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
09/04/1996	Entry into a confined space when the lower flammable limit is greater than ten percent.	1910.134, 1910.146
09/04/1996	Solvent Distillation Units.	1910.106
09/04/1996	An installation which has permanent davit arms and davit bases, but does not have a powered platform; a rental stage is brought in for maintenance.	1910.28, 1910.66
09/04/1996	Machine anchoring requirements as it may apply to the dental polishing lathes.	1910.212
09/04/1996	Belt mounted filtration unit used with any NIOSH approved supplied-air respirator.	1910.134
09/03/1996	PEL for inorganic mercury is a time weighted average, not a ceiling	1910.1000 TABLE Z-2
09/03/1996	Particulate Respirators Certified under 42 CFR Part 84.	1910.134
08/30/1996	The NOWPAK Solvent Dispensing System.	1910.106
08/29/1996	Recommended Exposure Limit (REL) for Crystalline Silica.
08/29/1996	The DOL's intention to issue voluntary guidelines designed to prevent violence at late night retail establishments.
08/28/1996	Appropriateness of the usage of video presentations in meeting the OSHA bloodborne training requirements.	1910.1030
08/28/1996	Change in training requirements for bloodborne pathogens and tuberculosis.	1910.1030
08/28/1996	The SPS "Needle-Eater" and accessory sharps transfer container.	1910.1030
08/26/1996	DOT Approved Gas Cans.	1926.152
08/26/1996	Clarification of Asbestos standard.	1926.1101
08/23/1996	Interpretation of the electic power generation, transmission and distribution (electric power generation) standard.	1910.269
08/22/1996	Clarification regarding the use of eyewash stations.	1910.151, 1910.1200
08/21/1996	Corrections to general industry standards incorporated into the construction standards.	1926.416, 1926.417, 1926.550
08/20/1996	Railroad workers and their exposure to crystalline silica.	1910.1000
08/19/1996	Chest X-ray and sputum cytology requirements.	1910.1018, 1910.1029

Letters of Interpretation

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