42 USC § 16121 - Definitions

---
identifier: "/us/usc/t42/s16121"
source: "usc"
legal_status: "official_prima_facie"
title: "42 USC § 16121 - Definitions"
title_number: 42
title_name: "THE PUBLIC HEALTH AND WELFARE"
section_number: "16121"
section_name: "Definitions"
chapter_number: 149
chapter_name: "NATIONAL ENERGY POLICY AND PROGRAMS"
subchapter_number: "VII"
subchapter_name: "VEHICLES AND FUELS"
part_number: "E"
part_name: "Federal and State Procurement"
positive_law: false
currency: "119-84"
last_updated: "2026-04-17"
format_version: "1.1.0"
generator: "[email protected]"
source_credit: "(Pub. L. 109–58, title VII, § 781, Aug. 8, 2005, 119 Stat. 835.)"
---


# § 16121. Definitions

In this part:

**(1)** **Fuel cell** The term “fuel cell” means 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.

**(2)** **Light-duty or heavy-duty vehicle fleet** The term “light-duty or heavy-duty vehicle fleet” does not include any vehicle designed or procured for combat or combat-related missions.

**(3)** **Stationary; portable** The terms “stationary” and “portable”, when used in reference to a fuel cell, include—

**(A)** continuous electric power; and

**(B)** backup electric power.

**(4)** **Task Force** section 16155 of this title

The term “Task Force” means the Hydrogen and Fuel Cell Technical Task Force established under .

**(5)** **Technical Advisory Committee** section 16156 of this title

The term “Technical Advisory Committee” means the independent Technical Advisory Committee selected under .

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**Source Credit**: (Pub. L. 109–58, title VII, § 781, Aug. 8, 2005, 119 Stat. 835.)