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
11/24/1987	OSHA is currently considering criteria for recording occupational hearing loss on the OSHA form 200.	1
11/23/1987	The potential hazards associated with the use of horizontal lifelines affixed to two-point suspension (Type T) powered platforms.	1
11/23/1987	Standards applicable to the process of wrapping meat in plastic.	1
11/20/1987	Reduction of noise exposure for metal spray operations.	1
11/20/1987	Applicability of the revised Hazard Communication Standard to the grain industry.	1
11/18/1987	The applicability of General Industry Standards to sign posting operations.	1
11/02/1987	Acceptable guarding for continuous cycling boneless meat tenderizers.	2
11/02/1987	Need to supply a material safety data sheet for oil lubricated compressors.	1
11/02/1987	Compliance advisory on safety requirements for window washing.	0
10/30/1987	Response to a request regarding remedies for airborne pollutants.	1
10/28/1987	Request for a variance from 1910.106.	1
10/28/1987	Work Platforms suspended from Lattice or Hydraulic Crane Booms.	1
10/26/1987	Labeling and MSDSs for a stump router cutter head which has carbide tips on the cutter teeth.	2
10/16/1987	A clarification of requirements for recirculating air discharged from spray operations.	1
10/09/1987	Clarification of Material Safety Data Sheet Requirements Under the Hazard Communication Standard.	1
10/07/1987	Safeguarding of Metal Cutting Do-All Saw at the Norfolk Naval Shipyard.	1
10/05/1987	Additional requirements for distributors from the August 24, 1987 expansion of the HCS.	1
10/01/1987	Appeal's court rules that modular housing assembly will be regulated as manufacturing.	1
10/01/1987	Retention requirements for superseded MSDSs.	1
09/26/1987	Lift Slab Construction.	1