Downloading Your Tachograph Is Required By Law

Under Regulation (EU) No 165/2014 and Commission Regulation (EU) No 581/2010, it is a legal requirement for transport operators to download data from both digital tachograph vehicle units (VUs) and driver cards. To comply, specialist equipment must be connected to the VU's download port to transfer the digitally signed .ddd files. As of 2026, this requirement now extends beyond heavy trucks to include light commercial vehicles (LCVs) between 2.5 and 3.5 tonnes engaged in international transport or cabotage.

The Move To Smart Tachograph Version 2 (Gen2v2)

The regulatory landscape has evolved significantly since the original 'Smart' units were introduced in June 2019:

• 21 August 2023: It became mandatory for all newly registered vehicles over 3.5 tonnes to be fitted with a Smart Tachograph Version 2 (Gen2v2).
• 31 December 2024: Existing vehicles in international transport with analogue or first-generation digital tachographs were required to upgrade to Gen2v2.
• 19 August 2025: Existing vehicles fitted with a Smart Tachograph Version 1 (Gen2v1) were required to upgrade to Gen2v2.
• 1 July 2026: All vans and LCVs with a Maximum Authorised Mass (MAM) between 2.5 and 3.5 tonnes used for international hire or reward must be equipped with a Gen2v2 unit.

Note that from 24 December 2025, all newly registered vehicles must be fitted with a 'full' Gen2v2 unit with OSNMA (Open Service Navigation Message Authentication) active. Earlier units produced during the transition period do not have this feature enabled.

Tachograph Downloading Systems

Download equipment must be capable of handling the advanced security certificates found in Gen2v2 units. Options include a laptop with dedicated analysis software and a compatible download cable or interface adapter connected to the VU's download port, or appropriate portable hardware such as the Lisle Design's Digidown Range, which is fully compatible with the latest generation of smart tachographs.

56-Day Driver Card Requirements

As of 31 December 2024, the legal 'look-back' period has doubled. Driver cards must now store records for the current day and the previous 56 days (up from 28 days). Despite the doubled storage capacity, the legal download frequency remains unchanged: driver cards must still be downloaded at least every 28 days. This can be achieved via a download tool connected to the tachograph, a fixed PC card reader, or a mobile solution like the Lisle Design's Digidown Plus or a remote downloading solution like the Lisle Design's Digidown RDL.

90-Day Vehicle Unit (VU) Requirements

In addition to driver card downloads, operators are legally required to download data directly from the vehicle unit itself at least every 90 days. The VU records data independently of the driver card, capturing activity across all drivers who have operated the vehicle. This download can be performed using the same equipment as driver card downloads, including portable solutions from the Lisle Design's Digidown Range.

Operators must retain all downloaded tachograph data for a minimum of 12 months, extended to 24 months where the data is also used for Working Time Directive compliance.

Remote Downloading & Working Hours Data

Modern Gen2v2 tachographs are designed for remote connectivity. Remote downloading allows companies to pull driver and vehicle data automatically without the vehicle returning to the depot, with the company card remaining securely at your headquarters or a data centre. Lisle Design's Digidown RDL facilitates this, ensuring you never miss a 28-day driver card or 90-day vehicle unit download deadline.

Advanced Company Card Hosting

With the inclusion of van fleets in 2026, many operators are now managing significantly more vehicles. Remote downloading requires the company card to be accessible over the internet via a hosting system to authenticate the data transfer. For larger fleets or service providers, Lisle Design's card hosting range allows for multiple card readers to be linked to a single server, centralising compliance for hundreds of vehicles simultaneously.

Other Fleet Operator Responsibilities

Downloading tachograph data is only one part of a fleet operator's legal obligations. The following responsibilities apply to all operators running vehicles in scope of tachograph legislation.

Infringement Analysis

Operators must actively analyse all downloaded data and identify any breaches of drivers' hours rules. Simply collecting the files does not satisfy the legal requirement. Where infringements are found, they must be documented, brought to the attention of the driver concerned, and retained on record. Operators are also required to offer drivers appropriate training on tachograph use and the relevant regulations.

Tachograph Calibration

All digital tachographs must be calibrated every two years, or sooner if certain changes occur, such as modifications to tyre size, changes to vehicle registration, or replacement of the tachograph head. Calibration must be carried out by a DVSA-approved tachograph centre. An installation plaque must be fixed to or near the tachograph showing calibration and inspection dates. This is one of the most commonly overlooked obligations, particularly when vehicles change ownership or undergo tyre changes.

Faulty Tachographs

Driving with a faulty tachograph is against the law. If a tachograph develops a fault, drivers must record their hours manually until it is repaired, and the defect must be rectified without delay. If data cannot be downloaded from a faulty unit, the repair centre should issue a certificate of undownloadability, which must be kept for at least 12 months. Operators should also be aware that many EU member states will not permit entry by a vehicle with a defective tachograph, even where manual records are being maintained.

Driver Card and Company Card Management

Operators must monitor expiry dates for both driver cards and company cards, as an expired card constitutes non-compliance. Operators are also responsible for ensuring the return of tachograph records from drivers, including those who have left employment, until all records have been handed back.

Driver Scheduling

Operators must schedule work in a way that allows drivers to comply with drivers' hours rules. Operators must not make payments linked to distances travelled or volumes of goods carried where such payments would incentivise breaches of the rules.

UK Operators Running International Routes

For UK-based operators, the applicable rules differ depending on whether journeys are domestic or international. Vehicles operating exclusively within the UK are not subject to the same Gen2v2 retrofit deadlines as EU-registered vehicles, though the standards apply to all newly registered vehicles regardless. For UK and EU international operations, requirements have been harmonised with EU obligations, including the 56-day historical record requirement, which applies even on the UK leg of international journeys.

EU Drivers' Hours Rules

Tachograph compliance does not exist in isolation. The data recorded is used by enforcement authorities to verify that drivers are operating within the legally permitted working limits under Regulation (EC) No 561/2006. The core rules for goods vehicles are:

• Daily driving limit: A driver may drive a maximum of 9 hours per day, extendable to 10 hours no more than twice per week.
• Weekly driving limit: No more than 56 hours of driving in any single week.
• Fortnightly driving limit: No more than 90 hours across any two consecutive weeks.
• Break requirements: After 4.5 hours of continuous driving, a driver must take a break of at least 45 minutes, which may be split into a 15-minute break followed by a 30-minute break.
• Daily rest: A minimum of 11 consecutive hours of rest per day, which may be reduced to 9 hours no more than three times between weekly rests.
• Weekly rest: A minimum of 45 consecutive hours, which may be reduced to 24 hours provided the reduction is compensated within the following three weeks.

These rules represent the EU-wide minimum standard. Some member states impose additional or stricter national restrictions, particularly around night driving, cabotage operations, and weekly rest taken in the vehicle cab. Operators running international routes should verify the specific requirements of each country their vehicles transit through, as penalties for non-compliance vary significantly across jurisdictions.

External Resources

• UK government advice on tachographs
• European Commission advice on tachographs