FAA Modernization and Reform Act of 2012 (FMRA), Pub. L. No. 112-95, 126 Stat. 11 (Feb. 2012).
Under the FMRA, Congress instructed the FAA to "develop a comprehensive plan to safely accelerate the integration of civil unmanned aircraft systems into the national airspace system." These regulations must provide for this integration "as soon as practicable, but not later than September 30, 2015."