Automakers prep for stronger mileage standards under Biden
Most automakers want one national standard so they don’t have to build two versions of each vehicle.
As US lowers auto emissions standards, Canada reaches crossroads
Still thinking about whether it will stick with ambitious future emission standards.
Feds insist emission standards need to strengthen, as US eases rules
Current rules aim of increasing fuel efficiency for vehicles sold between 2022 and 2025.
Auto fuel efficiency makes gains, but falls short of targets
CO2 fuel economy data show 2016 was higher than model year 2015 by only one-tenth of a gallon.