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title 51
NATIONAL AND COMMERCIAL SPACE PROGRAMS
subtitle IV
Aeronautics and Space Research and Education
chapter 407
ENVIRONMENTALLY FRIENDLY AIRCRAFT
Chapter 407. ENVIRONMENTALLY FRIENDLY AIRCRAFT
§ 40701
- Research and development initiative
§ 40702
- Additional research and development initiative
§ 40703
- Research alignment
§ 40704
- Research program on perceived impact of sonic booms
