STANDARD CLEARANCE FOR DEPARTING AIRCRAFT

GENERAL
The appropriate ATS authority should, wherever possible, establish standardized procedures for transfer of control between
the ATC units concerned, and standard clearances for departing aircraft.
COORDINATION
Where standard clearances for departing aircraft have been agreed to between the units concerned, the
aerodrome control tower will normally issue the appropriate standard clearance without prior coordination with or approval
from the approach control unit or ACC.  Prior coordination of clearances should be required only in the event that a variation to the standard
clearance or the standardized transfer of control procedures is necessary or desirable for operational reasons.
Provision shall be made to ensure that the approach control unit at all times is kept informed of the
sequence in which aircraft will depart as well as the runway to be used.
Provision shall be made to display the designators of assigned SIDs to the aerodrome control tower, the
approach control unit and/or the ACC as applicable.
CONTENTS
Standard clearances for departing aircraft shall contain the following items:
 a) aircraft identification;
 b) clearance limit, normally destination              aerodrome;
 c) designator of the assigned SID, if.                   applicable;
 d) cleared level;
 e) allocated SSR code;
 f) any other necessary instructions or.               information not contained in the SID            description, e.g. instructions relating to
    change of frequency.

(source:DOC4444)