To amend title 23, United States Code, to reduce the amount of funding available to States that do not enact a law prohibiting an individual from using a wireless communication device while operating a motor vehicle in a school zone, and for other purposes.

Erica's Law - Requires the Secretary of Transportation to withhold 15% of a state's apportionment of certain federal-aid highway program funds if the state has not enacted or is not enforcing a law that: (1) prohibits, with specified exceptions, an individual from using a wireless communication device to call or compose, read, or send an electronic message while operating a motor vehicle in a school zone; and (2) requires, upon conviction of a violation of the prohibition, the imposition of certain minimum penalties.