Complete guide

Digital tachograph: how to correctly download, evaluate and archive data

Truck Data TechnologyUpdated April 20268 min read

If you own a truck, a bus — or from July 2026 a van over 2.5 t in international transport — a digital tachograph is or will be an essential part of your working life. Whether you drive yourself or manage a fleet, there are several obligations you need to get right.

Downloading, correctly evaluating and archiving data gives you:

What you must do regularly

Legal deadlines you must meet

28
days — driver card
Driver card data must be downloaded at least every 28 days. TAGRA alerts you before deadlines expire.
90
days — vehicle unit
Vehicle unit data must be downloaded at least every 90 days. All data must then be archived for a minimum of 1 year.
TRUCKMALL tip

Even though the law requires only 1 year of archiving, we recommend keeping data for at least 3 years — to be on the safe side in case disputes arise later.

Why downloading alone is not enough

Many operators assume that simply downloading data is sufficient. It is not. The law requires you to also regularly evaluate the data — checking driving times, breaks and rest periods — and to archive it. Inspectors check for evaluation, not just the existence of downloaded files.

How to comply in practice

Step 1 — Download
Device for downloading data
Use the Download Box II S for manual downloading from the vehicle tachograph and driver cards.
Step 2 — Evaluate
Software for evaluation
TAGRA shows violations, driving times and rest periods in a few clicks. Reports accepted by inspectors.
Step 3 — Archive
Archiving
TAGRA archives everything automatically — secure and always accessible for any inspection.

Not sure which solution is right for you? Contact us — we'll be happy to advise.

Archiving: law and practice

G2V2 smart tachographs

Since 2023, all new vehicles must be fitted with second-generation smart tachographs (G2V2). All current Download Box devices and TAGRA software are fully compatible with G2V2 tachographs.

From July 2026: vans in international transport

An important legislative change will affect operators of smaller vehicles. From 1 July 2026, the obligation to use a tachograph extends to vans and combinations with a gross weight of 2.5–3.5 t when used in international transport for hire or reward or for cabotage. TAGRA is fully ready for this obligation. Read the full guide →

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Frequently asked questions

How often must tachograph and driver card data be downloaded?

Driver card data at least every 28 days, vehicle unit data at least every 90 days. We recommend downloading more frequently — for example every 10 and 30 days — to maintain a safety margin.

Is downloading the data enough, or must I also evaluate it?

Downloading alone is not enough. The law requires regular evaluation — checking driving times, breaks and rest periods. Without evaluation you have no visibility of violations and risk a fine. TAGRA handles this automatically.

What do I need to download data from the tachograph?

A download device (such as the Download Box II S), a company card inserted in the tachograph, and TAGRA software for evaluation and archiving.

How long must tachograph data be archived?

At least 1 year by law. We recommend 3–5 years. TAGRA archives data automatically.

Does the equipment support G2V2 smart tachographs?

Yes. All current Download Box devices and TAGRA are fully compatible with second-generation smart tachographs (G2V2).