The Civil Aviation (Carbon Offsetting and Reduction Scheme for International Aviation) Regulations, 2025

15. Calculation of CO2 emissions from aeroplane fuel use

Edition: 2026-03-03 · In force

15. Calculation of CO₂ emissions from aeroplane fuel use

(1)The aeroplane operator shall apply a fuel density value to calculate fuel mass where the amount of fuel uplift is determined in units of volume.

(2)The aeroplane operator shall record the fuel density, which may be an actual or a standard value of 0.8 kilograms per litre, that is used for operational and safety reasons.

(3)The procedure for informing the use of actual or standard density shall be detailed in the Emissions Monitoring Plan along with a reference to the relevant aeroplane operator documentation.

(4)The aeroplane operator using a Fuel Use Monitoring Method, as specified in the Manual of CORSIA Implementation Standards shall determine the CO₂ emissions from international flights using the following equation:CO₂ =^∑_fM_f*FCF_fwhere:

CO₂	=	CO₂ emissions (in tonnes);
M_f	=	Mass of fuel f used (in tonnes); and
FCF_f	=	Fuel conversion factor of given
		fuel f, equal to 3.16 (in kg CO₂/kg fuel) for Jet-A fuel, Jet-A1 fuel TS-1 fuel, or No. 3 Jet fuel and 3.10 (in kg CO₂/kg fuel) for AvGas or Jet-B fuel.

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Source: Kenya Law