This is some interesting news.... http://www.wolfenstock.com/TaylorvFAA/TaylorFAAOpinion.pdf "In short, the 2012 FAA Modernization and Reform Act provides that the FAA “may not promulgate any rule or regulation regarding a model aircraft,” yet the FAA’s 2015 Registration Rule is a “rule or regulation regarding a model aircraft.” Statutory interpretation does not get much simpler. The Registration Rule is unlawful as applied to model aircraft." "The FAA’s arguments to the contrary are unpersuasive. First, the FAA contends that the Registration Rule is authorized by pre-existing statutory provisions that are unaffected by the FAA Modernization and Reform Act. Specifically, the FAA notes that, under longstanding statutes, aircraft are statutorily required to register before operation. See 49 U.S.C. §§ 44101, 44103. But the FAA has never previously interpreted that registration requirement to apply to model aircraft. The FAA responds that nothing in the 2012 FAA Modernization and Reform Act prevents the FAA from changing course and applying that registration requirement to model aircraft now. The FAA claims that the Registration Rule is therefore not a new requirement at all, but merely a “decision to cease its exercise of enforcement discretion. We disagree" "The FAA’s Registration Rule violates Section 336 of the FAA Modernization and Reform Act. We grant Taylor’s petition for review of the Registration Rule, and we vacate the Registration Rule to the extent it applies to model aircraft. "