Pub. L. 109–155, title IV, § 421119 Stat. 2924section 40111 of Title 51Section 16721, , , , related to long-term fundamental research program in aeronautics. Subsecs. (a) and (b) were reenacted as , National and Commercial Space Programs.
Pub. L. 109–155, title IV, § 422119 Stat. 2924Section 16722, , , , related to research and technology programs for environmental aircraft, supersonic transport, rotorcraft and other runway-independent air vehicles, hypersonics, revolutionary aeronautical concepts, fuel cell-powered aircraft, and Mars aircraft. See sections 40112 and 40701 of Title 51.
Pub. L. 109–155, title IV, § 423119 Stat. 2925section 40113 of Title 51Section 16723, , , , related to Airspace Systems Research program. See .
Pub. L. 109–155, title IV, § 424119 Stat. 2926section 40114 of Title 51Section 16724, , , , related to Aviation Safety and Security Research program. See .
Pub. L. 109–155, title IV, § 425119 Stat. 2926section 40115 of Title 51Section 16725, , , , related to aviation weather research. See .
Pub. L. 109–155, title IV, § 426119 Stat. 2926Section 16726, , , , related to assessment of wake turbulence research and development program and required report to Congress no later than two years after .
Pub. L. 109–155, title IV, § 427119 Stat. 2926Pub. L. 110–422, title III, § 308122 Stat. 4788section 40116 of Title 51Section 16727, , , ; , , , related to university-based Centers for Research on Aviation Training. See .