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 Biden administration released long-awaited final rules Friday for a tax credit that will send billions of dollars to producers of cleaner hydrogen. The new rules drew cautious praise from environmental groups,

The eleventh-hour rules come just over two weeks before President-elect Donald Trump again takes office. He is expected to try to roll back green tax credits and cancel unspent funding issued during the Biden administration.