What minimum distance must ignition sources be from an LP-Gas transfer operation in progress?

The correct minimum distance for ignition sources from an LP-Gas transfer operation in progress is 25 feet. This requirement is established to ensure safety during the transfer of liquefied petroleum gas (LP-Gas), as ignitions that occur too close to the transfer operation can lead to significant hazards, including explosions or fires. The specified distance helps to mitigate the risk of ignition of any gas vapors that may escape during the transfer process. Maintaining this distance is crucial for protecting personnel, equipment, and structures in the vicinity, as well as ensuring compliance with safety regulations outlined in the NFPA 58 code. The importance of this regulation reflects the inherent risks associated with handling flammable gases and underscores the need for effective safety measures during operations involving LP-Gas.