Biodiesel Regulations and City of Berkeley Biodiesel Use Policy

Effective June 1, 2009 - New State Regulations for Biodiesel Storage in Underground Storage Tanks

Recent regulations have been adopted by the State of California Office of Administrative Law to allow storage of up to 20% biodiesel (B20) in certain Underground Storage Tanks (USTs) that have been tested and approved for storing petroleum diesel. Before these regulations were adopted it was unlawful to store biodiesel in USTs that were installed before July 1, 2004, and it was unlawful to store any blend greater than B5 in USTs installed after July 1, 2004.

For information on how Toxics Management Division (TMD) is regulating biodiesel in USTs, see our Biodiesel Storage in USTs advisory bulletin.

For information on the State Water Resource Control Board's interim regulations and rulemaking process visite their website at:

City of Berkeley Biodiesel Use Policy

On May 19, 2009, the Berkeley City Council adopted a proposal to review the current practices of City biodiesel use. On September 29, 2009, staff presented the Council with an evaluation of the proposal from the Community Environmental Advisory Commission (CEAC). For more information on this review, see TMD's Council Action advisory bulletin.