 In 1977, plans were made for US 140 to be decommissioned, with the route to be replaced by MD 140 between Baltimore and Westminster, MD 97 between Westminster and the Pennsylvania state line, and PA 97 between the Maryland state line and Gettysburg.This proposal was made in order to eliminate short routes from the U.S. Highway System.The American Association of State Highway and Transportation Officials approved the removal of the US 140 designation on October 28, 1977.