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
09/25/1995	OSHA's New Fall Protection Standard for the Construction Industry.	1926.500, 1926.451(g), 1926.451(h)
09/25/1995	Requesting OSHA to comment on the Scaffold Industry Association testing procedures to determine fall arrest tie-off locations.	1926 Subpart L
05/24/1995	Scissor lift use requirements.
05/09/1995	Applicability of fall protection requirements/fall protection for waste collection and landfill activities.	1926.500(a), 1926.501(b), 1910 Subpart D, 1910 Subpart I
04/26/1995	Whether or not fall protection is to be used when reinforcing steel is being installed and application of OSHA's job-made ladder requirements to rebar cages.	1926.501(b)(5), 1926.1053, 1926.1053(b)(22), 1926.603(a)(8)
03/27/1995	The new fall protection provisions of Subpart M and their application to various types of aerial lifts	1910 - Table of Contents, 1926 - Table of Contents
03/13/1995	New Fall Protection standards and standards for scaffolds used during dry wall work	1926.451(a), 1926.451(c), 1926.760(a)(1)
12/23/1994	Fall protection during rebar assembly construction.	1926.501
08/22/1994	Guidance to Compliance Officers for Focused Inspections in the Construction Industry.	1926 - Table of Contents
05/25/1994	Chimney platforms and space between the scaffold working edge and the structure.
04/19/1994	Girder Lock Overhang Form System.	1926.451, 1926.550
03/31/1994	Manually operated winch and tripod system used for raising, lowering and supporting employees.	1910.28, 1926 Subpart L
03/18/1994	Stair units manufactured to be used as an integral part of the welded frame scaffolds system.	1926 Subpart X
02/07/1994	Equivalency of "Roof Creeper Kit Apparatus".
02/02/1994	Safety regulations for roof top rolling scaffolds.	1926.451(h)(4), 1926.451(k)(10), 1910.66, 1926.451(a)(3), 1926.451(a)(7), 1910.28(a)(4)
01/27/1994	Demolition regulations do apply to the removal of ceilings and interior non-load bearing walls and partitions	1926.850(a), 1926 Subpart T, 1926 Subpart L
12/27/1993	Fall protection and pipe racks.	1926.502(d)
11/10/1993	Employees working on scaffolds and wearing of protective helmets.	1926.100
09/08/1993	Safety standards for aerial work platforms.
09/03/1993	Secondary wire rope suspension systems.	1926.451(g)(3)(iv)