NextGen Area Navigation (RNAV) / Required Navigation Performance (RNP) : hearing before the Subcommittee on Aviation of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Eleventh Congress, first session, July 29, 2009

FAA reauthorization NextGen and the benefits of modernization : hearing before the Subcommittee on Aviation Operations, Safety, and Security of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Eleventh Congress, first session, March 25, 2009

Transforming America's air travel : hearing before the Subcommittee on Space, Committee on Science, Space, and Technology, House of Representatives, One Hundred Fourteenth Congress, first session, June 11, 2015

FAA Modernization and Safety Improvement Act report of the Committee on Commerce, Science, and Transportation on S. 1451

NextGen a review of the RTCA Mid-term Implementation Task Force report : hearing before the Subcommittee on Aviation of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Eleventh Congress, first session, October 28, 2009

ATC modernization and NextGen near-term achievable goals hearing before the Subcommittee on Aviation of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Eleventh Congress, first session, March 18, 2009

Federal Aviation Administration reauthorization : issues in modernizing and operating the nation's airspace : hearing before the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Thirteenth Congress, second session, November 18, 2014

Causes of delays to the FAA's NextGen program : hearing before the Subcommittee on Aviation of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Thirteenth Congress, first session, July 17, 2013