Hydrogen fuel cell vehicles (FCVs) in the United States use hydrogen gas to generate electricity through a chemical reaction, producing only water as a byproduct.

 Popular models like the Toyota Mirai and the Hyundai Nexo are currently available to consumers in select regions.

 These vehicles rely on fuel cell stacks that convert hydrogen and oxygen into electricity, offering a clean alternative to gasoline engines.

 Refueling a hydrogen car takes about 3–5 minutes, which is much faster than charging most electric vehicles.

 Hydrogen fueling infrastructure in the U.S. is still limited, with most stations located in California.

 FCVs produce zero harmful tailpipe emissions, making them environmentally friendly and suitable for reducing air pollution.

 Government incentives and policies in the United States support the adoption of hydrogen-powered transportation technologies.