Appendix
A. International NOTAM (Q) Codes
This appendix is to be used to interpret
the contents of coded international NOTAMs. A NOTAM code group contains five
letters.
a. The
first letter is always the letter “Q” to indicate a code abbreviation for
use in the composition of NOTAMs.
b. The
second and third letters identify the subject being reported. (See Second
and Third Letter Decode Tables).
c. The
fourth and fifth letters identify the status of operation of the subject
being reported. (See Fourth and Fifth Letter Decode Tables).
Second and Third
Letter Decode Tables
ATM Airspace Organization (A)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
AA
|
Minimum altitude (specify en
route/crossing/safe)
|
mnm alt
|
AC
|
Class B, C, D, or E Surface Area
|
ctr
|
AD
|
Air defense identification zone
|
adiz
|
AE
|
Control area
|
cta
|
AF
|
Flight information region
|
fir
|
AH
|
Upper control area
|
uta
|
AL
|
Minimum usable flight level
|
mnm usable fl
|
AN
|
Area navigation route
|
rnav rte
|
AO
|
Oceanic control area
|
oca
|
AP
|
Reporting point (specify name or
coded designator)
|
rep
|
AR
|
ATS route (specify)
|
ats route
|
AT
|
Terminal control area
|
tma
|
AU
|
Upper flight information region
|
uir
|
AV
|
Upper advisory area
|
uda
|
AX
|
Significant point
|
sig
|
AZ
|
Aerodrome traffic zone
|
atz
|
CNS Communications and Surveillance Facilities
(C)
|
Code
|
Signification
|
Uniform
Abbreviated Phraseology
|
CA
|
Air/ground facility (specify service
and frequency)
|
a/g fac
|
CB
|
Automatic
dependent surveillance — broadcast (details)
|
ads-b
|
CC
|
Automatic
dependent surveillance — contract (details)
|
ads-c
|
CD
|
Controllerpilot data link communications (details)
|
cpdlc
|
CE
|
En route surveillance radar
|
rsr
|
CG
|
Ground controlled approach system
(GCA)
|
gca
|
CL
|
Selective calling system (SELCAL)
|
selcal
|
CM
|
Surface movement radar
|
smr
|
CP
|
Precision approach radar (PAR)
(specify runway)
|
par
|
CR
|
Surveillance radar element of
precision approach radar system
(specify wavelength)
|
sre
|
CS
|
Secondary surveillance radar (SSR)
|
ssr
|
CT
|
Terminal area surveillance radar
(TAR)
|
tar
|
Second and Third Letter Decode Tables (continued)
AGA Facilities and Services (F)
|
Code
|
Signification
|
Uniform
Abbreviated Phraseology
|
FA
|
Aerodrome
|
ad
|
FB
|
Friction measuring device (specify
type)
|
Friction measuring device
|
FC
|
Ceiling measurement equipment
|
ceiling measurement eqpt
|
FD
|
Docking system (specify AGNIS, BOLDS,
etc.)
