Aviation Certification: FAA Needs to Strengthen Its Design Review Process for Small Airplanes, Report to Congressional Committees [open pdf - 2MB]
From the Highlights: "FAA [Federal Aviation Administration] is undergoing a major change in how it reviews and certifies the designs of small airplanes. The Small Airplane Revitalization Act of 2013 directed FAA to streamline its design reviews to improve safety, regulatory cost burden, innovation, and technology adoption. In 2016, FAA shifted from prescriptive design requirements to performance-based regulations. The FAA Reauthorization Act of 2018 directed GAO [Government Accountability Office] to review FAA's implementation of these regulations. This report examines: (1) FAA's implementation of performance-based safety regulations for small airplanes and (2) FAA's efforts to measure the effect of these regulations on safety, regulatory cost burden, innovation, and technology adoption."
Government Accountability Office: http://www.gao.gov/