~ For DoD Flight Only ~
The information displayed on the right represents all approved component/condition Q-Codes for the category:

A Q-Code is the combination of two codes:
The component code (2nd and 3rd letters)
The condition code (4th and 5th letters)

The data on the right is grouped by component codes.
Slightly indented and directly below the component codes are their associated conditions codes.
 
Air Traffic and VOLMET Services Q-Code Combinations
 
SA    AUTOMATIC TERMINAL INFORMATION SERVICE (ATIS)
         AH    HOURS OF SERVICE ARE
         AS    UNSERVICEABLE
         AU    NOT AVAILABLE
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CS    INSTALLED
         TT    HAZARD
         XX   
 
SB    ATS REPORT OFFICE
         AH    HOURS OF SERVICE ARE
         AW    COMPLETELY WITHDRAWN
         CS    INSTALLED
         LC    CLOSED
         LT    LIMITED TO
         TT    HAZARD
         XX   
 
SC    AREA CONTROL CENTER
         AH    HOURS OF SERVICE ARE
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CS    INSTALLED
         LC    CLOSED
         LT    LIMITED TO
         TT    HAZARD
         XX   
 
SE    FLIGHT INFORMATION SERVICE
         AH    HOURS OF SERVICE ARE
         AR    AVAILABLE, PRIOR PERMISSION REQUIRED
         AU    NOT AVAILABLE
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CS    INSTALLED
         LC    CLOSED
         LT    LIMITED TO
         XX   
 
SF    AERODROME FLIGHT INFORMATION SERVICE (AFIS)
         AH    HOURS OF SERVICE ARE
         AR    AVAILABLE, PRIOR PERMISSION REQUIRED
         AU    NOT AVAILABLE
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CS    INSTALLED
         LT    LIMITED TO
         TT    HAZARD
         XX   
 
SL    FLOW CONTROL CENTER
         AH    HOURS OF SERVICE ARE
         CS    INSTALLED
         LC    CLOSED
         LT    LIMITED TO
         TT    HAZARD
         XX   
 
SO    OCEANIC AREA CONTROL CENTER
         AH    HOURS OF SERVICE ARE
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CS    INSTALLED
         LC    CLOSED
         LT    LIMITED TO
         TT    HAZARD
         XX   
 
SP    APPROACH CONTROL
         AH    HOURS OF SERVICE ARE
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CS    INSTALLED
         LC    CLOSED
         LT    LIMITED TO
         TT    HAZARD
         XX   
 
SS    FLIGHT SERVICE STATION
         AH    HOURS OF SERVICE ARE
         AR    AVAILABLE, PRIOR PERMISSION REQUIRED
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CS    INSTALLED
         LC    CLOSED
         LT    LIMITED TO
         TT    HAZARD
         XX   
 
ST    AERODROME CONTROL TOWER
         AH    HOURS OF SERVICE ARE
         AS    UNSERVICEABLE
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CS    INSTALLED
         LC    CLOSED
         LT    LIMITED TO
         TT    HAZARD
         XX   
 
SU    UPPER AREA CONTROL CENTER
         AH    HOURS OF SERVICE ARE
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CS    INSTALLED
         LC    CLOSED
         LT    LIMITED TO
         TT    HAZARD
         XX   
 
SV    VOLMENT BROADCAST
         AH    HOURS OF SERVICE ARE
         AS    UNSERVICEABLE
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CS    INSTALLED
         LF    INTERFERENCE FROM
         LS    SUBJECT TO INTERRUPTION
         LT    LIMITED TO
         XX   
 
SY    UPPER ADVISORY SERVICE
         AH    HOURS OF SERVICE ARE
         AU    NOT AVAILABLE
         AW    COMPLETELY WITHDRAWN
         CF    FREQUENCY CHANGED TO
         CI    IDENTIFICATION OR RADIO CALL SIGN CHANGED TO
         CS    INSTALLED
         LT    LIMITED TO
         XX   
 
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