The Environmental Protection Agency (EPA) has released new proposals for restricting vehicle emissions and pollution–which, if finalized, would drive up the demand for electric vehicles, Kelley Blue Book reports.

Two sets of rules have been proposed: one for light to medium-duty vehicles, which would apply to most vehicles consumers purchase; and the other set of rules for heavy-duty trucks, most commonly for commercial uses.

The EPA said that if these new rules were put into place, it’s possible that “EVs could account for 67% of new light-duty vehicle sales and 46% of new medium-duty vehicle sales in [model year] 2032,” and that these proposals would amount to “eliminating all greenhouse gas emissions from the entire current U.S. transportation sector for four years.”

It’s noted that the rules being proposed are not the same as “fuel economy standards that require cars to meet specific mileage targets,” which the U.S. government will reportedly revise soon as well.

The proposed rules are also not yet final, as NPR points out, stating that “the proposed standards (which include several alternative options) will be open for public comment,” and that future revisions could be possible.