|
dckg system
|
FE
|
Oxygen (specify type)
|
oxygen
|
FF
|
Fire fighting and rescue
|
fire and rescue
|
FG
|
Ground movement control
|
gnd mov ctl
|
FH
|
Helicopter alighting area/platform
|
hel alighting area
|
FI
|
Aircraft de-icing (specify)
|
acft de-ice
|
FJ
|
Oils (specify type)
|
oil
|
FL
|
Landing direction indicator
|
ldi
|
FM
|
Meteorological service (specify type)
|
met
|
FO
|
Fog dispersal system
|
fog dispersal
|
FP
|
Heliport
|
heliport
|
FS
|
Snow removal equipment
|
snow removal eqpt
|
FT
|
Transmissometer (specify runway and,
where applicable, designator(s) of transmissometer(s))
|
transmissometer
|
FU
|
Fuel availability
|
fuel avbl
|
FW
|
Wind direction indicator
|
wdi
|
FZ
|
Customs/immigration
|
Cust/immigration
|
CNS GNSS Services (G)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
GA
|
GNSS airfieldspecific operations
(specify operation)
|
gnss airfield
|
GW
|
GNSS areawide operations (specify
operation)
|
gnss area
|
CNS Instrument and Microwave Landing System
(I)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
IC
|
Instrument landing system (specify
runway)
|
ils
|
ID
|
DME associated with ILS
|
ils dme
|
IG
|
Glide path (ILS) (specify runway)
|
ils gp
|
II
|
Inner marker (ILS) (specify runway)
|
ils im
|
IL
|
Localizer (ILS) (specify runway)
|
ils loc
|
IM
|
Middle marker (ILS) (specify runway)
|
ils mm
|
IN
|
Localizer (not associated with ILS)
|
loc
|
IO
|
Outer marker (ILS) (specify runway)
|
ils om
|
IS
|
ILS Category I (specify runway)
|
ils cat I
|
IT
|
ILS Category II (specify runway)
|
ils cat II
|
IU
|
ILS Category III (specify runway)
|
ils cat III
|
IW
|
Microwave landing system (MLS)
(specify runway)
|
mls
|
IX
|
Locator, outer (ILS) (specify runway)
|
ils lo
|
IY
|
Locator, middle (ILS) (specify
runway)
|
ils lm
|
Second and Third Letter Decode Tables (continued)
AGA Lighting Facilities (L)
|
Code
|
Signification
|
Uniform
Abbreviated Phraseology
|
LA
|
Approach lighting system (specify
runway and type)
|
als
|
LB
|
Aerodrome beacon
|
abn
|
LC
|
Runway centre line lights (specify
runway)
|
rcll
|
LD
|
Landing direction indicator lights
|
ldi lgt
|
LE
|
Runway edge lights (specify runway)
|
redl
|
LF
|
Sequenced flashing lights (specify
runway)
|
sequenced flg lgt
|
LG
|
Pilot-controlled lighting
|
pcl
|
LH
|
High intensity runway lights (specify
runway)
|
high intst rwy lgt
|
LI
|
Runway end identifier lights (specify
runway)
|
rwy end id lgt
|
LJ
|
Runway alignment indicator lights
(specify runway)
|
rai lgt
|
LK
|
Category II components of approach
lighting system (specify runway)
|
category II components als
|
LL
|
Low intensity runway lights (specify
runway)
|
low intst rwy lgt
|
LM
|
Medium intensity runway lights
(specify runway)
|
medium intst rwy lgt
|
LP
|
Precision approach path indicator
(specify runway)
|
papi
|
LR
|
All landing area lighting facilities
|
ldg area lgt fac
|
LS
|
Stopway lights (specify runway)
|
stwl
|
LT
|
Threshold lights (specify runway)
|
thr lgt
|
LU
|
Helicopter approach path indicator
|
hapi
|
LV
|
Visual approach slope indicator
system (specify type and runway)
|
vasis
|
LW
|
Heliport lighting
|
heliport lgt
|
LX
|
Taxiway centre line lights (specify
taxiway)
|
twy cl lgt
|
LY
|
Taxiway edge lights (specify taxiway)
|
twy edge lgt
|
LZ
|
Runway touchdown zone lights (specify
runway)
|
rtzl
|
AGA Movement and Landing Area (M)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
MA
|
Movement area
|
mov area
|
MB
|
Bearing strength (specify part of
landing area or movement area)
|
bearing strength
|
MC
|
Clearway (specify runway)
|
cwy
|
MD
|
Declared distances (specify runway)
|
declared dist
|
MG
|
Taxiing guidance system
|
tgs
|
MH
|
Runway arresting gear (specify
runway)
|
rag
|
MK
|
Parking area
|
prkg area
|
MM
|
Daylight markings (specify threshold,
centre line, etc.)
