Refer to these standards when planning placement of LP-Gas containers.
Copies are available from the respective agencies.
The Charts following are reprinted with permission of NFPA 58 - 1992, Storage and Handling of Liquefied Petroleum Gases, Copyright 1992, Quinsy, MA 02269. This reprinted material is not the complete and official position of the NFPA on the proper placement of cylinders and tanks which is represented only by the standard in its entirety. Location of DOT Cylinders Notes From NFPA 58, Appendix G Federal, provincial, state and local ordinances and regulations may differ and should be observed at all times. May be reduced to 10 feet minimum for a single container of 1200 gallons water capacity or less if it is located at least 25 feet from any other LP-Gas container of more than 125 gallons water capacity. Minimum distances from underground containers shall be measured from the relief valve and filling or level gauge vent connection at the container, except that no part of an underground container shall be less than 10 feet from a building or line adjoining property which may be built upon.