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.
- 1910.110 - Flammable and Combustible Liquids Code Handbook. - 07/26/1990
- 1910.110 - Liquified Petroleum Gases. - 11/11/1976
- 1910.110(b)(14)(i) - Interpretation of the word "close". - 09/09/1993
- 1910.110(b)(6) - Distance requirements for placement of propane gas tanks. - 02/10/1975
- 1910.110(b)(6) - Minimum separation distance between aboveground LPG containers (used for stationary engines) and buildings - 07/20/2020
- 1910.110(b)(6)(ii) - Minimum separation distance between aboveground LPG containers (used for stationary engines) and buildings - 07/20/2020
- 1910.110(b)(6)(ii) - Separation of LPG containers from "important buildings" in 1910.110 - 04/10/1991
- 1910.110(d)(13)(i) - Standards applying to aerosol container charging plants. - 04/30/1975
- 1910.110(d)(13)(iii) - Standards applying to aerosol container charging plants. - 04/30/1975
- 1910.110(e)(4)(i) - Propane tank installation in passenger-carrying vehicles. - 11/17/1983
- 1910.110(f)(4)(i) - Storage and Handling of Liquefied Petroleum Gas - 04/04/2013
- 1910.110(f)(5) - Storage and Handling of Liquefied Petroleum Gas - 04/04/2013