Factor record · large-car-cng-km-scope-3-defra-2026last verified 2026-07-31 · DESNZ
0.23463
kgCO2e / km
Travel by car — Large car (CNG)
Business travel · Road transport · Passenger car
Vintage
Select unit
1.09% lower than 2025
0.23722 kgCO2e/km in 2025
GHG Breakdown
CO₂
0.2325
kgCO2e/km
CH₄
0.0018
kgCO2e/km
N₂O
0.0004
kgCO2e/km
Record
- Identifier
- df280b4180b2
- Activity
- Travel by car — Large car (CNG)
- Activity class
- Business travel · Road transport · Passenger car
- Category
- transport
- Sub-category
- Cars (by size)
- Vehicle size
- Large car
- Fuel / powertrain
- CNG
- Region
- GBR · United Kingdom
- Value
- 0.23463 kgCO2e/km
- Scope
- Scope 3*
- Scope 3 category
- Category 6
- Methodology
- activity based
- GWP
- AR5 / GWP100
- Vintage year
- 2026
- Published
- 2026
- Source reference
- Factors by Category sheet, ID 25_301_3064_4_1
- License
- Open Government Licence v3.0
- Verified
- 2026-07-31 · DESNZ
Citation
DEFRA 2026, Travel by car — Large car (CNG), Factors by Category sheet, ID 25_301_3064_4_1
Methodology
Derived from direct physical activity measurements (litres, kilometres, kilograms). The most accurate approach where activity data exists.
Notes
* Scope 3 boundary · Use this factor for Scope 3 Category 6 passenger road journeys undertaken for business in vehicles outside the reporting organisation’s ownership or control. Choose the car, motorbike, bus, coach, or taxi record and unit that match the travel data available. Separate factors apply to employee commuting, owned or controlled vehicles, freight transport, rail travel, and upstream well-to-tank emissions.
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