Your customers are asking. Most fleets cannot answer.
The UK Sustainability Reporting Standards were published. Smaller businesses are not directly in scope — but every customer that is will need value-chain data from you. Source
of medium-sized UK businesses had been asked for carbon data by a customer in the previous 12 months, on British Business Bank research. Source
The UK electricity conversion factor fell about 26% in the 2026 DESNZ update — a grid and methodology change, not a fleet reduction. The Standard makes the difference visible. Source
Where the numbers can go wrong, we say so on the face of it.
Contracted, odometer, or a default
Every vehicle's distance is one of three things, and the certificate says which. Where nothing is known we use 8,000 miles — named, amber, and counted.
An EV is not zero
Battery-electric vehicles use the DESNZ per-km factor for grid electricity. We say zero tailpipe, and we count the charging.
Published, not proprietary
DESNZ conversion factors, stated by year. When a factor moves — the 2026 electricity factor fell about 26% — the change is shown separately from your operations.
No trend without a baseline
Year-on-year change is withheld until a snapshot around twelve months old exists. Until then the certificate reads: baseline is building.
Four tiers, each one labelled self-assessed.
Tiers are set by the battery-electric share of your fleet distance over the reporting period. The mark you display always carries the qualifier and the verify code — so anyone reading it knows exactly what it is worth.