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.

Date	Title	Standard Number
05/13/1980	A tie-off system is acceptable where a standard guardrails are not feasible	1910.23(c)(1)
04/29/1980	Cable Type Jib Stops.	1926.550
04/24/1980	Pressurization of 55 gallon drums for use with urethane foam dispensing equipment.
04/21/1980	Requirements for employee notification of exposure monitoring results under the lead standard.	1910.1025
04/18/1980	Personnel Hoist and Boatswain's Chairs.	1925.451(l)(4)(5), 1926.552(c)
04/17/1980	Barricade in accessible areas of the rear of the rotating structure of the crane secured to the under carriage.	1926.550(a)(9)
04/17/1980	Seat belt usage requirement.	1926.602
04/16/1980	Employees must be paid for travel time for medical examination under the inorganic arsenic standard.	1910.1018(n)(1)(ii)
04/14/1980	The access to tanks or pressure vessels.	1910.106
04/07/1980	Medical examination requirements of the inorganic arsenic standard.; Respirator fit testing requirements of the inorganic arsenic standard.	1910.1018(n)(1)(ii), 1910.1018(n)(2)(ii)(A)
03/31/1980	OSHA's requirements for scissor lifts.	1910.67
03/21/1980	Interpretation on testing requirements for grouted tunnel rock bolts	1926.800(h)(2)(iii)
03/05/1980	Evaluation of hair pen point of operation guards	1910.217(c)(1)(i)
02/28/1980	Controlled descent devices.	1926.951(b)(4)(ii)
02/21/1980	Kelly Bushings on Oil Well Drilling Rigs	1910.212(a)(1), 1910.212(a)(2)
02/20/1980	Recordkeeping requirements for medical removals made pursuant to the lead standard.	1910.1025(k), 1910.1025(n)(3), 1904 - Table of Contents
02/18/1980	Citing of Reversed Polarity.	1910.309
02/06/1980	Steel Bandings as Guardrails.	1926.500(f)(1)(vi)
02/03/1980	Clothing lockers must prevent cross contamination of street clothes.	1910.1029(i)(1)
01/24/1980	Carbon Monoxide Alarm/Monitoring at Abrasive Blasting Operations.	1910.94, 1910.134

Letters of Interpretation

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