En-route
Altitude Management to Maintain Separation
ATC Instructions to Maintain a Level Before Any Change:
- MAINTAIN (level) [TO (significant point)]
- MAINTAIN (level) UNTIL PASSING (significant point)
- MAINTAIN (level) UNTIL (minutes) AFTER PASSING (significant point)
- MAINTAIN (level) UNTIL (time)
- MAINTAIN (level) UNTIL ADVISED BY (name of ATC unit)
- MAINTAIN (level) UNTIL FURTHER ADVISED
- MAINTAIN (level) WHILE IN CONTROLLED AIRSPACE
- MAINTAIN BLOCK (level) TO (level).
Note: The term "MAINTAIN" shall not be used in lieu of "DESCEND" or "CLIMB" when instructing an aircraft to change level.
Separation Instructions
ATC Instructions to Overfly a Significant Point at a Specific Time:
- CROSS (significant point) AT (time) [OR LATER (or OR BEFORE)]
- ADVISE IF ABLE TO CROSS (significant point) AT (time or level)
ATC Instructions for Speed Restrictions During Cruise:
- MAINTAIN MACH (number) [OR GREATER (or OR LESS)] [UNTIL (significant point)]
- DO NOT EXCEED MACH (number)
ATC Instructions for Specific Track to Maintain Separation:
- MAINTAIN TRACK BETWEEN (significant point) AND (significant point). REPORT ESTABLISHED ON THE TRACK
- CONFIRM ESTABLISHED ON THE TRACK BETWEEN (significant point) AND (significant point) [WITH ZERO OFFSET]
Pilot Responses:
- ESTABLISHED ON THE TRACK BETWEEN (significant point) AND (significant point) [WITH ZERO OFFSET]
- ESTABLISHED ON THE TRACK
Used when lateral VOR/GNSS separation confirmation of zero offset is required:
- CONFIRM ZERO OFFSET
- AFFIRM ZERO OFFSET
Track Parallel to the Cleared Route
ATC Instructions for Parallel Track Offsets:
- ADVISE IF ABLE TO PROCEED PARALLEL OFFSET
- PROCEED OFFSET (distance) RIGHT/LEFT OF (route) (track) [CENTRE LINE] [AT (significant point or time)] [UNTIL (significant point or time)]
- CANCEL OFFSET (instructions to rejoin cleared flight route or other information)
Vectoring Instructions
ATC Instructions for Vectoring:
- FLY HEADING (three digits)
- TURN LEFT (or RIGHT) HEADING (three digits) [reason]
- TURN LEFT (or RIGHT) (number of degrees) DEGREES [reason]
Other ATC Instructions in Vectoring Procedures:
- LEAVE (significant point) HEADING (three digits)
- CONTINUE HEADING (three digits)
- CONTINUE PRESENT HEADING
- STOP TURN HEADING (three digits)
- FLY HEADING (three digits), WHEN ABLE PROCEED DIRECT (name) (significant point)
- HEADING IS GOOD
ATC Instructions to Terminate Vectoring Procedure:
ATC Phraseology to Specify Reason for Vectoring:
- DUE TRAFFIC
- FOR SPACING
- FOR DELAY
- FOR DOWNWIND (or BASE, or FINAL)
ATC Instructions for Avoiding Action:
- DO YOU WANT VECTORS?
Pilot Response for Vectoring Guidance:
- REQUEST VECTORS
Holding Clearance
ATC Clearance for Holding Procedures:
- CLEARED (or PROCEED) TO (significant point, name of facility or fix) [MAINTAIN (or CLIMB or DESCEND TO) (level)] HOLD [(direction)] AS PUBLISHED EXPECT APPROACH CLEARANCE (or FURTHER CLEARANCE) AT (time)
Pilot Request for Holding Instructions (If No Published Parameters Exist):
- REQUEST HOLDING INSTRUCTIONS
ATC Clearance for IFR Holding Procedure (Detailed Clearance Required):
- CLEARED (or PROCEED) TO (significant point, name of facility or fix) [MAINTAIN (or CLIMB or DESCEND TO) (level)] HOLD [(direction)] [(specified) RADIAL, COURSE, INBOUND TRACK (three digits) DEGREES] [RIGHT (or LEFT) HAND PATTERN] [OUTBOUND TIME (number) MINUTES] EXPECT APPROACH CLEARANCE (or FURTHER CLEARANCE) AT (time) (additional instructions, if necessary)
- CLEARED TO THE (three digits) RADIAL OF THE (name) VOR AT (distance) DME FIX [MAINTAIN (or CLIMB or DESCEND TO) (level)] HOLD [(direction)] [RIGHT (or LEFT) HAND PATTERN] [OUTBOUND TIME (number) MINUTES] EXPECT APPROACH CLEARANCE (or FURTHER CLEARANCE) AT (time) (additional instructions, if necessary)
- CLEARED TO THE (three digits) RADIAL OF THE (name) VOR AT (distance) DME FIX [MAINTAIN (or CLIMB or DESCEND TO) (level)] HOLD BETWEEN (distance) AND (distance) DME [RIGHT (or LEFT) HAND PATTERN] EXPECT APPROACH CLEARANCE (or FURTHER CLEARANCE) AT (time) (additional instructions, if necessary)