The document summarizes a tour of biogas installations in Northern California that demonstrated various biogas feedstocks and processes. The tour stopped at (1) a landfill where landfill gas was collected, upgraded and liquefied for use as fuel in trucks, (2) a dairy farm where cow manure was digested to produce biogas for on-site power generation, (3) a dairy where milk haulers were converted to run on dairy biogas, and (4) a municipal solid waste facility where biogas from waste digestion fueled a large fuel cell to generate electricity for the city. The document also notes that CALSTART is involved in projects to advance the biomethane industry in California.