WRCOG's Used Oil Recycling Program seeks to reduce the improper disposal of used motor oil, which can contaminate water and the environment. WRCOG certifies collection centers, distributes used oil collection containers at events, and educates do-it-yourselfers about recycling used motor oil through weekend collection and filter exchange events. The Program is funded by the California Department of Resources Recycling and Recovery (CalRecycle) and is operated in partnership with WRCOG member jurisdictions.