EASA AIR OPS
AMC1 CAT.OP.MPA.181 Fuel/energy scheme — fuel/energy planning and in-flight replanning policy — aeroplanes
BASIC FUEL SCHEME — PRE-FLIGHT CALCULATION OF USABLE FUEL FOR PERFORMANCE CLASS A AEROPLANES

For the pre-flight calculation of the usable fuel in accordance with point CAT.OP.MPA.181, the operator should:
(a) for taxi fuel, take into account the local conditions at the departure aerodrome and the APU consumption;
(b) for trip fuel, include:

(1) fuel for take-off and climb from the aerodrome elevation to the initial cruising level/altitude, taking into account the expected departure routing;
(2) fuel from the top of climb to the top of descent, including any step climb/descent;
(3) fuel from the top of descent to the point where the approach procedure is initiated, taking into account the expected arrival routing; and
(4) fuel for making an approach and landing at the destination aerodrome.