If States do not have the right to stop fuel efficiencies from going into effect, why can the sue to prevent them from going into effect?
19 states vow to sue over proposed fuel efficiency rollbacks
The proposed plan would freeze fuel efficiency standards at the levels current policy is targeting for 2020. Standards would then remain at those levels through 2026. Further, the administration is looking to strip California of the waiver that allows it to set its own standards.