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.

Filters


Date Title Standard Number
Applicability of Supbart CC standards to equipment with dragline attachments. 1926.1400(a), 1926.1400(b), 1926.1427(h)(2), 1926.1400(c)(14)
OSHA does not have the legal authority to evaluate and certify products. 1926.1052(b)
Bloodborne Pathogens Standard Requirements for Exposure Control Plans 1910.1030
Clarification of the term controlling entity and responsibility for ground conditions for safe crane operations 1926.1402(b), 1926.1402(e), 1926.1412(d)(1)(x)
OSHA's position on the acceptability of digital radiography in place of traditional chest roentgenograms. 1910.1001, 1910.1001(l)(2)(ii), 1926.1101, 1926.1101(m)(2)(ii)(C), 1915.1001, 1915.1001(m)(2)(ii)(C)
Facial Hair Under Seal of Tight-fitting Respirator 1910.134
Criteria and protocols for determining whether peronal fall arrest systems comply with OSHA standards 1926.502(d)(16), 1926.502(d)(16)(iii)
Crane operator certification and whether a practical test is required for re-certification. 1926.1427, 1926.1427(a), 1926.1427(j)
Fall Protection of Telecommunication Workers 1910.268
Labeling requirements for Diatomaceous Earth 1910.1200
Car Dealership Accident 1904 - Table of Contents
Speed-Sensing Machine Guards 1910.212
The Requirements of Submitting OSHA's Recordkeeping Forms to the United States Department of Labor/OSHA 1904.32, 1904.35, 1904.40, 1904.41, 1904.42
Enforcement Policy for Citing General Duty Clause instead of 29 CFR 1910.68 for Grandfathered Manlifts 1910.68
Clarification of OSHA training requirements for basic first aid and cardiopulmonary resuscitation (CPR). 1910.151, 1910.146, 1910.266, 1910.269, 1910.410, 1926.950
Clarification on the use of a tagout device when an energy isolating device is capable of being locked out. 1910.147
Hooking and Unhooking Loads with a Helicopter During Work on Electric Transmission Systems 1910.183, 1910.269, 1926.551, 1926 Subpart V
Requirements for watertight longitudinal bulkheads on crane barges. 1926.1437, 1926.1437(n)(7)(ii), 1926.1437(m)(5)
Definition of multi-employer worksite
Hazard communication of ammonia gas from new fuel additive in diesel trucks 1910.1200