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

If you run lorries on UK roads in 2025, driver hours compliance isn't something you can afford to wing. The rules have changed, enforcement is getting sharper, and the paperwork burden has grown. Whether you're a transport manager juggling a fleet of 30 trucks or an owner-driver running a couple of artics, this guide breaks down everything you need to know about the current legal framework — what's changed, what's stayed the same, and where operators are most likely to trip up.

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What Changed on 21 April 2025

The biggest shake-up to UK driver hours rules in years came into force on 21 April 2025, with the Drivers' Hours and Tachographs (Amendment and Modification) Regulations 2025. Here's what that actually means in practice.

AETR Rules Now Apply to International Routes

If your drivers are running international journeys between the UK and non-EU countries, the rules they operate under have officially changed. The UK has adopted the AETR (European Agreement Concerning the Work of Crews of Vehicles Engaged in International Road Transport) framework for these routes, replacing the old retained EU regulations that were carried over after Brexit.

For most operators, the day-to-day driving limits under AETR are broadly familiar — but the legal basis has shifted, and that matters if you're ever in front of an enforcement officer or auditor. Make sure your drivers know which ruleset applies to which journey.

"Assimilated Rules" — What the New Name Means

For domestic-only operations, the term "EU rules" has been officially dropped and replaced with "assimilated drivers' hours rules." This isn't just rebranding — it reflects the UK's post-Brexit legal status. The core driving limits haven't changed, but your policies, driver briefings, and any internal documentation should use the correct terminology. It's a small thing that can look sloppy if you're audited.

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The 56-Day Record Requirement — Don't Get Caught Out

This is arguably the most operationally significant change for international operators, and it's one that's already catching people off guard.

Since April 2025, drivers on international journeys must be able to produce 56 days of tachograph records — that's the current day plus the previous 55. This doubles the previous 28-day requirement.

That covers digital tachograph data, analogue charts, and any manual entries. If a driver gets pulled at a roadside check or border crossing and can't produce the full 56 days, that's an immediate compliance failure. It falls on both the driver and the operator to ensure records are available and properly stored.

What This Means for Your Back Office

If you're still managing tachograph downloads manually or relying on drivers to carry physical charts, this change significantly increases your admin burden. DVSA's Earned Recognition audit standards for HGV operators set clear expectations around tachograph analysis and record retention — and meeting those standards means having a reliable, consistent process in place. Tools like TruckCheck are built to handle exactly this kind of record-keeping, automatically pulling and storing driver data so you're never scrambling to find a chart from seven weeks ago.

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Smart Tachograph Version 2 — The Hardware Deadline You Can't Miss

2025 also brought a critical hardware milestone that affects international operators directly.

SMT2 Retrofitting Was Required by August 2025

From 18 August 2025, any vehicle over 3.5 tonnes used for international transport that was previously fitted with a first-generation Smart Tachograph (SMT1) must have been retrofitted with a Smart Tachograph Version 2 (SMT2). These newer units include mandatory GPS border-crossing recording and improved fraud detection capabilities.

If you haven't already done this and your vehicles are running internationally, you're operating outside the law. Get this sorted immediately — the DVSA has increased its use of remote tachograph sensing, meaning they can detect violations without even stopping a vehicle.

The Next Deadline: July 2026 for Lighter Vehicles

Operators running smaller vehicles — specifically those in the 2.5 to 3.5 tonne range on international routes — have until 1 July 2026 to fit SMT2 devices. That's not far away. If this applies to your fleet, now is the time to start planning, not in six months.

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The Core Hours Rules — Still the Foundation

Despite all the changes above, the fundamental driving limits that underpin everything else haven't moved. These are the numbers every driver and transport manager should know cold.

• Daily driving limit: 9 hours, extendable to 10 hours a maximum of twice per week
• Weekly limit: 56 hours
• Fortnightly limit: 90 hours across any two consecutive weeks
• Breaks: 45 minutes after no more than 4.5 hours of driving (can be split into a 15-minute break followed by a 30-minute break)
• Daily rest: 11 hours, which can be reduced to 9 hours up to three times between weekly rests

These limits apply under both the assimilated rules (domestic) and AETR (international). Fatigue is still the primary concern behind all of this — and it's worth remembering that the DVSA's increased use of remote sensing technology means hours violations are being detected more frequently than ever, even on routes that would previously have flown under the radar.

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The Bigger Picture: Enforcement and Industry Pressures

The Logistics UK Compliance Report 2025 painted a picture of an industry that's doing better on safety — HGV MOT failure rates hit a record low of 6.9% in 2024/25, down from over 17% a decade ago — but is operating under real workforce pressure. The UK had approximately 293,714 active HGV drivers at the start of 2025, a 1.9% decline from 2024.

Fewer drivers means more pressure on the ones you have, which makes hours compliance even more critical. An infringement that pushes a tired driver over the limit isn't just a legal risk — it's a safety risk.

Keeping on top of all this manually is genuinely hard. Operators using TruckCheck find it easier to stay ahead of tachograph downloads, flag potential infringements before they become serious, and keep records in order for any DVSA interaction.

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If you want to see how fleet compliance software can take some of the weight off your transport office, try TruckCheck free or get in touch to see how it works.