Advisory: Draining of Used Oil Filters
Improperly drained used oil filters must be managed as hazardous waste under California's Hazardous Waste Control Law
During recent inspections, the Department of Toxic Substances Control (DTSC) discovered a significant number of undrained or improperly drained used oil filters that were sent to metal recycling facilities by generators of those filters.
This advisory explains DTSC's regulations governing the management of used oil filters and highlights the draining techniques that DTSC has found to be most effective at removing residual oil from the filters.