The California Hydrogen Highway is a planned series of hydrogen refueling stations in California. These stations are used to refuel hydrogen vehicles such as fuel cell vehicles and hydrogen combustion vehicles.
As of 2007, twenty five stations were in operation. Some of these hydrogen fueling stations completed the terms of their government-funded research demonstration project and were decommissioned. In 2012, there were 23 hydrogen fueling stations in California,eight of which were publicly accessible.
In 2013 Governor Brown signed AB 8, a bill to fund $20 million a year for up to 100 stations. As of 2016[update], there are 20 publicly accessible hydrogen refueling stations in California.