Appendix 1. INTERNATIONAL NOTAM (Q) CODES
A-1-1. INTERNATIONAL NOTAM (Q) CODES
This appendix is to be used to interpret the contents of coded international NOTAMs.
a. A NOTAM code group contains five letters. 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).
|
THE NOTAM CODE
DECODE
SECOND AND THIRD LETTERS
|
AGA Lighting Facilities (L)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
LA
|
Approach lighting system (specify runway and type)
|
apch lgt
|
LB
|
Aerodrome beacon
|
abn
|
LC
|
Runway center line lights (specify runway)
|
rwy centreline lgt
|
LD
|
Landing direction indicator lights
|
ldi lgt
|
LE
|
Runway edge lights (specify runway)
|
rwy edge lgt
|
LF
|
Sequenced flashing lights (specify runway)
|
sequenced flg lgt
|
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)
|
rwy alignment indicator lgt
|
LK
|
Category II components of approach lighting system (specify runway)
|
category II components apch lgt
|
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 (PAPI) (specify runway)
|
papi
|
LR
|
All landing area lighting facilities
|
ldg area lgt fac
|
LS
|
Stopway lights (specify runway)
|
swy lgt
|
LT
|
Threshold lights (specify runway)
|
thr lgt
|
LV
|
Visual approach slope indicator system (specify type and runway)
|
vasis
|
LW
|
Heliport lighting
|
heliport lgt
|
LX
|
Taxiway centre line lights (specify taxiway)
|
twy centreline lgt
|
LY
|
Taxiway edge lights (specify taxiway)
|
twy edge lgt
|
LZ
|
Runway touchdown zone lights (specify runway)
|
rwy tdz lgt
|
THE NOTAM
CODE
DECODE
SECOND AND THIRD LETTERS
|
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
|
tax guidance system
|
MH
|
Runway arresting gear (specify runway)
|
rwy arst gear
|
MK
|
Parking area
|
prkg area
|
MM
|
Daylight markings (specify threshold, centre
line, etc.)
|
day markings
|
MN
|
Apron
|
apron
|
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 (specify runway)
|
strip
|
MX
|
Taxiway(s) (specify)
|
twy
|
THE NOTAM CODE
DECODE
SECOND AND THIRD LETTERS
|
AGA Facilities and
Services (F)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
FA
|
Aerodrome
|
ad
|
FB
|
Braking action measurement equipment (specify
type)
|
ba measurement eqpt
|
FC
|
Ceiling measurement equipment
|
ceiling measurement eqpt
|
FD
|
Docking system (specify AGNIS, BOLDS, etc.)
|
dckg system
|
FF
|
Fire fighting and rescue
|
fire and rescue
|
FG
|
Ground movement control
|
gnd mov ctl
|
FH
|
Helicopter alighting area/platform
|
hel alighting area
|
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
|
cust
|
THE NOTAM CODE
DECODE
SECOND AND THIRD LETTERS
|
COM Communications and
Radar Facilities (C)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
CA
|
Air/ground (specify service and frequency)
|
a/g fac
|
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
|
THE NOTAM
CODE
DECODE
SECOND AND THIRD LETTERS
|
COM Instrument and Microwave
Landing System (I)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
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 liz
|
IM
|
Middle marker (ILS) (specify runway)
|
ils mm
|
IO
|
Outer marker (ILS) (specify runway)
|
ils om
|
IS
|
ILS Category I (specify runway)
|
ils I
|
IT
|
ILS Category II (specify runway)
|
ils II
|
IU
|
ILS Category III (specify runway)
|
ils 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
|
THE NOTAM
CODE
DECODE
SECOND AND THIRD LETTERS
|
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
|
NX
|
Direction finding station (specify type and
frequency)
|
df
|
THE NOTAM
CODE
DECODE
SECOND AND THIRD LETTERS
|
RAC 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)
|
adiz
|
AE
|
Control area (CTA)
|
cta
|
AF
|
Flight information region (FIR)
|
fir
|
AH
|
Upper control area (UTA)
|
uta
|
AL
|
Minimum usable flight level
|
mnm usable fl
|
AN
|
Area navigation route
|
rnav route
|
AO
|
Oceanic control area (OCA)
|
oca
|
AP
|
Reporting point (specify name or Coded
designator)
|
rep
|
AR
|
ATS route (specify)
|
ats route
|
AT
|
Class B Airspace
|
tma
|
AU
|
Upper flight information region (UIR)
|
uir
|
AV
|
Upper advisory area (UDA)
|
uda
|
AX
|
Intersection (INT)
|
int
|
AZ
|
Aerodrome traffic zone (ATZ)
|
atz
|
THE NOTAM
CODE
DECODE
SECOND AND THIRD LETTERS
|
RAC Air Traffic and
VOLMET Services (S)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
SA
|
Automatic terminal information service (ATIS)
|
atis
|
SB
|
ATS reporting office
|
aro
|
SC
|
Area control centre (ACC)
|
acc
|
SE
|
Flight information service (FIS)
|
fis
|
SF
|
Aerodrome flight information service (AFIS)
|
afis
|
SL
|
Flow control centre
|
flow ctl centre
|
SO
|
Oceanic area control centre (OAC)
|
oac
|
SP
|
Approach control service (APP)
|
app
|
SS
|
Flight service station (FSS)
|
fss
|
ST
|
Aerodrome control tower (TWR)
|
twr
|
SU
|
Upper area control centre (UAC)
|
uac
|
SV
|
VOLMET broadcast
|
volmet
|
SY
|
Upper advisory service (specify)
|
advisory ser
|
THE NOTAM
CODE
DECODE
SECOND AND THIRD LETTERS
|
RAC Air Traffic
Procedures (P)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
PA
|
Standard instrument arrival (STAR) (specify
route designator)
|
star
|
PD
|
Standard instrument departure (SID) (specify
route designator)
|
sid
|
PF
|
Flow control procedure
|
flow ctl proc
|
PH
|
Holding procedure
|
hldg proc
|
PI
|
Instrument approach procedure (specify type and
runway)
|
inst apch proc
|
PL
|
Obstacle clearance limit (specify procedure)
|
ocl
|
PM
|
Aerodrome operating minima (specify procedure
and amended minimum)
|
opr minima
|
PO
|
Obstacle clearance altitude
|
oca
|
PP
|
Obstacle clearance height
|
och
|
PR
|
Radio failure procedure
|
radio failure proc
|
PT
|
Transition altitude
|
transition alt
|
PU
|
Missed approach procedure (specify runway)
|
missed apch proc
|
PX
|
Minimum holding altitude (specify fix)
|
mnm hldg alt
|
PZ
|
ADIZ procedure
|
adiz proc
|
THE NOTAM
CODE
DECODE
SECOND AND THIRD LETTERS
|
Navigation Warnings:
Airspace Restrictions (R)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
RA
|
Airspace reservation (specify)
|
airspace reservation
|
RD
|
Danger area (specify national prefix and
number)
|
..d..
