A bill to authorize the acquisition and protection of nationally significant battlefields and associated sites of the Revolutionary War and the War of 1812 under the American Battlefield Protection Program.

American Battlefield Protection Program Amendments Act of 2013 - Amends the Omnibus Public Land Management Act of 2009, with respect to the Battlefield Acquisition Grant Program, to: (1) expand the current definition of "battlefield report" to include the report entitled "Report to Congress on the Historic Preservation of Revolutionary War and War of 1812 Sites in the United States"; and...