The HGV fortnight rule requires every driver to take at least one regular weekly rest (45 hours or more) and one reduced weekly rest (24–44 hours) across any two consecutive fixed weeks. Get it wrong — specifically, taking two reduced rests as your only weekly rests in a fortnight — and you're looking at a serious infringement under EU Regulation 561/2006. Here's exactly how the rule works, what combinations are allowed, and the mistakes that catch drivers out most often.
What Is the Fortnight Rule?
The fortnight rule is one of the core rest requirements in EU 561/2006 (which still applies in Great Britain post-Brexit through retained law). It governs the minimum weekly rest a driver must take over any two consecutive fixed weeks.
Put simply: you can't keep taking short weekly rests back to back. The regulation insists that across every rolling pair of fixed weeks, at least one of your weekly rests must be a full 45-hour regular rest.
This is separate from the 144-hour rule, which limits how long you can go between weekly rests. The fortnight rule doesn't care about gaps between rests — it cares about the type of rests you're taking.
Fixed Weeks vs Working Weeks — Why It Matters
This is where most drivers get caught out. The fortnight rule uses fixed weeks, not working weeks. There's a big difference.
| Term | Definition | Used For |
|---|---|---|
| Fixed week | Monday 00:00 UTC to Sunday 24:00 UTC | Fortnight rule calculations |
| Working week | Period between one weekly rest ending and the next beginning (variable) | 144-hour rule calculations |
A fixed week always starts on Monday at midnight UTC and ends on Sunday at midnight UTC. It doesn't move based on when you start or finish work. During British Summer Time, that boundary falls at 01:00 BST — something worth keeping in mind if you're cutting it close on a Sunday night.
Your working week, on the other hand, starts whenever your last weekly rest ended. It's personal to you and shifts around depending on your rest pattern. The 144-hour rule uses working weeks. The fortnight rule doesn't.
So when someone says "you need proper rest every two weeks," they mean every two calendar weeks — Monday to Sunday, Monday to Sunday. Not "14 days from your last rest."
What Rest Combinations Are Allowed?
In any two consecutive fixed weeks, you need at least two weekly rests. Here are the three valid combinations:
| Option | Rest 1 | Rest 2 | Compensation Needed? |
|---|---|---|---|
| A | Regular (45h+) | Regular (45h+) | No |
| B | Regular (45h+) | Reduced (24–44h) | Yes, for the reduced rest |
| C | Reduced (24–44h) | Regular (45h+) | Yes, for the reduced rest |
The order doesn't matter for options B and C. You can take the reduced rest first or second. What matters is that at least one of your weekly rests is a full 45 hours.
The infringement: two reduced rests (both under 45 hours) as the only weekly rests in a fortnight. That's a serious offence. Penalties for driving hours violations can include fixed penalties, court prosecution, and impact on your operator's compliance record.
What About Compensation?
When you take a reduced weekly rest, you owe yourself the difference. The formula is straightforward:
Compensation = 45 hours − actual rest hours taken
So if you took a 24-hour reduced rest, you've got 21 hours of compensation to make up. If it was 38 hours, you owe yourself 7 hours.
The rules for taking that compensation are strict:
- It must be taken as one continuous block — you can't split it across multiple breaks
- It must be attached to the front of a rest period of at least 9 hours (daily or weekly rest)
- Deadline: by the end of the third week after the week you took the reduced rest
Miss the deadline or try to split it up, and you're picking up another infringement. Transport managers at fleet operators and haulage companies are responsible for planning schedules that give drivers enough time to take compensation rest. If you're working through a driver staffing agency, make sure your agency and the operator you're sent to both understand your compensation obligations — it's easy for these to fall through the cracks between organisations.
What Happens with Extra Reduced Rests?
Here's the thing — you might end up taking more than two weekly rests in a fortnight. That's perfectly fine. But it raises a question: do all reduced rests need compensation?
No. Only the reduced rest that meets the minimum fortnight requirement needs compensation. Extra reduced rests — ones you take voluntarily, perhaps to avoid hitting the 144-hour limit — don't need compensation.
Example: In one fortnight you take a 45-hour rest, a 27-hour rest, and a 24-hour rest. You've got one regular and two reduced. Only one of those reduced rests counts towards the fortnight minimum — the other is "extra." You only need to compensate for one.
