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
09/20/1993	Personal protective equipment, general requirements and employer responsibility.	1910.132
09/17/1993	"Eyelet" and "four-slide" machines are covered by 1910.212.	1910.212
09/17/1993	Use of microwave systems to convert regulated waste into waste free of biohazardous material.	1910.1030
09/17/1993	Clarification of OSHA Policy on Employer Abatement Assistance.	1903.19
09/15/1993	OSHA does not approve or endorse products.	1910.1030
09/13/1993	Requirement of name, address and telephone number on an MSDS.	1910.1200
09/13/1993	FDA regulated drugs that pose a hazard would be covered by the HCS.	1910.1200
09/13/1993	OSHA does not regulate the outer shipping container of hazardous material.	1910.1048
09/10/1993	Location and maintenance of OSHA injury and illness records.	1904 - Table of Contents
09/09/1993	Movement of compressed gas cylinders with regulators installed and "special truck" requirement	1910.253
09/09/1993	Applicablility of the lockout/tagout standards.	1910.333, 1910.147, 1910.269
09/09/1993	Processes involving flammable liquids and gases.	1910.119
09/09/1993	Christmas Treeing.
09/09/1993	Interpretation of the word "close".	1910.110(b)(14)(i)
09/09/1993	HHCs as it applies to Hydrogen Peroxide delivered from a tank truck.	1910.119
09/09/1993	Employee alarm systems.	1910.165(b)(5)
09/09/1993	Qualified employee requirements for the servicing and maintenance of electrical equipment.	1910.332(a), 1910.333(b), 1910.333(c)(2), 1910.334(c)(1)
09/08/1993	Delivery of hydrogen peroxide, 52% by weight or greater.	1910.119
09/08/1993	Safety standards for aerial work platforms.
09/07/1993	Requirement for additional employee training whenever new hazards are identified.	1910.1200