Hydrogen, the most abundant of the elements, can be produced domestically and used as an alternative fuel via its role in powering fuel cell vehicles. The Energy Policy Act of 1992 established hydrogen as an alternative fuel.
 

 
US Department of Energy - Hydrogen Fueling Stations
 
National Hydrogen Association
 
US Department of Energy - Hydrogen
 
State Fuel Cell and Hydrogen Database
 
Hydrogen.Gov