There are many ways to find ASTM quality biodiesel near your location:

Try here for a list of all California Biodiesel Locations.

Try here for a list of all Truck Accessible Locations.

For fleets, try ProMiles information.

Try the the National Biodiesel Board biodiesel locator number: 1-866-BIODIESEL.

Try the Department of Energy's Alternative Fuel Station Locator that contains a database of refueling stations for the entire country to find stations offering alternative fuels.

Try NearBio, a FREE service that combines the most comprehensive, verified list of US biodiesel locations (retail pumps) and driving directions with easy access from your cell phone or your computer.