Sirona Fuels Northern California's Largest Biodiesel producer located in Oakland California is now a Certified Green Business. We plan to not only conserve our resources but also educate employees and customers about resource conservation. As a Certified Green business we feel we are pioneers in our industry. Running a refinery involves many practices that have the ability to consume a overabundance of energy and resources. We have taken critical steps to not only reduce our resource consumption, but also to use our business's position to show that a refinery can be Green Certified. Our certification would not have been possible with out the team of bright and dedicated individuals from the Green MBA program at Dominican University of California. Through their auditing and reviews, we have been able to greatly reduce our environmental impact and footprint.