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

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Date Title Standard Number
Standpipe and hose systems. 1910.156, 1910.158
Are above ground tanks acceptable...in place of diking. 1910.106
Proper recording of occupational exposures to bloodborne pathogens. 1904 - Table of Contents
Exposure of trainers and team physicians to body fluids. 1910.1030
Recording an injury during snowmobiling as work related. 1904 - Table of Contents
Proper recording of work related burns on the OSHA 200 log. 1904 - Table of Contents
Recording of bloodborne pathogen injuries on the OSHA 200 log. 1904 - Table of Contents
Proper recording of cumulative trauma disorders (CTDs) on the OSHA 200 log. 1904 - Table of Contents
Acceptability of Hatch Net System.
Review of Robostop TCD 2000 product.
Interpretation of coverage for the telecommunications industry with regard to the new Permit-Required Confined Spaces standard. 1910.5, 1910.146, 1910.268
OSHA authority over injuries to the public. 1975.3
Recordkeeping issues: fractures, second degree burns, eye injuries, pre-existing conditions. 1904 - Table of Contents
Fire extinguisher requirements of Hazard Communication Standard. 1910.1200
Emergency response directive 1910.120 review. 1910.120
Hazardous substances found in veterinary practices. 1910.1200
Clarification of paragraphs (c)(5) and (c)(7) of the Permit-Required Confined Spaces standard. 1910.146
MSDS requirements. 1910.1200
Spray painting operations and the process safety management standard. 1910.119
Fumigants used to control insects in food plants. 1910.119