EPA Administrator Scott Pruitt has promised to reverse some of the agency’s actions that were considered costly to states and cities.
But the Clean Power Act is the law the EPA and other agencies have relied on to protect public health and the environment.
The agency said it would take a new approach to enforcement.
“EPA has not made a decision about how it will enforce the Clean Energy Act or the Clean Water Act, nor have we issued guidance on what guidance to use to carry out those mandates,” a spokeswoman said in a statement.
In June, Pruitt said that the EPA was “not going to take any action that has a negative impact on states.”
The EPA is still expected to take the lead in enforcing the Clean Air Act, which requires utilities to reduce pollution, including from power plants.
The agency also has a mandate to enforce the federal Clean Water Protection Act.
Trump and Pruitt have been at odds over how the EPA should enforce the law.
Environmentalists say Pruitt’s administration has taken too long to develop rules that will help the economy recover from climate change.
The White House said on Friday it was “committed to getting the Clean Technology and Clean Energy Jobs Act passed by the end of the year.”
In April, Trump announced his intention to pull out of the Paris climate deal, which was agreed to by 195 nations last year.