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Propane Tanks and Overfill Prevention Device (OPD) Requirements All new cylinders must be manufactured with overfill protection devices (OPDs) Cylinders without OPDs are no longer permitted to be refilled by anyone. The National Fire Protection Association (NFPA) requires that every refilled propane cylinder be equipped with an Overfill Prevention Device (OPD). This code went into effect for most states on April 1, 2002. An OPD is a safety device designed to prevent the overfilling of a propane cylinder through a float valve that closes when the propane level reaches 80%. This limits the potential for release of gas when the cylinder is heated, averting a fire or possible injury. Additionally, the OPD stops gas flow when the cylinder is not connected.
Propane tanks can be legally disposed in El Dorado County at the following Household Hazardous Waste disposal sites: Temporary sites, and MRF . Sometimes they are accepted at the Electronic Waste (E-Waste) events - please check prior to bringing them to the event.