FAA AC 21-37 : 0

1 Purpose
2 Related Regulations and Documents
3 Background
4 Definition of Primary Category Aircraft
5 Optional Nature of Primary Category Aircraft
6 Use of Designated Engineering Representative (DER)
7 Section 21.17 Designation of Applicable Regulations
8 Section Issuance of TC: Primary Category Aircraft
9 Section 21.31 Type Design
10 Section 21.35 Flight Tests
11 Section 21.93 Classification of Changes in Type Design
12 Section 21.163 Privileges
13 Section 21.165 Responsibility of Holder
14 Section 21.175 Airworthiness Certificates:
   Classification
15 Section 21.181 Duration
16 Section 21.182 Aircraft Identification
17 Section 21.184 Issue of Special Airworthiness
   Certificate for Primary Category Aircraft
18 Section 21.187 Issue of Multiple Airworthiness
   Certification
19 Section 21.191 Experimental Certificates
20 FAR Part 36 - Noise Standards: Aircraft Type and
   Airworthiness Certification
21 FAR Part 43 - Maintenance, Preventive Maintenance,
   Rebuilding and Alteration
22 FAR Part 91 - General Operating and Flight Rules
23 FAR Part 147 - Aviation Maintenance Technician Schools

Gives guidance for complying with the requirements that have been modified to include requirements unique to primary category aircraft. It discusses type, production and airworthiness certification. It also discusses the associated maintenance procedures and operating limitations.