AAIB
Air Accidents Investigation Branch
AAL
Above Aerodrome Level
ACN
Aircraft Classification Number
ACSA
Aviation Safety Authority for Central America
AD
Airworthiness Directive
ADRS
Aircraft Data Recording System
AFIM
Antarctic Flight Information Manual
AFISO
Aerodrome Flight Information Service Officer
AGL
Above Ground Level
AIP
Aeronautical Information Publication
AIR
Airborne Image Recorder
AIRS
Airborne Image Recording System
ALoSP
Acceptable Level of Safety Performance
AME
Aircraft Maintenance Engineer or Approved Medical Examiner
AMO
Approved Maintenance Organisation
AMP
Aircraft Maintenance Programme
AN(OT)ESO
Air Navigation (Overseas Territories) Environmental Standards Order
AN(OT)O
Air Navigation (Overseas Territories) Order
ANO
Air Navigation Order
ANSP
Air Navigation Service Provider
AOC
Air Operator's Certificate
APCC
Aviation Policy Consultative Conference
ASDA
Accelerate Stop Distance Available
ASSI
Air Safety Support International
ATC/ATS/ATCC
Air Traffic Control/Services/Control Centre
ATLB
Air Transport Licensing Board
ATM
Air Traffic Movement
ATPL
Air Transport Pilot's Licence
ATS
Air Traffic Service(s)
BAS
British Antarctic Survey
BAT
British Antarctic Territories
BCAR
British Civil Airworthiness Requirements
BDA
Bermuda
BCAA
Bermuda Civil Aviation Authority
BIOT
British Indian Ocean Territory
BVI
British Virgin Islands
C of A
Certificate of Airworthiness
C of V
Certificate of Validity
CAACI
Civil Aviation Authority of the Cayman Islands
CAD
Civil Aviation Department
CAMO
Continued Airworthiness Management Organisation
CAR
Civil Aviation Regulation or Canadian Aviation Regulation
CARICOM
Caribbean Community
CBR
California Bearing Ratio
Cd
Candela
CD
Crown Dependency
CI
Cayman Islands
CN
Certification Note
CPL
Commercial Pilot's Licence
CRM
Crew Resource Management
CRS
Certificate of Release to Service
DAI
Designated Airworthiness Inspector
DAO
Department of Airport Operations
DAR
Designated Airworthiness Representative
DCA
Directorate (or Director) of Civil Aviation
DfID
Department for International Development
DfT
Department for Transport
DLR
Data Link Recorder
DLRS
Data Link Recording System
DME
Distance Measuring Equipment (navigational aid)
DOD
Department of Defence (USA)
EASA
European Aviation Safety Agency
EC
European Commission
ECCAIRS
European Coordination Centre for Accident and Incident Reporting Systems
ERP
Emergency Response Plan
EU
European Union
FAA
Federal Aviation Administration  (USA)
FAR
Federal Aviation Regulations  (USA)
FBU
Flight Briefing Unit
FCL
Flight Crew Licensing
FCO
Foreign and Commonwealth Office
FI
Falkland Islands
FIG
Falkland Islands Government
FIGAS
Falkland Islands Government Air Service
FL
Flight Level
FOI
Flight Operations Inspector
FTL
Flight Time Limitations
GA
General Aviation
GOA
Government of Anguilla
GOM
Government of Montserrat
HF
Human Factors
HIAL
Highlands and Islands Airport Ltd
IATA
International Air Transport Association
ICAO
International Civil Aviation Organisation
ILS
Instrument Landing System
IMC
Instrument Meteorological Conditions
IR
Implementing Rule (EASA)
IR
Instrument Rating (pilot qualification)
ISO
International Organisation for Standardisation
iSTARS
Integrated Safety Trend and Reporting System
JAA
Joint Aviation Authorities
JAR
Joint Aviation Requirements
LDA
Landing Distance Available
LLP
Limited Life Parts
MATS
Manual of Air Traffic Services
MCM
Maintenance Control Manual
MCW
Ministry of Communications and Works
MEL
Minimum Equipment List
MET
Meteorology
METAR
Meteorological Aerodrome Report
MOE
Maintenance Organisation Exposition
MOR
Mandatory Occurrence Report
MoU
Memorandum of Understanding
MPA
Mount Pleasant Airfield (FI)
MSL
Mean Sea Level
NAA
National Aviation Authorities
NASP
National Aviation Security Programme
NATS
National Air Traffic Services
NFPA
National Fire Protection Association
NOTAM
Notices to Airmen
OCA/ H
Obstacle Clearance Altitude/ Height
OECS
Organisation of Eastern Caribbean States
OFZ
Obstacle Free Zone
OJT
On the Job Training
Ops
Operations
OT
UK Overseas Territory/Territories
OTAA
Overseas Territory Aviation Authority
OTAR
Overseas Territories Aviation Requirements
OTIDS
Overseas Territories Institutional Development Study
OTSPC
Overseas Territories Safety and Performance Council
PAC
Provo Airport Company  (TCI)
PAPI
Precision Approach Path Indicator
PCN
Pavement Classification Number
PIC
Pilot in Command
PPL
Private Pilot's Licence
PRAM
Project Risk Assessment and Management
PS
Permanent Secretary
PtF
Permit to Fly
QA
Quality Assurance
QC
Quality Control
QMS
Quality Management System
RESA
Runway End Safety Area
RFFS
Rescue and Fire Fighting Services
RVR
Runway Visual Range
SARPs
Standards and Recommended Practices (ICAO)
SATCO
Senior Air Traffic Control officer
SHEL
Software/ Hardware/ Environment/ Livewire
SI
Statutory Instrument
SMS
Safety Management System
SOMS
Safety Oversight Management Systems
SSP
State Safety Programme
STOL
Short Take Off and Landing
SYNOPS
Synoptic Report
TAF
Terminal Aerodrome Forecast
TCDS
Type Certificate Data Sheet
TCI
Turks and Caicos Islands
TMA
Terminal Manoeuvring Area
TODA
Take Off Distance Available
TORA
Take Off Run Available
UKCAA
Civil Aviation Authority (UK)
USOAP
Universal Safety Oversight Audit Programme
VMC
Visual Meteorological Conditions
VOR
VHF Omni-Range (navigational aid)
WAFC
World Area Forecasting Centre
WSI
Weather Services Incorporated