Standard Interpretations
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.
- 1910.145 - ANSI standards regarding accident prevention signs and physical hazard marking. - 02/22/2011
- 1910.145 - Changes to asbestos warning signs and ANSI warning signs - 10/13/2015
- 1910.145 - Discrepancy between the Joint Commission and OSHA posting requirements for isolation rooms. - 11/05/1996
- 1910.145 - Fire station fire poles and the OSHA standards. - 05/29/1992
- 1910.145 - Letter concerning proposed safety sign revisions. - 11/18/1981
- 1910.145 - NEMA's "Mr. Ouch" labeling system cannot be used in place of signs required by OSHA. - 06/10/1983
- 1910.145 - Regulations concerning the size and use of safety traffic cones in General Industry. - 09/20/2004
- 1910.145 - The use of symbols as safety signs. - 07/09/1975
- 1910.145(c)(3) - Attachment requirements for window washing equipment. - 12/09/1986
- 1910.145(d) - ANSI standards regarding accident prevention signs and physical hazard marking. - 02/22/2011