|
day markings
|
MN
|
Apron
|
apron
|
MO
|
Stopbar (specify runway)
|
rag
|
MP
|
Aircraft stands (specify)
|
acft stand
|
MR
|
Runway (specify runway)
|
rwy
|
MS
|
Stopway (specify runway)
|
swy
|
MT
|
Threshold (specify runway)
|
thr
|
MU
|
Runway turning bay (specify runway)
|
rwy turning bay
|
MW
|
Strip/shoulder (specify runway)
|
Strip/shoulder
|
MX
|
Taxiway(s) (specify)
|
twy
|
MY
|
Rapid exit taxiway (specify)
|
Rapid exit twy
|
Second and Third Letter Decode Tables (continued)
COM Terminal and En Route Navigation
Facilities (N)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
NA
|
All radio navigation facilities
(except...)
|
all rdo nav fac
|
NB
|
Nondirectional radio beacon
|
ndb
|
NC
|
DECCA
|
decca
|
ND
|
Distance measuring equipment (DME)
|
dme
|
NF
|
Fan marker
|
fan mkr
|
NL
|
Locator (specify identification)
|
l
|
NM
|
VOR/DME
|
vor/dme
|
NN
|
TACAN
|
tacan
|
NO
|
OMEGA
|
omega
|
NT
|
VORTAC
|
vortac
|
NV
|
VOR
|
vor
|
Other Information (O)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
OA
|
Aeronautical information service
|
ais
|
OB
|
Obstacle (specify details)
|
obst
|
OE
|
Aircraft entry requirements
|
acft entry rqmnts
|
OL
|
Obstacle lights on ... (specify)
|
obst lgt
|
OR
|
Rescue coordination centre
|
rcc
|
ATM Air Traffic Procedures (P)
|
Code
|
Signification
|
Uniform
Abbreviated Phraseology
|
PA
|
Standard instrument arrival (specify
route designator)
|
star
|
PB
|
Standard VFR arrival
|
stc vfr arr
|
PC
|
Contingency procedures
|
contingency proc
|
PD
|
Standard instrument departure
(specify route designator)
|
sid
|
PE
|
Standard VFR departure
|
stf vfr dep
|
PF
|
Flow control procedure
|
flow ctl proc
|
PH
|
Holding procedure
|
hldg proc
|
PI
|
Instrument approach procedure
(specify type and runway)
|
instr apch proc
|
PK
|
VFR approach procedure
|
vfr apch proc
|
PL
|
Flight plan processing (filing and
related contingency)
|
fpl
|
PM
|
Aerodrome operating minima (specify
procedure and amended minimum)
|
opr minima
|
PN
|
Noise operating restriction
|
noise opr restrictions
|
PO
|
Obstacle clearance altitude and
height (specify procedure)
|
oca och
|
PR
|
Radio failure procedure
|
rdo failure proc
|
PT
|
Transition altitude or transition
level (specify)
|
ta/trl
|
PU
|
Missed approach procedure (specify
runway)
|
missed apch proc
|
PX
|
Minimum holding altitude (specify
fix)
|
mnm hldg alt
|
PZ
|
ADIZ procedure
|
adiz proc
|
Second and Third Letter Decode Tables (continued)
Navigation Warnings: Airspace Restrictions (R)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
RA
|
Airspace reservation (specify)
|
airspace reservation
|
RD
|
Danger area (specify)
|
..d..
|
RM
|
Military operating area
|
moa
|
RO
|
Overflying of ... (specify)
|
overflying
|
RP
|
Prohibited area (specify)
|
..p..
|
RR
|
Restricted area (specify)
|
..r..
