National policies that promote fuel efficiency are important for several reasons. They can:
- Reduce U.S. dependence on foreign oil.
- Spur investment.
- Promote innovation.
- Lower the emission of harmful pollutants.
They can also enhance the nation's competitiveness in the global clean energy economy. Committing to strong national fuel-efficiency standards of 54.5 mpg by 2025 will yield benefits that strengthen our economic, national and environmental security far into the 21st century.