JO 7110.65 — Air Traffic Control
JO 7110.65 2-3-9
CLEARANCE STATUS
Use an appropriate clearance symbol followed by a dash (-) and other pertinent information to clearly show the clearance status of an aircraft. To indicate delay status use:
The symbol “H” at the clearance limit when holding instructions have been included in the aircraft's original clearance. Show detailed holding information following the dash when holding differs from the established pattern for the fix; i.e., turns, leg lengths, etc.
The symbols “F” or “O” to indicate the clearance limit when a delay is not anticipated. TBL 2-3-10 Aircraft Equipment Suffixes Separation Standard
Navigation Capability
Transponder Capability
Suffix
RVSM
Any
Failed transponder
/H
Any
Failed Mode C
/O
No RNAV, No GNSS
Transponder with Mode C
/W
RNAV, No GNSS
Transponder with Mode C
/Z
GNSS
Transponder with Mode C
/L
Non-RVSM
No DME
No transponder
/X
Transponder, no Mode C
/T
Transponder with Mode C
/U
DME
No transponder
/D
Transponder, no Mode C
/B
Transponder with Mode C
/A
TACAN
No transponder
/M
Transponder, no Mode C
/N
Transponder with Mode C
/P
RNAV,
No GNSS
No transponder
/Y
Transponder, no Mode C
/C
Transponder with Mode C
/I
GNSS
No transponder
/V
Transponder, no Mode C
/S
Transponder with Mode C
/G
Retrieved from ecfr.gov on July 20, 2026.