Originally Posted by
table
Dear All,
Would someone please educate me on these ATC terms: Clearance, Approval and Instruction?
For e.g. is permission to push back from gate a clearance or approval?
Thank you.
As mentioned, perhaps no universal definitions, but in my view:
ATC: "Callsign something Cleared to XXXX via YYY Flight level ZZZ" = Clearance
"Callsign something request deviation left due weather"
ATC: "approved" = approval
ATC: "Callsign something fly heading XXX" = Instruction
Many may disagree regarding headings but just my opinion.