AC - Advisory Circular
AC(J) - Advisory Circular (Joint)
Amdt. - Amendment
AN - Airworthiness Notice
ARAC - Aviation Rulemaking Advisory Committee
AWM - Airworthiness Manual
CAM - Civil Aviation Manual
CAR - Canadian Aviation Regulations
CARAC - Canadian Aviation Regulation Advisory Council
CARC - Civil Aviation Regulatory Committee
CPR - Changed Product Rule
DOT - Department of Transport
EASA - European Aviation Safety Agency
FAA - Federal Aviation Administration
FAQ - Frequently Asked Questions
FAR - Federal Aviation Regulation
FR - Federal Register
ICPTF - International Certification Procedures Task Force
JAA - Joint Aviation Authorities
JAR - Joint Aviation Regulation
LSTC - Limited Supplemental Type Certificate
NPA - Notice of Proposed Amendment
NPRM - Notice of Proposed Rulemaking
PDA - Part Design Approval
PMA - Parts Manufacturer Approval
STC - Supplemental Type Certificate
TC - Type Certificate
TCCA - Transport Canada Civil Aviation
TCDS - Type Certificate Data Sheet
TSO - Technical Standard Order
VLA - Very Light Aeroplanes