About a week ago, we began hearing rumors that Governor Healey was being pressured by the auto industry to delay implementation of the Advanced Clean Cars (ACC2) rule. ACC2 would, starting with model year 2026, require automakers to gradually increase the percentage of new cars sold in the Bay State that are electric. The Department of Environmental Protection adopted the regulations after an open public process way back in 2023, so it’s disheartening to know that this issue is on the table at all. The transportation sector is the leading cause of greenhouse gas (GHG) emissions in Massachusetts, and ACC2 is, by far, the most important policy for reducing those emissions.