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
04/02/1998	Brake design requirements for baking equipment.	1910.263
04/02/1998	Tying or guying of supported scaffolds.	1926.451(c)(1)(i)
03/27/1998	Fire retardant PPE requirements and PPE hazard assessment.	1910.132, 1910.1029(h)(1), 1910.272 App A
03/27/1998	Special emphasis program for silicosis.	1910.1000, 1926.55
03/25/1998	Protective equipment for formaldehyde exposure	1910.1048, 1926.1148
03/20/1998	Posting of the OSHA notice.	1903.2
03/18/1998	OSHA's policy concerning repeat violations and requirements for PRCS sign posting.	1910.146(c)(2)
03/17/1998	Shoring frames used to support temporary decks and work platforms.	1926.450(b), 1926 Subpart L
03/16/1998	ROPs/seatbelts for roller compactors; lockout/tagout in construction.	1926.602(a)(1), 1926.1000(a)(2)
03/16/1998	Guidelines for ROPS on pneumatic compactors and "skid steer" equipment.	1926.602(a)(1)
03/16/1998	Identity of employee applying lockout and tagout devices.	1910.147(c)(5)(ii)(D)
03/13/1998	OSHA rulemaking on formaldehyde exposure limits	1910.1048, 1926.1148
03/13/1998	Citation policy for failure to return Annual OSHA Injury and Illness Survey.	1904.17
03/12/1998	OSH Act applicability to tribal land workplaces and employers.	1975.4(b)(3)
03/12/1998	Safety net and supporting stanchion requirements.	1926.502, 1910 Subpart D
03/12/1998	Welder electrical safety training	1910.252, 1910.254, 1910.255
03/06/1998	Waist/chest strap as part of full body harness.	1926.502(b), 1926.502(d)(16)
03/05/1998	Recalculating pressure vessel design; codes "no longer in use."	1910.119(d)(3)(iii), 1926.64(d)(3)(iii)
03/05/1998	Authority for injury/illness recordkeeping requirements;restricted work activity.	1952.4
03/04/1998	OSHA's Logging Operations Standard applies to commercial tree trimming.	1910.266

Letters of Interpretation

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