# 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 (j): An aircraft operated in accordance with the visual flight rules which wishes to change to compliance with the instrument flight rules shall:

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

(1)if a flight plan was submitted, communicate the necessary changes to be effected to its current flight plan; or
(2)as required by SERA.4001(b), submit a flight plan to the appropriate air traffic services unit as soon as practicable and obtain a clearance prior to proceeding IFR when in controlled airspace.

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Source: https://www.legislation.gov.uk/eur/2012/923/annex/section/5/division/SERA.5005/division/j (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-923/annex/section-5/division-SERA.5005/division-j
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.