...and it doesn't stop when you leave!
TLA's and other acronyms
AAD Additional Airworthiness Directive
AAN Additional Airworthiness Notice
AC Advisory Circular (FAA)
ACJ Advisory Circular Joint (JAA/EASA)
AD Airworthiness Directive
AMC Acceptable Means of Compliance (EASA)
AMOC Acceptable Means of Compliance
AOC Air Operators Certificate
ARC Airworthiness Review Certificate (EASA Form 25)
C of A Certificate of Airworthiness
CAAIPS Civil Aircraft Airworthiness Information and Procedures (CAP 562)
CAME Continuing Airworthiness Management Exposition (Part-M, Sub-part G)
CFR Code of Federal Regulations (FAA) See examples
CMP Configuration, Maintenance and Procedures document (ETOPS)
CR Commission Regulation (EU/EASA)
CS Certification Specifications (EASA)
CtAW Continuous Airworthiness (CAA)
EASA European Aviation Safety Agency
EC European Commission
ED European Decision (EU/EASA)
EROPS Extended Range OPerationS (Also see - LROPS [Long-] and ETOPS, [Extended Twin-engined-])
ETOPS Extended-range Twin-engine OPerationS (Also see - LROPS [Long-] and EROPS, Extended-)
GM Guidance Material (EASA)
GR Generic Requirement (CAA - CAP 747 Appendix 1)
ICAO International Civil Aiviation Organisation
IEM Interpretive/Explanatary Material (JAA/EASA)
IR Implementing Rule (EASA)
JAA Joint Airworthiness Authority
JAR Joint Airworthiness Regulation
LROPS Long Range OPerationS (Also see - ETOPS [Extended Twin-engined-] and EROPS, Extended-)
MAMIS Mandatory Aircraft Modifications and Inspections Summary (CAP 474)
MMOE Maintenance Management Organisation Exposition (JAR-Ops & Part M)
MOE Maintenance Organisation Exposition (Part 145)
MPD Maintenance Planning Document
TCDS Type Certificate Data Sheet
TGL Temporary Guidance Leaflet (JAA)
TGM Temporary Guidance Material (EASA)
TLA's Three (or more) Letter Acronyms!
Examples:
EASA - IR CR (EC) No.2042/2003 Annex I - Part-M (Continuing Airworthiness)
EASA - AMC & GM to IR CR (EC) No.2042/2003 Annex II - Part-145 (Maintenance Organisation Exposition)
CFR 14, Chap 1, Sub-Chap H, Part 145 - Repair Stations.