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
Several OSHA injury and illness recordkeeping issues. 1904 - Table of Contents
Several OSHA injury and illness recordkeeping issues. 1904 - Table of Contents
Recording disputed injury and illness cases. 1904 - Table of Contents
Classification of carpal tunnel syndrome cases. 1904 - Table of Contents
Recording cases involving restricted work activity. 1904 - Table of Contents
Several OSHA injury and illness recordkeeping issues. 1904 - Table of Contents
Use of a tuberculocidal disinfectant to clean contaminated areas. 1910.1030
The wearing of steel-toe shoes by electrical tradesmen. 1910.136(b), 1926.96
Modifying a ladder for loads in excess of manufacturer's rated capacity. 1926.1053(a)(1)(i), 1926.1053(a)(1)(ii)
Several OSHA injury and illness recordkeeping issues. 1904 - Table of Contents
Pulmonary function testing training requirements and spirometer transmission of disease. 1910.134, 1910.134(c)(1)(ii), 1910.134(e), 1910.1001, 1910.1001(l)(1)(ii)(B), 1910.1028, 1910.1030(a), 1910.1043, 1910.1048
Whether an off-site HAZMAT emergency response team may be permitted to all areas of a hazardous waste site in an emergency response action. 1910.120
Variance Informational Handout. 1905.10, 1905.11
Strength of scaffold planking. 1926.451
Recording restricted work activity. 1904 - Table of Contents
Labeling requirements of hazardous chemicals. 1910.1200
Applicability of the Machine Guarding and Lockout/Tagout standards to printing presses 1910.147, 1910.212, 1910.219
Use of power strips. 1910.305
Review of Avondale Shipyard in Avondale, Louisiana.
Back-up alarm requirements on vehicles. 1917.43(c)(5), 1918.65(f)(1)