California has led the way in the transition to EVs with its ban on selling new gasoline-powered vehicles by 2035, forcing states following California emissions standards to react, CNET reports.

While seventeen states follow California’s emissions standards, only six of those states have committed to following the Advanced Clean Cars II rule from California that would ban gasoline vehicles. Those states are Maryland, Massachusetts, New Jersey, New York, Oregon, and Washington.

Some other states have taken measures as well, such as Vermont, which will require new vehicles sold in the state to be zero-emission by 2030, according to WCAX.

In Colorado, Governor Jared Polis has objected to the ban on gasoline vehicles, with the state instead focusing efforts on making EVs “more affordable and practical.” The Colorado Electric Vehicle plan released in March aims for 80% of new car sales to be EVs by 2032.

Virginia has been trying to divorce itself from California’s emissions standards, the last attempt to do so having failed this past February.

Minnesota’s 2021 Clean Car Rule is meant to align with California’s standards, but would not initiate a ban on gasoline vehicles. According to State Representative Jamie Long, the chances of such a ban being put in place are “probably low,” as originally reported by MinnPost.