I recently attended an ASTM meeting. This is for the standards that are used to “certify” Light-Sport Aircraft. Yes, it’s pretty dry stuff but it is the way such a staggering development of 128 new models of LSA has been possible in just seven years, an accomplishment not replicated anywhere in aviation, worldwide, since airplanes first flew. That would not be possible when using government certification systems.
So successful has it been that the FAA is now moving with surprising swiftness toward a similar system for Part 23 or regularly Type Certified aircraft, such as Cessnas and Cirruses.