The Department of Sanitation does not collect propane tanks, such as those used by gas barbecues, because they are pressurized and may explode when compressed in the garbage truck.
Used tanks should be exchanged when buying a new tank, or brought in to a hardware store or private propane dealer for reuse or recycling. Scrap metal dealers may also accept used tanks for recycling.
You can also bring propane tanks to a SAFE Disposal event.
Call 311 if you need more help.