UK Driver Hours Rules 2025: What Every HGV Operator Must Know

If you run HGVs in the UK, 2025 is shaping up to be one of the busiest years for regulatory change in recent memory. Between new international rules, tachograph upgrade deadlines, and updated safety requirements, there's a lot to keep on top of — and the consequences of getting it wrong range from fixed penalty notices to operator licence reviews. Here's a clear breakdown of what's changed, what's coming, and what you need to do about it.

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The Big Shift: AETR Rules Now Apply to International Journeys

One of the most significant changes that came into force on 21 April 2025 is the move from retained EU regulations to the AETR framework (European Agreement concerning the Work of Crews of Vehicles Engaged in International Road Transport) for international journeys.

In practical terms, this means that if your drivers are crossing into Europe, the legal rulebook has changed. This shift was driven by the UK/EU Trade and Cooperation Agreement, and the DVSA has updated all official guidance accordingly — including replacing references to "EU Law" with the term "Assimilated drivers' hours rules".

For most operators running international routes, the day-to-day driving limits haven't changed dramatically, but the administrative and compliance obligations have. The biggest immediate impact? Drivers on international journeys must now carry 56 days of records at the roadside, up from the previous 28-day requirement. That's a doubling of the record-keeping burden, and it's something drivers and transport managers need to be fully prepared for — especially at border crossings where DVSA and foreign enforcement agencies will be checking.

Make sure your drivers know exactly what they need to have accessible, whether that's tachograph printouts, digital records, or both. If you're using fleet compliance software like Fleet77, this is the kind of thing you can monitor and generate reports for well in advance of any roadside check.

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Smart Tachograph 2: Don't Miss the August Deadline

This one has a firm date attached to it, so mark your calendar now: 18 August 2025 is the final deadline for HGV operators to retrofit a Smart Tachograph 2 (Gen 2) unit if their vehicle is currently fitted with a Smart Tachograph 1, or an older analogue or digital unit.

Smart Tachograph 2 units offer improved border-crossing tracking and stronger anti-tampering measures, which is partly why this upgrade is being pushed through. The DVSA isn't being subtle about enforcement priorities here — tachograph compliance has always been a key focus, and running a vehicle without the correct unit after the deadline will leave you exposed.

If you've got a mixed fleet, now is the time to audit exactly which vehicles need upgrading and get those workshop appointments booked. Tachograph fitters are already getting busy, and leaving this until July is a risk you don't want to take.

Looking further ahead, there's also a 1 July 2026 deadline for vehicles with a gross vehicle weight between 2.5 and 3.5 tonnes to be fitted with Smart Tachograph 2 units — so if you run lighter commercial vehicles alongside your HGVs, start planning for that too.

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Core Driving Limits: What Hasn't Changed

Amid all the updates, it's worth being clear that the fundamental driving hour limits remain the same. These are the rules your drivers need to know inside out:

• Daily driving limit: 9 hours, extendable to 10 hours a maximum of twice per week
• Weekly limit: No more than 56 hours in a single week
• Fortnightly limit: No more than 90 hours across any two consecutive weeks
• Break requirement: A 45-minute break after every 4.5 hours of driving (can be split into a 15-minute break followed by a 30-minute break)

These limits apply under both the assimilated rules and the AETR framework, so consistency here helps. That said, the DVSA's Earned Recognition audit standards for HGV operators make clear that operators are expected to demonstrate active monitoring of driver hours — not just assume drivers are complying. Regular analysis of tachograph data, prompt investigation of infringements, and documented follow-up are all part of what an auditor will want to see.

A Note on Zero-Emission Vans

There's one change that's good news for operators running zero-emission vans. Vehicles in the 3.5 to 4.25 tonne range are now moved from assimilated rules to GB domestic drivers' hours rules, meaning they are no longer required to be fitted with a tachograph. This is a deliberate incentive to encourage cleaner transport adoption, and if you're considering transitioning part of your fleet to electric, it's worth factoring into your planning.

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Safety and Maintenance: New Obligations from April 2025

The regulatory updates don't stop at driver hours. From 1 April 2025, there are two additional compliance requirements that operators need to be aware of:

Brake Testing

HGV operators are now required to conduct a minimum of four laden brake tests per year. This isn't just best practice — it's a formal requirement, and it feeds directly into the kind of documented safety evidence the DVSA expects to see if you're subject to an audit or investigation. Keep records of every test, including dates, results, and the vehicle involved.

Digital PG10 Notices

The DVSA has moved away from paper-based PG10 prohibition notices and now issues them by email. If your contact details in the Vehicle Operator Licensing (VOL) system are out of date, you could miss a prohibition notice entirely — which compounds the problem significantly. Log in to the VOL system now and check that your email address is current. It takes five minutes and could save you a serious headache.

Fleet77 users can link their compliance records to flag upcoming inspection dates and ensure nothing slips through the gaps — but regardless of what system you use, this is a basic housekeeping task every operator should complete today.

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Stay Ahead, Not Behind

2025 has brought a meaningful set of changes for UK HGV operators — from how international journeys are governed, to what's in your cab, to how you're maintaining your vehicles. None of these changes are optional, and the DVSA has made its enforcement intentions clear.

The operators who stay on the right side of compliance are the ones who treat it as an ongoing process, not a once-a-year review. Keep your drivers informed, get your tachograph upgrades booked, check your VOL contact details, and make sure your record-keeping is solid before any roadside check or audit.

Try Fleet77 free or get in touch to see how it works — and take the stress out of staying compliant.