### Question
How is the term fuel cell defined?


### Answer
The term **fuel cell** is defined in *42 U.S.C. § 16121* as the following:

> a device that directly converts the chemical energy of a fuel and an oxidant into electricity by electrochemical processes occurring at separate electrodes in the device

#### Citation:
  - *42 U.S.C. § 16121*
  - Heading: **CHAPTER 149-ENERGY POLICY, 2005 > SUBCHAPTER VII-VEHICLES AND FUELS > Part E-Federal and State Procurement**

