The Trump administration will soon propose repealing the Obama administration’s climate change rule for power plants but won’t commit to replacing it with another regulation.

A draft of the proposal obtained by The Hill on Friday asserts that under former President Barack Obama Barack Hussein ObamaObama calls on Senate not to fill Ginsburg's vacancy until after election Senate Republicans face tough decision on replacing Ginsburg Cruz: Trump should nominate a Supreme Court justice next week MORE, the Environmental Protection Agency (EPA) issued a Clean Power Plan that “is not within Congress’s grant of authority to the agency under the governing statute.”

“The EPA is proposing to repeal the CPP in its entirety,” the agency writes in the notice that would be published in the Federal Register.

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“The EPA proposes to take this action because it proposes to determine that the rule exceeds its authority under the statute, that those portions of the rule which arguably do not exceed its authority are not severable and separately implementable, and that it is not appropriate for a rule that exceeds statutory authority — especially a rule of this magnitude and with this level of impact on areas of traditional state regulatory authority — to remain in existence pending a potential, successive rulemaking process.”

The administration is expected to roll out the proposed repeal as early as Friday, which would open what is certain to be a fierce regulatory battle over the limits of the EPA’s authority and its responsibility to fight climate change.

The regulation was the pillar of Obama’s aggressive second-term climate agenda, in which he sought to take unilateral actions to fight climate change after Congress refused to pass cap-and-trade legislation.

It then become central to Republicans’ and the business community’s arguments that the Obama administration went too far with regulations. EPA Administrator Scott Pruitt Edward (Scott) Scott PruittJuan Williams: Swamp creature at the White House Science protections must be enforceable Conspicuous by their absence from the Republican Convention MORE, who was Oklahoma’s Republican attorney general during the Obama administration, was a leading figure in the federal court fight to get the rule overturned.

The Trump administration's argument against the Clean Power Plan is largely similar to one the rule’s opponents used when filing lawsuits against it.

States that sued against the Clean Power Plan in 2015 — a group that included Pruitt — argued that the regulation was overly broad and went outside the agency's authority.

Supporters of the rule have pushed back on that argument, saying the rule is permissible by law.

Environmentalists slammed the EPA’s decision on Friday, with the Natural Resources Defense Council calling it a “dirty power plan.”

They also questioned the EPA’s recalculation of the rule’s proposed benefits, including fewer deaths from pollution-related health problems and lower climate change-related costs.

“We already knew Donald Trump and Scott Pruitt reject science, but this smearing of the Clean Power Plan’s massive public benefits shows they reject basic math, too,” Liz Perera, the climate policy director at the Sierra Club said. “The Trump administration’s assault on the Clean Power Plan is about one thing and one thing only: helping corporate polluters profit.”

In its filing, the EPA said it would take comments on whether to write a new climate regulation that it says fits within the law.

The agency said it “will solicit information on systems of emission reduction that are in accord with the legal interpretation proposed in this notice,” though that process is likely to be a lengthy one.

The rule will also set up a contentious fight over how strictly to regulate climate change-causing pollutants. President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE has expressed doubt about the science behind climate change, and Pruitt has proposed launching a public debate over the validity of climate science.