# Commission Regulation (EU) No 965/2012 of 5 October 2012 laying down technical requirements and administrative procedures related to air operations pursuant to Regulation (EC) No 216/2008 of the European Parliament and of the Council, Division (c): For cases where the intended flight path requires track changes of more than 15°, the operator does not need to consider those obstacles that have a lateral distance greater than:

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

(1)600 m, for flights under conditions allowing visual course guidance navigation; or
(2)900 m, for flights under all other conditions.

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Source: https://www.legislation.gov.uk/eur/2012/965/annex/IV/division/subpart+c/division/section+1/division/chapter+3/division/catpola310/division/c (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-965/annex-IV/division-subpart+c/division-section+1/division-chapter+3/division-catpola310/division-c
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.