CAT.POL.A.305 Take-off
(a) The take-off mass shall not exceed the maximum take-off mass specified in the AFM for the pressure altitude and the ambient temperature at the aerodrome of departure.
(b) The unfactored take-off distance, specified in the AFM, shall not exceed:
(1) when multiplied by a factor of 1,25, the take-off run available (TORA); or
(2) when stop way and/or clearway is available, the following:
(i) the TORA;
(ii) when multiplied by a factor of 1,15, the take-off distance available (TODA); or
(iii) when multiplied by a factor of 1,3, the ASDA.
(c) When showing compliance with (b), the following shall be taken into account:
(1) the mass of the aeroplane at the commencement of the take-off run;
(2) the pressure altitude at the aerodrome;
(3) the ambient temperature at the aerodrome;
(4) the runway surface condition and the type of runway surface;
(5) the runway slope in the direction of take-off; and
(6) not more than 50 % of the reported headwind component or not less than 150 % of the reported tailwind component.