This trips up even experienced transport managers. The instinct is to think every reduced rest needs compensating, but the regulation only requires it for the one reduced rest that pairs with your regular rest to satisfy the fortnight rule.
The 69-Hour Rest Loophole
Now for a provision that doesn't get talked about enough. A single rest period of 69 hours or more that spans two fixed weeks can count as two weekly rests: one regular (45h) and one reduced (24h).
How does this work? The rest must cross the fixed week boundary — Sunday midnight UTC. If you start a long rest on Saturday and don't return to work until Tuesday, and the total is 69+ hours, it satisfies the fortnight requirement in one go.
| Scenario | Hours | Counts As | Fortnight Satisfied? |
|---|---|---|---|
| Rest from Sat 12:00 to Tue 09:00, spanning week boundary | 69h | 45h regular + 24h reduced | Yes |
| Rest from Sat 18:00 to Tue 06:00, spanning week boundary | 60h | One weekly rest only | No (need another rest in the fortnight) |
| Rest from Fri 00:00 to Sun 21:00, NOT crossing midnight UTC | 69h | One weekly rest (didn't span boundary properly) | No |
This is particularly useful for drivers who take a long weekend at home. One extended rest can tick both boxes. But the rest must span across the Sunday/Monday UTC boundary to qualify.
One more important detail about rests that cross a week boundary: a normal weekly rest (under 69 hours) that spans two fixed weeks can be counted in either week — but not both. Only the 69+ hour rest gets the special treatment of counting in both weeks simultaneously.
Common Fortnight Rule Mistakes
After years of working with HGV drivers and transport operators, these are the mistakes we see again and again:
- Confusing fixed weeks with working weeks. The fortnight rule doesn't care when your shift pattern started. It's Monday to Sunday, every time.
- Taking two reduced rests back to back. If week 1 has only a 30-hour rest and week 2 has only a 28-hour rest, that's an infringement — even if you took a 45-hour rest in the week before or after.
- Forgetting compensation deadlines. You've got until the end of the third week following the reduction. After that, the compensation becomes an infringement in its own right.
- Splitting compensation rest. Taking 10 hours here and 11 hours there doesn't count. It must be one continuous block attached to the front of a 9-hour-plus rest.
- Ignoring UTC timing. During BST, the fixed week boundary is at 01:00 local time on Monday morning, not midnight. A rest that ends at 00:30 BST on Monday is still in the previous fixed week.
- Agencies not checking rest history. If you're a staffing agency sending a driver out, you need to verify they've had adequate rest. Sending a driver who's already on a reduced rest this week to an operator who'll only give them another reduced rest creates a shared liability.
Keeping track of all this manually — especially across multiple operators or agency bookings — is where mistakes creep in. Tools like ShiftOwt help drivers track their rest patterns and flag potential fortnight rule issues before they become infringements. Knowing your tachograph obligations and daily and weekly driving limits is just as important for staying on the right side of enforcement.
Frequently Asked Questions
Can I take two reduced weekly rests in a row?
Only if there's also a regular weekly rest (45h+) somewhere in that same two-week fixed period. The rule looks at every pair of consecutive fixed weeks. If the only weekly rests in any given fortnight are both reduced (under 45 hours), that's a serious infringement. You can have extra reduced rests on top of the minimum requirement, but at least one rest per fortnight must be a full 45 hours.
Does a rest that falls on a Sunday/Monday boundary count for both weeks?
It depends on the length. A normal weekly rest spanning the boundary can be counted in either the first week or the second — but not both. The exception is a rest of 69 hours or more that crosses the boundary, which can count as two separate weekly rests (one regular, one reduced) covering both weeks at once.
Who is responsible for ensuring the fortnight rule is followed — the driver or the operator?
Both. Drivers are responsible for their own compliance and can be fined personally for infringements. But operators (the fleet or haulage company holding the O-licence) and their transport managers have a legal duty to plan schedules that make compliance possible. If you're working through a staffing agency, the agency should verify your recent rest history before assigning you, and the operator you're sent to should factor your rest needs into their planning. In practice, enforcement can hold all parties accountable.
This post is part of our complete guide to EU driving hours rules. For more on specific requirements, see our articles on the 144-hour weekly rest rule, tachograph rules in the UK, daily and weekly driving limits, and penalties for driving hours violations.
Related Guides
This article is part of our complete guide to EU driving hours regulations. For more on specific topics: