PART
3A

CO2 offsetting requirements from international flights and emissions reductions from the use of CORSIA eligible fuels
CHAPTER 1

Offsetting

Emissions reductions from the use of CORSIA eligible fuels
41C
1
An aeroplane operator that intends to claim for emissions reductions from the use of CORSIA eligible fuels in a given year must compute those emissions reductions as follows—
ER_y = FCF × [∑_f MS_{f, y} × (1 - LS_f/LC)]
where—
- ER
y
= Emissions reductions from the use of CORSIA eligible fuels in the given year y, in tonnes,
- FCF = Fuel conversion factor,
- MS
f,y
= Total mass of a neat CORSIA eligible fuel claimed in the given year y, in tonnes, as described in and required by Field 12(b) in Table 1 of Schedule 5,
- LS
f
= Life cycle emissions value for a CORSIA eligible fuel, in gCO
2
e/MJ, and
- LC = Baseline life cycle emissions values for aviation fuel, equal to 89 gCO
2
e/MJ for jet fuel and equal to 95 gCO
2
e/MJ for AvGas.
2
The fuel conversion factor referred to in paragraph (1) is equal to—
a
3.16 (in kg CO
2
/kg fuel) for Jet-A fuel/Jet A1 fuel,
b
3.10 (in kg CO
2
/kg fuel) for AvGas, or
c
3.10 (in kg CO
2
/kg fuel) for Jet-B fuel.
3
If a default life cycle emissions value is used, the aeroplane operator must use the ICAO document entitled “CORSIA Default Life Cycle Emissions Values for CORSIA Eligible Fuels”
for the calculation in paragraph (1).
4
If an actual life cycle emissions value is used an approved Sustainability Certification Scheme must ensure that the methodology set out in the ICAO document entitled “CORSIA Methodology for Calculating Actual Life Cycle Emissions Values”
has been applied correctly.
Pt. 3A inserted (9.11.2022) by The Air Navigation (Carbon Offsetting and Reduction Scheme for International Aviation) (Amendment) Order 2022 (S.I. 2022/1050), arts. 1, 22