Tachographs: rules for drivers and operators
Tachographs in light vehicles
You need to use a tachograph if you are driving a smaller vehicle (such as a 4x4) for towing and both of the following apply:
- the maximum authorised mass (MAM) of the vehicle and trailer is more than 3,500kg
- the vehicle is used commercially
Fitting a tachograph
Read the Driver and Vehicle Standards Agency (DVSA) guidance on where you can fit a tachograph unit in a vehicle.
Buying or leasing a vehicle
If you buy or lease a vehicle and it comes under the assimilated (previously called EU rules) or AETR rules on drivers’ hours you’ll need to make sure it’s designed to have a tachograph fitted.
Phone DVSA if you’ve already bought a vehicle and are having problems fitting it with a tachograph. They can tell you where your nearest Approved Tachograph Centre is.
The Tachograph Centre can give you advice and help you get it fitted. It’s not always possible to fit a tachograph, however.
DVSA
0300 123 9000
Monday to Friday, 8am to 5pm
Find out about call charges
Further help
For further information about fitting tachographs in light vehicles email the DVSA tachograph section.
DVSA tachograph section
tachosection@dvsa.gov.uk