What it records
A digital tachograph records driving, other work, breaks and rest against the driver's card, along with vehicle speed and distance.
Downloads
- Driver cards: commonly downloaded at least every 28 days.
- Vehicle units: commonly downloaded at least every 90 days.
Storage
Keep downloaded data for at least a year, in a way that cannot be changed and that you can produce when asked.
Checking the data
Look for driving over the limits, missing rest, driving without a card and unexplained gaps. Talk to drivers about patterns, and keep a note of what you did.
Calibration
Tachographs must be calibrated at set intervals by an approved centre.
Relation to Kovi
Kovi does not analyse tachograph data. It keeps daily vehicle check records, which cover a different part of the compliance picture. Keep your tacho analysis tool and use Kovi for checks.
General information for Great Britain, not legal advice. Rules change, so check GOV.UK and DVSA for the latest. Northern Ireland has its own rules.