# 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), Division SERA.14090: Specific communication procedures

Extent: E+W+S+N.I.

(a) Movement of vehicles
Phraseologies for the movement of vehicles, other than tow-tractors, on the manoeuvring area shall be the same as those used for the movement of aircraft, with the exception of taxi instructions, in which case the word ‘ PROCEED ’ shall be substituted for the word ‘ TAXI ’ when communicating with vehicles.
(b) Air traffic advisory service
Air traffic advisory service does not deliver ‘ clearances ’ but only ‘ advisory information ’ and it shall use the word ‘ advise ’ or ‘ suggest ’ when a course of action is proposed to an aircraft.
(c) Indication of heavy wake turbulence category
(1) For aircraft in the heavy wake turbulence category, the word ‘ Heavy ’ shall be included immediately after the aircraft call sign in the initial radiotelephony contact between such aircraft and ATS units.
(2) For specific aircraft in the heavy wake turbulence category, as identified by the competent authority, the word ‘ Super ’ shall be included immediately after the aircraft call sign in the initial radiotelephony contact between such aircraft and ATS units.
(d) Procedures related to weather deviation
When the pilot initiates communications with ATC, a rapid response may be obtained by stating ‘ WEATHER DEVIATION REQUIRED ’ to indicate that priority is desired on the frequency and for ATC response. When necessary, the pilot shall initiate communications using the urgency call ‘ PAN PAN ’ (preferably spoken three times).

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Source: https://www.legislation.gov.uk/eur/2012/923/annex/section/14/division/SERA.14090 (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-923/annex/section-14/division-SERA.14090
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.