|
RO
|
Overflying of ... (specify)
|
overflying
|
RP
|
Prohibited area (specify national prefix and
number)
|
..p..
|
RR
|
Restricted area (specify national prefix and
number)
|
..r..
|
RT
|
Temporary restricted area
|
tempo restricted
|
THE NOTAM
CODE
DECODE
SECOND AND THIRD LETTERS
|
Navigation Warnings:
Warnings (W)
|
Code
|
Signification
|
Uniform Abbreviated Phraseology
|
WA
|
Air display
|
air display
|
WB
|
Aerobatics
|
aerobatics
|
WC
|
Captive balloon or kite
|
captive balloon or kite
|
WD
|
Demolition of explosives
|
demolition of explosives
|
WE
|
Exercises (specify)
|
exer
|
WF
|
Air refueling
|
air refueling
|
WG
|
Glider flying
|
glider flying
|
WJ
|
Banner/target towing
|
banner/target towing
|
WL
|
Ascent of free balloon
|
ascent of free balloon
|
WM
|
Missile, gun or rocket firing
|
frng
|
WP
|
Parachute jumping exercise (PJE)
|
pje
|
WS
|
Burning or blowing gas
|
burning or blowing gas
|
WT
|
Mass movement of aircraft
|
mass mov of acft
|
WV
|
Formation flight
|
formation flt
|
WZ
|
model flying
|
model flying
|
THE NOTAM
CODE
DECODE
SECOND AND THIRD LETTERS
|
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
|
THE NOTAM
CODE
DECODE
FOURTH AND FIFTH LETTERS
|
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 awaiting fltck
|
AH
|
Hours of service are now
|
hr ser
|
AK
|
Resumed normal operations
|
okay
|
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
cancelled
|
promulgated shutdown cnl
|
THE NOTAM
CODE
DECODE
FOURTH AND FIFTH LETTERS
|
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
|
freq change
|
CG
|
Downgraded to
|
downgraded to
|
CH
|
Changed
|
changed
|
CI
|
Identification or radio call sign changed to
|
ident change
|
CL
|
Realigned
|
realigned
|
CM
|
Displaced
|
displaced
|
CO
|
Operating
|
opr
|
CP
|
Operating on reduced power
|
opr reduced pwr
|
CR
|
Temporarily replaced by
|
tempo rplcd by
|
CS
|
Installed
|
installed
|
CT
|
On test, do not use
|
on test, do not use
|
THE NOTAM
CODE
DECODE
FOURTH AND FIFTH LETTERS
|
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
|
Braking coefficient is ... (specify measurement
device used)
|
brkg 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 snow and ice
|
HG
|
Grass cutting in progress
|
grass cutting
|
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), together with estimated location)
|
launch plan
|
HK
|
Migration in progress
|
migration inpr
|
HL
|
Snow clearance completed
|
snow clr cmpl
|
HM
|
Marked by
|
marked by
|
HN
|
Covered by wet snow or slush to a depth of
|
cov wet snow depth
|
HO
|
Obscured by snow
|
obscured by snow
|
HP
|
Snow clearance in progress
|
snow clr inpr
|
HQ
|
Operation cancelled ... (specify balloon flight
identification or project Code name)
|
opr cnl
|
HR
|
Standing water
|
standing water
|
HS
|
Sanding in progress
|
sanding
|
HT
|
Approach according to signal area only
|
apch according signal area only
|
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)
|
snow banks hgt
|
HZ
|
Covered by frozen ruts and ridges
|
cov frozen ruts and ridges
|
THE NOTAM CODE
DECODE
FOURTH AND FIFTH LETTERS
|
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 without aux pwr
|
LF
|
Interference from
|
interference from
|
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 length/width
|
LN
|
Closed to all night operations
|
clsd night 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
|
limited 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 caution due
|
THE NOTAM CODE
DECODE
FOURTH AND FIFTH LETTERS
|
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)
|
|