Standard Interpretations
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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.
- 1910.39 - Emergency drainage systems for flammable/combustible liquids in industrial plants. - 10/06/1992
- 1910.39 - Fire brigades and portable fire extinguishers standards. - 07/03/1990
- 1910.39 - Fire equipment training requirements. - 09/12/1986
- 1910.39 - The airflow rate required for a spray painting area. - 04/08/1997
- 1910.39(b) - Clarification of whether employee emergency action or fire prevention plans need to be in written form - 02/05/1990