This AC describes an acceptable means of compliance with Part 21 Certification of Products and Parts.
This AC relates specifically to Civil Aviation Rule Part 21 Subpart H – Airworthiness Certificates, Rule 21.173(5) Special category–amateur-built airworthiness certificate, and Rule 21.197 Special category–amateur-built certification requirements.
Revision 3 is a complete re-issue with many updated sections to reflect the latest CAA and Federal Aviation Authority (FAA) interpretations and guidelines.
