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.

NOTICE:

How to Request a Letter of Interpretation

Date	Title	Standard Number
11/21/1994	HCS as it relates to the guidelines described in OSHA's 1986 publication regarding disposal of hospital wastes contaminated with cytotoxic drugs.	1910.1030, 1910.1200
11/18/1994	OSHA's Hazardous Waste Operations and Emergency Response Standard.	1910.120
11/17/1994	Interpretation for treated wood products in regards to paragraphs (f)(2)(i)-(iii) of the HCS	1910.1200
11/16/1994	Material Safety Data Sheet (MSDS) requirements for coatings on automobile parts that will be sanded and cut.	1910.1200
11/16/1994	Medical clearance for respirator wearers in emergency response situations.	1910.120
11/08/1994	Clarification on HAZWOPER emergency response training requirements.	1910.120
10/11/1994	Container labelling requirements.	1910.1200
10/11/1994	The acceptability of a computer based, self-paced training program for use in meeting the refresher training requirements of the standard.	1910.120
10/06/1994	Labelling, training and material safety data sheet and the Hazard Communication standard.	1910.1027, 1910.1200
09/29/1994	Occupational Safety and Health Administration's (OSHA) regulations for ozone.	1910.1000, 1910.1200
09/28/1994	A description of a retailer's responsibilities regarding material safety data sheets (MSDSs) and training under the HCS.	1910.1200
09/21/1994	The paperwork requirement of the Occupational Safety and Health Administration's (OSHA) Hazard Communication Standard (HCS).	1910.1200
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	Review and comment on generic labels and consumer information sheets for chromated copper arsenate (CCA) pressure-treated lumber.	1910.1200
08/31/1994	The acceptability of your "FAX-on-demand" system for providing copies of material safety data sheets (MSDS).	1910.1200
08/24/1994	Application of OSHA's Hazardous Waste Operations and Emergency Response (HAZWOPER) standard to employers of news media personnel who are covering emergency response incidents.	1910.120
08/05/1994	The list of hazardous chemicals are required under 1910.1200.	1910.1200
07/28/1994	HAZWOPER refresher training requirements.	1910.120
07/15/1994	The coverage of household products in a small group home.	1910.1200
07/07/1994	Management and supervisors' training required in paragraph (e)(4) of the standard.	1910.120