UK Driver Hours Rules 2025: What HGV Operators Must Do Now

If you run HGVs in the UK, April 2025 has brought a set of regulatory changes you need to know about — and act on. Whether you're a transport manager keeping tabs on compliance, a haulier running international routes, or a driver trying to stay on the right side of the DVSA, these updates affect your day-to-day operations. Some of the changes are straightforward terminology updates, but others — particularly around record keeping and tachograph retrofitting — have real operational consequences. Here's what's changed, what it means for you, and what you should do next.

---

What's Changed: The "Assimilated" Rules Explained

Since 21 April 2025, the UK's official drivers' hours framework has been updated to reflect post-Brexit legal reality. The most visible change is the language: you'll no longer see references to "EU law" in DVSA guidance. Instead, the term used is "assimilated drivers' hours rules".

Don't be put off by the terminology — the underlying rules around driving limits, rest periods, and break requirements haven't fundamentally changed overnight. What has changed is how they're framed and enforced in a UK legal context. The DVSA has also taken the opportunity to sharpen up some definitions. There's now a formal definition of "goods" as it relates to drivers' hours, updated lists of EU and non-EU countries for compliance purposes, and clarified national derogations for specific sectors like radio and television broadcasting.

For most domestic operators, day-to-day compliance looks much the same as before. But if you're running international routes — or if your fleet spans a mix of domestic and cross-border work — the updates matter more, and a couple of them have teeth.

---

The 56-Day Record Keeping Rule: Don't Get Caught Out

This is probably the most operationally significant change for international hauliers, and it's already in force.

For international journeys, operators are now required to produce 56 days of driver records when requested during a roadside check or DVSA inspection. That's digital tachograph data, analogue charts where applicable, and manual records — all of it. Previously, the requirement stood at 28 days. It's now doubled.

That might sound like a paperwork problem, but in practice it's a systems and process problem. If you're still managing driver records manually, or relying on spreadsheets and folders to store tachograph data, meeting a 56-day retrieval requirement at short notice becomes a genuine headache. During a DVSA roadside check, officers can and do request this documentation on the spot.

The DVSA's Earned Recognition audit standards for HGV operators already set a high bar for record keeping and monitoring — and this change only raises expectations further. Operators using digital compliance tools — Fleet77 included — can pull driver records quickly and accurately without scrambling through paperwork.

If your business does any international work, review your record keeping process now. Don't wait until you're standing at the side of an A-road trying to find 56 days of data on a tablet.

---

AETR Rules: International Routes Need Attention

For journeys travelling to and from the UK and non-EU countries, AETR rules apply — that's the European Agreement concerning the Work of Crews of Vehicles engaged in International Road Transport. This applies regardless of Brexit. AETR is a separate international treaty, and the UK is a signatory.

This means drivers on routes through countries like Turkey, Morocco, or other non-EU AETR member states must comply with AETR provisions for those legs of the journey, not just the assimilated UK rules. In practice, the rules are broadly similar, but the distinction matters legally and during enforcement checks.

Transport managers planning international routes should make sure drivers are briefed on which rules apply where — and that the paperwork reflects it correctly. Carrying the wrong records or misunderstanding which framework applies can result in penalties even when a driver has technically followed the right limits.

---

Tachograph Retrofit Deadlines: Get Ahead of the Queue

Tachograph upgrades are coming, and the timeline is tighter than it might look.

18 August 2025 — Smart Tachograph 1 to Smart Tachograph 2

If your vehicles are currently fitted with a Smart Tachograph 1 (sometimes called "Gen 1" smart tachographs), they need to be retrofitted with a Smart Tachograph 2 by 18 August 2025. That's less than four months away as of the time of writing.

Given workshop capacity across the industry, operators with larger fleets should already be booking retrofit appointments. Don't leave this until July — tachograph fitting centres are likely to get busy as the deadline approaches.

1 July 2026 — Lighter Vehicles (2.5–3.5 Tonnes GVW)

Vehicles with a gross vehicle weight between 2.5 and 3.5 tonnes will need to be fitted with a Smart Tachograph 2 by 1 July 2026. This brings a wider range of commercial vehicles into the tachograph regime and is worth planning for if you operate smaller goods vehicles alongside your main fleet.

---

What Operators Should Do Right Now

Here's a practical checklist to work through:

• Review your record keeping process — can you produce 56 days of international driver records at short notice? If not, fix that now.
• Audit your tachograph equipment — identify which vehicles have Smart Tachograph 1 fitted and start booking retrofit appointments before the August rush.
• Brief your drivers — make sure they understand AETR rules if they're running international routes, and that they're carrying the right documentation.
• Check the updated DVSA guidance — the full drivers' hours collection is available at GOV.UK and reflects the April 2025 changes.
• Check your compliance systems — tools like Fleet77 can help you stay on top of record keeping, tachograph data, and driver monitoring without the manual burden.

Penalties for non-compliance aren't trivial. Fixed penalty notices run up to £300, graduated deposits up to £1,500, and serious or repeated breaches can result in a court summons — and the reputational damage that comes with it.

Staying compliant in 2025 isn't about ticking boxes once a year. It's an ongoing process, and these changes are a good prompt to make sure your systems and processes are actually up to the job.

---

Want to make compliance less of a headache? Try Fleet77 free or get in touch to see how it works.