To amend title 23, United States Code, to establish national standards to prevent distracted driving, and for other purposes.

Requires the Secretary of Transportation to withhold specified graduated percentages of a state's apportionment of certain federal-aid highway program funds for FY2012-FY2015, and thereafter, if the state has not enacted or is not enforcing a law that prohibits, with specified exceptions, a person from using a wireless communications device to compose, read, or send an electronic message while operating a motor vehicle that is in motion or part of traffic.