910.6
05/20/1994	The standard does not mandate that tag lines must be used every time a load is being moved.	1926.751
05/19/1994	OSHA regulation requiring foot protection for employees exposed to falling object hazards.	1926.95