EASA AIR OPS
Regulation (EU) 2019/1387
CAT.OP.MPA.140 Maximum distance from an adequate aerodrome for two-engined aeroplanes without an ETOPS approval

a) Unless approved by the competent authority in accordance with Annex V (Part-SPA), Subpart F, 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:

1) for performance class A aeroplanes with either:

i) a maximum operational passenger seating configuration (MOPSC) of 20 or more; or
ii) a maximum take-off mass of 45 360 kg or more,

the distance flown in 60 minutes at the one-engine-inoperative (OEI) cruising speed determined in accordance with (b);

2) for performance class A aeroplanes with:

i) an MOPSC of 19 or less; and
ii) a maximum take-off mass less than 45 360 kg,

the distance flown in 120 minutes or, subject to approval by the competent authority, up to 180 minutes for turbo-jet aeroplanes, at the OEI cruise speed determined in accordance with (b);

3) for performance class B or C aeroplanes:

i) the distance flown in 120 minutes at the OEI cruise speed determined in accordance with (b); or
ii) 300 NM, whichever is less.