Title 14, Code of Federal Regulations (14 CFR), part 21, section 21.191(g), defines an amateur-built aircraft as an aircraft “the major portion of which has been fabricated and assembled by person(s) who undertook the construction project solely for their own education or recreation.”
Page Last Modified: 09/16/09 10:47 EDT
This page can be viewed online at: http://www.faa.gov/aircraft/gen_av/ultralights/amateur_built/