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

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.