The Air Commerce Act of 1926 declared the navigable airspace of the United States to be free for use.
Notes on verification
Confirmed by codified U.S. Code language, federal appellate precedent (Cheyenne Airport Board v. Rogers), and U.S. Supreme Court decision (United States v. Causby, 1946), plus scholarly legal commentary. [tier=gold indep_score=1.0 clusters=4 claim_tier=notable | framework convergence=partial on the statutory text of the Air Commerce Act of 1926 as codified in 49 U.S.C. §171 and interpreted in United States v. Causby (upstreams: Air Commerce Act of 1926 (Pub. L. 69-254, 44 Stat. 568), United States v. Causby (1946)) — publishers independent, evidence may not be | kind=empirical eligibility=high]
Sources
- How Much of the Sky Overhead Do You Own? (seed:law_and_crime)
- https://supreme.justia.com/cases/federal/us/328/256 (corroboration)
- https://tile.loc.gov/storage-services/service/ll/uscode/uscode1925-00304/uscode1925-003049006/uscode1925-003049006.pdf (corroboration)
- https://www.courtlistener.com/opinion/1268737/cheyenne-airport-board-v-rogers/ (corroboration)
- https://www.cambridge.org/core/journals/cambridge-law-journal/article/abs/property-in-thin-air/8577254C1FABAA2C1945FA55C82A8EE6 (corroboration)