(b)  
The operator shall ensure that the planning of flights is based upon at least:

(1)  procedures contained in the operations manual and:
(i)  
data provided by the aircraft manufacturer; or

(ii)  
current aircraft-specific data derived from a fuel consumption monitoring system;

and
(2) the operating conditions under which the flight is to be conducted including:
(i)  
aircraft fuel consumption data;

(ii)  
anticipated masses;

(iii)  expected meteorological conditions; and
(iv)  air navigation services provider(s) procedures and restrictions.
(c)  
The operator shall ensure that the pre-flight calculation of usable fuel required for a flight includes:

(1)  
taxi fuel;

(2)  
trip fuel; 

(3)  
reserve fuel consisting of:

(i)  
contingency fuel;

(ii)  
alternate fuel, if a destination alternate aerodrome is required; 

(iii)  final reserve fuel; and
(iv) additional fuel, if required by the type of operation; 
and

(4)  
extra fuel if required by the commander.

(d)  
The operator shall ensure that in-flight replanning procedures for calculating usable fuel required when a flight has to proceed along a route or to a destination aerodrome other than originally planned includes:

(1)  
trip fuel for the remainder of the flight; and

(2)  
reserve fuel consisting of:

(i)  
contingency fuel;

(ii)  
alternate fuel, if a destination alternate aerodrome is required; 

(iii)  final reserve fuel; and
(iv) additional fuel, if required by the type of operation; 
and

(3)  
extra fuel if required by the commander.

CAT.OP.MPA.151 Fuel policy — alleviations
(a)  
Notwithstanding CAT.OP.MPA.150 (b) to (d), for operations of performance class B aeroplanes:

(1)  
for flights that depart from and arrive at the same aerodrome or operating site, the operator shall specify the minimum fuel contents at which a flight shall end. This minimum final reserve fuel shall not be less than the amount needed to fly for a period of 45 minutes.

(2)  
for other flights, the operator shall ensure that the pre-flight calculation of usable fuel required for a flight includes:

(i)  
taxi fuel, if significant;

(ii)  
trip fuel; 

(iii)  reserve fuel, consisting of:
(A)  
contingency fuel that is not less than 5 % of the planned trip fuel or, in the event of in-flight replanning, 5 % of the trip fuel for the remainder of the flight; and
　
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本文鏈接地址：Annexes to the draft Commission Regulation on ‘Air Operations - OPS’(81)