|
RT
|
Temporary restricted area (specify
area)
|
tempo restricted area
|
ATM Air Traffic and VOLMET Services (S)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
SA
|
Automatic terminal information
service
|
atis
|
SB
|
ATS reporting office
|
aro
|
SC
|
Area control centre
|
acc
|
SE
|
Flight information service
|
fis
|
SF
|
Aerodrome flight information service
|
afis
|
SL
|
Flow control centre
|
flow ctl centre
|
SO
|
Oceanic area control centre
|
oac
|
SP
|
Approach control service
|
app
|
SS
|
Flight service station
|
fss
|
ST
|
Aerodrome control tower
|
twr
|
SU
|
Upper area control centre
|
uac
|
SV
|
VOLMET broadcast
|
volmet
|
SY
|
Upper advisory service (specify)
|
upper advisory ser
|
Navigation Warnings: Warnings (W)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
WA
|
Air display
|
air display
|
WB
|
Aerobatics
|
aerobatics
|
WC
|
Captive balloon or kite
|
captive balloon/kite
|
WD
|
Demolition of explosives
|
demolition of explosives
|
WE
|
Exercises (specify)
|
exer
|
WF
|
Air refueling
|
air refueling
|
WG
|
Glider flying
|
gld fly
|
WH
|
Blasting
|
blasting
|
WJ
|
Banner/target towing
|
banner/target towing
|
WL
|
Ascent of free balloon
|
ascent of free balloon
|
WM
|
Missile, gun or rocket firing
|
Missile/gun/rocket/frng
|
WP
|
Parachute jumping exercise,
paragliding, or hang gliding
|
Pje/paragliding/hang gliding
|
WR
|
Radioactive materials or toxic
chemicals (specify)
|
pje
|
WS
|
Burning or blowing gas
|
burning or blowing gas
|
WT
|
Mass movement of aircraft
|
mass mov of acft
|
WU
|
Unmanned aircraft
|
formation flt
|
WV
|
Formation flight
|
formation flt
|
WW
|
Significant volcanic activity
|
formation flt
|
WY
|
Aerial survey
|
model flying
|
WZ
|
Model flying
|
model flying
|
Fourth and Fifth Letter Decode Tables
Availability (A)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
AC
|
Withdrawn for maintenance
|
withdrawn maint
|
AD
|
Available for daylight operation
|
avbl day ops
|
AF
|
Flight checked and found reliable
|
fltck okay
|
AG
|
Operating but ground checked only,
awaiting flight check
|
opr but gnd ck only, awaiting fltck
|
AH
|
Hours of service are now…(specify)
|
hr ser
|
AK
|
Resumed normal operations
|
okay
|
AL
|
Operative (or reoperative) subject to
previously published limitations/conditions
|
Opr subj previous cond
|
AM
|
Military operations only
|
mil ops only
|
AN
|
Available for night operation
|
avbl night ops
|
AO
|
Operational
|
opr
|
AP
|
Available, prior permission required
|
avbl, ppr
|
AR
|
Available on request
|
avbl o/r
|
AS
|
Unserviceable
|
u/s
|
AU
|
Not available (specify reason if
appropriate)
|
not avbl
|
AW
|
Completely withdrawn
|
withdrawn
|
AX
|
Previously promulgated shutdown has
been canceled
|
promulgated shutdown cnl
|
Changes (C)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
CA
|
Activated
|
act
|
CC
|
Completed
|
cmpl
|
CD
|
Deactivated
|
deactivated
|
CE
|
Erected
|
erected
|
CF
|
Operating frequency(ies) changed to
|
opr freq changed to
|
CG
|
Downgraded to
|
downgraded to
|
CH
|
Changed
|
changed
|
CI
|
Identification or radio call sign
changed to
|
Ident/rdo call sign changed to
|
CL
|
Realigned
|
realigned
|
CM
|
Displaced
|
displaced
|
CN
|
Canceled
|
cnl
|
CO
|
Operating
|
opr
|
CP
|
Operating on reduced power
|
opr reduced pwr
|
CR
|
Temporarily replaced by
|
tempo rplcd by
|
CS
|
Installed
|
instl
|
CT
|
On test, do not use
|
on test, do not use
|
Fourth and Fifth Letter Decode Tables (continued)
Hazard Conditions (H)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
HA
1) Poor
2) Medium/Poor
3) Medium
4) Medium/Good 5) Good
|
Braking action is ...
