# 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 (a): Unless approved by the CAA in accordance with Subpart F of Annex V (Part-SPA), the operator shall not operate a two-engined aeroplane over a route that contains a point further from an adequate aerodrome, under standard conditions in still air, than the appropriate distance for the given type of aeroplane among the following:

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

(1) for performance class A aeroplanes with a maximum operational passenger seating configuration (MOPSC) of 20 or more, the distance flown in 60 minutes at the one-engine-inoperative (OEI) cruising speed determined in accordance with point (b);
(2) for performance class A aeroplanes with an MOPSC of 19 or less, the distance flown in 120 minutes or, subject to approval by the CAA, up to 180 minutes for turbojet aeroplanes, at the OEI cruising speed determined in accordance with point (b);
(3) for performance class B or C aeroplanes, whichever is less:
(i) the distance flown in 120 minutes at the OEI cruising speed determined in accordance with point (b);
(ii) 300 NM.

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Source: https://www.legislation.gov.uk/eur/2012/965/annex/IV/division/subpart+b/division/section+1/division/catopmpa140/division/a (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-965/annex-IV/division-subpart+b/division-section+1/division-catopmpa140/division-a
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.