The Biden administration said on Friday portions of nuclear power plants will be able to secure tax credits to produce clean hydrogen if the credits help to prevent reactors from retiring.

The final rule for clean-hydrogen production would allow some nuclear power plants that are at risk of retirement to produce the gas.

Hydrogen startups are widely seen as a promising way to eliminate fossil fuels from heavy industry and long-haul transportation. The wait ended today, with the Treasury announcing final rules for hydrogen producers to qualify for tax credits under the section 45V of the Inflation Reduction Act.