|
ba is…
|
HB
|
Friction coefficient is ... (specify
friction measurement device used)
|
friction coefficient is
|
HC
|
Covered by compacted snow to depth of
|
cov compacted snow depth
|
HD
|
Covered by dry snow to a depth of
|
cov dry snow depth
|
HE
|
Covered by water to a depth of
|
cov water depth
|
HF
|
Totally free of snow and ice
|
free of sn and ice
|
HG
|
Grass cutting in progress
|
grass cutting inpr
|
HH
|
Hazard due to (specify)
|
hazard due
|
HI
|
Covered by ice
|
cov ice
|
HJ
|
Launch planned ... (specify balloon
flight identification or project code name, launch site, planned
period of launch(es)-date/time, expected climb direction, estimate
time to pass 18 000 m (60 000 ft), or reaching cruise level if at or
below 18 000 m (60 000 ft), together with estimated location)
|
launch plan
|
HK
|
Bird migration in progress
|
bird migration inpr
|
HL
|
Snow clearance completed
|
sn clr cmpl
|
HM
|
Marked by
|
marked by
|
HN
|
Covered by wet snow or slush to a
depth of
|
cov wet sn/slush depth
|
HO
|
Obscured by snow
|
obscured by sn
|
HP
|
Snow clearance in progress
|
sn clr inpr
|
HQ
|
Operation canceled ... (specify
balloon flight identification or project code name)
|
opr cnl
|
HR
|
Standing water
|
standing water
|
HS
|
Sanding in progress
|
sanding inpr
|
HT
|
Approach according to signal area
only
|
apch according signal
|
HU
|
Launch in progress ... (specify
balloon flight identification or project code name, launch site,
date/time of launch(es), estimated time passing 18 000 m (60 000
ft), or reaching cruising level if at or below 18 000 m (60 000 ft),
together with estimated location, estimated date/time of termination
of the flight, and planned location of ground contact when
applicable)
|
launch inpr
|
HV
|
Work completed
|
work cmpl
|
HW
|
Work in progress
|
wip
|
HX
|
Concentration of birds
|
bird concentration
|
HY
|
Snow banks exist (specify height)
|
sn banks hgt
|
HZ
|
Covered by frozen ruts and ridges
|
cov frozen ruts and ridges
|
Fourth and Fifth Letter Decode Tables (continued)
Limitations (L)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
LA
|
Operating on auxiliary power supply
|
opr aux pwr
|
LB
|
Reserved for aircraft based therein
|
reserved for acft based therein
|
LC
|
Closed
|
clsd
|
LD
|
Unsafe
|
unsafe
|
LE
|
Operating without auxiliary power
supply
|
opr wo aux pwr
|
LF
|
Interference from
|
interference fm
|
LG
|
Operating without identification
|
opr without ident
|
LH
|
Unserviceable for aircraft heavier
than
|
u/s acft heavier than
|
LI
|
Closed to IFR operations
|
clsd ifr ops
|
LK
|
Operating as a fixed light
|
opr as f lgt
|
LL
|
Usable for length of...and width
of...
|
usable len…/wid…
|
LN
|
Closed to all night operations
|
clsd to all ngt ops
|
LP
|
Prohibited to
|
prohibited to
|
LR
|
Aircraft restricted to runways and
taxiways
|
acft restricted to rwy and twy
|
LS
|
Subject to interruption
|
subj intrp
|
LT
|
Limited to
|
ltd to
|
LV
|
Closed to VFR operations
|
clsd vfr ops
|
LW
|
Will take place
|
will take place
|
LX
|
Operating but caution advised due to
|
opr but ctn advised due to
|
Other (XX)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
XX
|
Where 4th and 5th letter Code does
not cover the situation, use XX and supplement by plain language
|
(plain language following the NOTAM
Code)
|
|