President Joe Biden announced in a Jan. 25 speech regarding his “Buy American” executive order that his administration is making a commitment to upgrade the federal fleet to electric vehicles (EVs) made in the U.S.

“The federal government…owns an enormous fleet of vehicles, which we’re going to replace with clean, electric vehicles made right here in America by American workers, creating millions of jobs — a million autoworker jobs in clean energy — and vehicles that are net-zero emissions,” President Biden said.

According to the latest Federal Fleet Report, the fleet consists of over 645,000 vehicles. No formal timeline for the shift has been revealed as of yet.

Biden promised during his campaign to invest $400 billion over 10 years in clean energy research and innovation in an effort to create a stable source of demand and to help accelerate the U.S.’ industrial capacity to produce clean vehicles and components.

The plan set forth during his presidential campaign also aims to accelerate R&D on battery technology for use in electric vehicles, with a focus on increasing durability, reducing waste, and lowering costs.