U.S. Code / Title 42 — The Public Health… / Chapter 149—National Energy Policy and Programs / Subchapter Vii—Vehicles and FuelsTitle 42PartPart E—Federal and State ProcurementContents§ 16121. Definitions§ 16122. Federal and State procurement of fuel cell vehicles and hydrogen energy systems§ 16123. Federal procurement of stationary, portable, and micro fuel cells