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Commission Implementing Regulation (EU) No 923/2012 of 26 September 2012 laying down the common rules of the air and operational provisions regarding services and procedures in air navigation and amending Implementing Regulation (EU) No 1035/2011 and Regulations (EC) No 1265/2007, (EC) No 1794/2006, (EC) No 730/2006, (EC) No 1033/2006 and (EU) No 255/2010 (Text with EEA relevance)
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Clearances shall be issued solely for expediting and separating air traffic and be based on known traffic conditions which affect safety in aircraft operation. Such traffic conditions include not only aircraft in the air and on the manoeuvring area over which control is being exercised, but also any vehicular traffic or other obstructions not permanently installed on the manoeuvring area in use.
ATC units shall issue such ATC clearances as necessary to prevent collisions and to expedite and maintain an orderly flow of air traffic.
ATC clearances shall be issued early enough to ensure that they are transmitted to the aircraft in sufficient time for it to comply with them.]
Textual Amendments
F1Substituted by Commission Implementing Regulation (EU) 2016/1185 of 20 July 2016 amending Implementing Regulation (EU) No 923/2012 as regards the update and completion of the common rules of the air and operational provisions regarding services and procedures in air navigation (SERA Part C) and repealing Regulation (EC) No 730/2006 (Text with EEA relevance).
An air traffic control clearance shall indicate:
aircraft identification as shown in the flight plan;
clearance limit;
[F1route of flight, …
the route of flight shall be detailed in each clearance when deemed necessary; and
the phrase ‘ cleared via flight planned route ’ shall not be used when granting a re-clearance;]
level(s) of flight for the entire route or part thereof and changes of levels if required;
any necessary instructions or information on other matters such as approach or departure manoeuvres, communications and the time of expiry of the clearance.
ATC route clearances;
clearances and instructions to enter, land on, take off from, hold short of, cross, taxi and backtrack on any runway; and
runway-in-use, altimeter settings, SSR codes, newly assigned communication channels, level instructions, heading and speed instructions; and
transition levels, whether issued by the controller or contained in ATIS broadcasts.
When issuing a clearance covering a requested change in route or level, the exact nature of the change shall be included in the clearance.
When traffic conditions will not permit clearance of a requested change, the word ‘ UNABLE ’ shall be used. When warranted by circumstances, an alternative route or level shall be offered.
Textual Amendments
F2Inserted by Commission Implementing Regulation (EU) 2016/1185 of 20 July 2016 amending Implementing Regulation (EU) No 923/2012 as regards the update and completion of the common rules of the air and operational provisions regarding services and procedures in air navigation (SERA Part C) and repealing Regulation (EC) No 730/2006 (Text with EEA relevance).
For flights in areas where a transition altitude is established, the vertical position of the aircraft shall, except as provided for in (5) below, be expressed in terms of altitudes at or below the transition altitude and in terms of flight levels at or above the transition level. While passing through the transition layer, the vertical position shall be expressed in terms of flight levels when climbing and in terms of altitudes when descending.
The flight crew shall be provided with the transition level in due time prior to reaching it during descent.
[F3Except when it is known that the aircraft has already received the information in a directed transmission, a QNH altimeter setting shall be included in:
the descent clearance, when first cleared to an altitude below the transition level;
the approach clearance or the clearance to enter the traffic circuit;
the taxi clearance for departing aircraft.]
A QFE altimeter setting shall be provided to aircraft on request or on a regular basis in accordance with local arrangements.
When an aircraft which has been given clearance to land is completing its approach using atmospheric pressure at aerodrome elevation (QFE), the vertical position of the aircraft shall be expressed in terms of height above aerodrome elevation during that portion of its flight for which QFE may be used, except that it shall be expressed in terms of height above runway threshold elevation:
for instrument runways if the threshold is 2 m (7 ft) or more below the aerodrome elevation; and
for precision approach runways.
Textual Amendments
F3Words in Annex Section 8 SERA.8015 point (eb)(3) substituted (23.3.2023) by The Aviation Safety and Air Traffic Management (Amendment) Regulations 2022 (S.I. 2022/1235), regs. 1(3), 5(3)
Conditional phrases, such as ‘ behind landing aircraft ’ or ‘ after departing aircraft ’ , shall not be used for movements affecting the active runway(s), except when the aircraft or vehicles concerned are seen by the appropriate controller and pilot. The aircraft or vehicle causing the condition in the clearance issued shall be the first aircraft/vehicle to pass in front of the other aircraft concerned. In all cases, a conditional clearance shall be given in the following order and consist of:
the call sign;
the condition;
the clearance; and
a brief reiteration of the condition.]
when it has been possible, prior to departure, to coordinate the clearance between all the units under whose control the aircraft will come; or
when there is reasonable assurance that prior coordination will be effected between those units under whose control the aircraft will subsequently come.
Aircraft shall maintain the necessary two-way communication with the current air traffic control unit whilst obtaining a downstream clearance.
A clearance issued as a downstream clearance shall be clearly identifiable as such to the pilot.
Unless coordinated, downstream clearances shall not affect the aircraft’s original flight profile in any airspace, other than that of the air traffic control unit responsible for the delivery of the downstream clearance.
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