FACTBOX: Summary of Obama auto efficiency plan

(Reuters) - The Obama administration summarized the impact of its plan to boost U.S. automobile fuel efficiency standards and limit greenhouse gas emissions as follows:

* Requires yearly 5 percent increases in fuel efficiency from 2012 through 2016, resulting in an average fuel economy standard of 35.5 miles per gallon in 2016.

* Cuts oil consumption by an estimated 1.8 billion barrels over the life of the program.

* Cuts greenhouse gas emissions by a projected 900 million metric tons.

* Supported by 10 car companies and the United Auto Workers union.

* Sets one clear, national policy for all automakers, instead of standards from the Transportation Department, Environmental Protection Agency, and a California standard that would apply to 13 other states.

* Gives automakers clarity, predictability and certainty about the rules, as well as flexibility to meet the expected outcomes.