The Colorado government is considering new rules that would that, “would require large truck dealers to market a certain percentage of their stock as low-emissions diesel engines starting in 2027, and zero-emission medium and heavy-duty electric trucks starting in model year 2035.”
According to Garry Kaufman, director of the Colorado Air Pollution Control Division, the new rules will “significantly reduce greenhouse gas emissions and other emissions that contribute to ozone pollution,” with the goal of a 100% zero-emissions truck fleet by 2050.
You can read more here: Electric semi-tractor trucks on the menu at Air Quality Control Commission