The FAST Act: - Was signed into law in December 2015, providing the first long-term surface transportation authorization in over a decade. - Authorizes $305 billion over five years (FY2016-2020) for highway, transit, and safety programs through fiscal year 2020. - Includes $226 billion for highways, with funding increasing each year to $47.1 billion in FY2020, addressing the Highway Trust Fund shortfall through transfers. - Continues MAP-21 reforms while adding new freight and nationally significant projects programs and accelerating project delivery.