Remote tachograph data download: how it works and how often it should be done
Twenty-eight days for the driver card, three months for the vehicle memory, at least one year of storage. This guide lists the legal terms, explains how remote withdrawal works and explains the trap that empties the downloads without giving any errors.
What does "download data" mean and why is it a company obligation
The digital tachograph records two separate flows living in two different places. Confusing them is the most common reason a company thinks it's in compliance and isn't.
Two memories, two obligations
The driver card records the person's activity and carries it with them from one vehicle to another. The mass memory of the device records the activity of the vehicle, whoever is driving it. They are two distinct archives, with two different download deadlines, and downloading one does not cover the other.
Whose obligation is it
Of the transport company. Article 10 paragraph 2 of Regulation (EC) 561/2006 requires companies to organise the activities of drivers so that they can respect the rules, to provide instructions and to carry out regular checks — at least when downloading data from the card. Article 33 of Regulation (EU) 165/2014 adds training, periodic checks and conservation.
The format
The files produced by the download have a .DDD extension and are digitally signed. The signature is the reason why they cannot be "fixed": any modification makes them invalid during inspection.
How often: 28 days for the card, 3 months for the vehicle
The terms are set by the ministerial decree of 31 March 2006. They are maximum terms. There is no minimum limit: downloading every week is legitimate, downloading on the twenty-ninth day is not.
The two ordinary terms
- Driver card — maximum 28 days
- Memory of owned or leased vehicles — maximum 3 months
The four cases that the calendar does not protect
The decree requires immediate downloading even outside the ordinary deadline, in four situations in which the data is about to become irrecoverable.
- Immediately before handing over the vehicle to another company
- In case of replacement of the appliance
- Before the driver leaves the company
- Before the tachograph card expires
Because the four cases pop up more often than the others
Because they are not deadlines: they are events. A deadline is put on the calendar, an event arrives when it arrives — and when it arrives, in the company, the priority of those who manage it is not the tachograph. It is the resignation of a driver, the delivery of a sold vehicle, the replacement of a faulty appliance.
From the vehicle to the archive, without getting on board
Remote unloading replaces the manual operation - person, key, company card, stationary vehicle - with a transfer over a mobile network that takes place while the vehicle is working.
What is needed on board
A telematics device connected to the tachograph, directly or via an interface dedicated to remote download. The connection is what allows the device to release files on request without anyone physically inserting a flash drive.
What happens in practice
The system requests the files according to a set schedule, the device releases them signed, the transfer takes place over the mobile network and the files arrive in an archive. The vehicle does not stop and the driver does nothing.
The company card remains necessary
It does not disappear: it is used by the system to authenticate itself towards the tachograph. It changes where it is — in the system instead of in the pocket of those who go to the yard — not if needed.
The company block: why a download can return empty without giving an error
It is the operational flaw that no commercial page tells about, and which produces the worst possible case: an archive that seems full but isn't.
What should happen upon purchase
When a vehicle is purchased or leased, the company must immediately insert its company card and execute the "block company" function. It is the operation that matches that tachograph to that company and reserves access to its data.
What happens if you don't
The first flush returns empty data. Without any error messages. To recover them you need to contact a technical centre, which intervenes with the workshop card.
And on the way out
The last user, after having downloaded the data on the last day of possession, must carry out the reverse operation and "unlock the company". It is used to prevent others from accessing your data.
Because it matters more than it seems
A company that does not know this step discovers the hole at the first check, that is, when it can no longer remedy the situation. An incomplete archive and an absent archive, in front of those who verify, are worth the same.
Retention: at least one year, in order, in readable form and with a backup
Downloading is not enough. The part of compliance that is demonstrated in an audit is what comes next, and it is also the easiest to do badly without realizing it.
How much and how
Article 33 of Regulation (EU) No 165/2014 requires records to be stored for at least one year, in chronological order and in readable form. The 2006 Italian decree specifies that data must be transferred to an external medium that preserves its integrity and long-term readability, with at least one backup copy.
To whom should they be made available
To the authorities responsible for controls. And to drivers who request it: it is an explicit obligation of Article 33 itself, and concerns the data of the person requesting it.
The practical criterion
“In readable form” doesn't mean having the files: it means being able to open them and display them. An archive saved with a tool that no longer exists, or on a medium that can no longer be read, formally exists and essentially does not.
The sanctions fall on the company, not just the driver
The sanctions are established by the Highway Code - articles 174, 178 and 179 - and provide for the co-responsibility of the transport company.
The two cases that concern unloading
- Article 178 paragraph 13 - failure to comply with driving times, rest periods and breaks, or failure, incomplete or altered data storage: financial penalty for each employee
- Article 179 paragraph 3 - circulation with a missing, tampered with or non-functioning tachograph or limiter: administrative sanction to be paid by the company
On the amounts
They are subject to periodic re-evaluation and must be verified at the date of the inspection, not copied from an old item. This is why this page indicates the cases and not the figures: a wrong figure on this matter is worse than no figure.
The exemption, and why it only exists if you are prepared
The company may not be sanctioned if it demonstrates that it has respected all its obligations: transport planning compatible with the rules, precise instructions, training, regular checks with any complaints. It is a documentary defense. Anyone who has never done those checks has nothing to show for it - and good faith, here, is not evidence.
Remotely or by hand: what really changes
Remote downloading is not required by any law. The law sets the terms and retention, not the method. The choice is organizational and must be made with organizational criteria.
What eliminates the remote
The stopping of the vehicle, the movement of a person, the physical availability of the company card and - above all - the dependence on someone's memory. The four off-calendar cases remain events to be monitored, but the two recurring deadlines stop being reminders and become planning.
When the manual still holds
With a few vehicles returning to the same yard every evening and a person who has that task written in their role, the manual works. It holds up poorly when the vehicles are out for several days, when there is more than one yard, or when that person is on holiday in the week of the deadline.
The honest criterion
It's not "how much the system costs" but "how many times a year, realistically, does my organisation miss a deadline." If the answer is zero, remote brings convenience. If it's more than zero, bring coverage.
Sources and limits of this guide
This page describes obligations and practices. It is not legal advice and does not replace checking your case with a consultant or the competent authority.
Normative references cited
- Regulation (EC) 561/2006, article 10 paragraph 2 — organizational and control obligations of the company
- Regulation (EU) 165/2014, Article 33 — training, periodic checks, retention for at least one year, delivery of data to the driver
- Ministerial Decree 31 March 2006 - unloading terms, conservation and transfer methods, backup copy
- Highway Code, articles 174, 178 and 179 - sanctions and co-responsibility of the company
Secondary source consulted
Men and Transport, «Downloading tachograph data: regulations and good practices», Safe and certified column, 1 April 2023.
Last content check
18 August 2026. The amounts of sanctions are subject to periodic reassessment and are not reported on this page for this reason.
Frequently asked questions about tachograph data download.
How many discharge deadlines have you missed in the last year?
If the answer is "none, and I can prove it", it is worth seeing how remote unloading is organised on your fleet.