A significant change to environmental regulations is expected. This move could remove billions of dollars in costs for certain industries. It represents a shift away from previous efforts to reduce pollution and address climate change.

Further details about the proposal are available, including potential impacts on communities and the energy sector. The change is likely to face legal challenges.

The proposal was put forward last year and may be announced soon, according to people familiar with the matter. It could limit the ability of future administrations to regulate certain emissions.