Drivers’ Hours and Tachograph Rules: The Limits Irish Operators Work To

Of all the compliance areas a commercial operator deals with, drivers' hours is the one most likely to produce a problem at the roadside. The vehicle can be immaculate and fully tested, and you can still be looking at a fixed charge or a prosecution because a driver ran fifteen minutes past a break or because nobody downloaded the tachograph data on time. Here is a practical summary for small Irish operators.

Which vehicles the rules apply to

The EU drivers' hours rules, set out in Regulation 561/2006, apply to the carriage of goods by road in vehicles with a maximum authorised mass over 3,500 kg, including any trailer, and to the carriage of passengers in vehicles built to carry more than nine people including the driver.

The scope has widened. Under the EU Mobility Package, light commercial vehicles with a maximum authorised mass over 2,500 kg used in the international carriage of goods came within the drivers' hours and tachograph regime from 1 July 2026. If your vans cross a border and sit above 2,500 kg, this is a change you need to check against your own fleet rather than assume does not apply.

There are also derogations, including one commonly relied on by tradespeople for vehicles not exceeding 7,500 kg carrying materials, equipment or machinery used by the driver in the course of their work within a limited radius of base. The conditions are specific and the exemption is narrower than most people think, so confirm it applies before you rely on it.

The driving limits

• Daily driving: 9 hours, which may be extended to 10 hours no more than twice in a week
• Weekly driving: 56 hours maximum
• Fortnightly driving: 90 hours across any two consecutive weeks
• Continuous driving: a break is required after 4.5 hours of driving

Note that the fortnightly limit means a 56 hour week has to be followed by a much lighter one. It is a common trap on busy fortnights.

Breaks

After 4.5 hours of driving, a driver needs a break of at least 45 minutes. That break can be split into a first period of at least 15 minutes followed by a second period of at least 30 minutes, taken in that order, distributed across the 4.5 hours. Anything shorter does not reset the driving period.

Daily and weekly rest

• Regular daily rest: 11 hours, which can be split into 3 hours followed by 9 hours
• Reduced daily rest: 9 hours, permitted no more than three times between weekly rest periods
• Regular weekly rest: 45 hours
• Reduced weekly rest: at least 24 hours, with the shortfall compensated by an equivalent block of rest attached to another rest period

What the tachograph work actually involves

The tachograph is not just a device in the cab, it is a record-keeping obligation with its own dates:

• Driver cards need to be downloaded regularly, commonly every 28 days, and vehicle unit data at least every 90 days
• Records must be retained and produced on request, so store downloads by vehicle and by driver rather than leaving them on a laptop
• Drivers must be able to produce records for the current day and the previous 28 days at the roadside
• The tachograph itself must be recalibrated at an approved centre every two years, and an out-of-calibration unit is an offence in its own right
• Drivers' hours infringements should be reviewed, not just archived. A stack of undownloaded data is not a defence, and an unactioned pattern of infringements is worse than none at all

The three dates that catch operators out

Most operators understand the driving limits. What tends to lapse is the paperwork around them:

1. Tachograph calibration expiry, which is easy to miss because nothing on the dashboard tells you it is due
2. Digital tachograph driver card expiry, valid five years, which stops a driver working the day it lapses
3. Driver CPC card expiry, also five years, needed alongside the licence for professional driving

Each of these is a date that arrives quietly and stops a vehicle or a driver from working when it passes.

Where small operators go wrong

The pattern is nearly always the same. A fleet with three or four trucks does not have a transport manager sitting over the tachograph analysis, so downloads slip, cards expire without warning, and the first sign of a problem is a roadside check. None of that is a knowledge gap. It is a diary problem, and diary problems are solvable.

Keeping the dates in one place

FleetMain tracks tachograph calibration expiry and Road Transport Operator licence expiry per vehicle, alongside CVRT, motor tax and insurance, and tracks driver-side dates including driving licence, Driver CPC card, tachograph driver card and ADR certificate on the Business and Fleet Pro plans. Everything is colour-coded green, amber or red, and email alerts go out at 30, 14 and 7 days before anything is due, so a card or a calibration cannot quietly expire on you.

FleetMain does not analyse tachograph data or calculate drivers' hours infringements. What it does is make sure the dates that surround the tachograph regime are never the reason a vehicle comes off the road.

This article is a general summary of the drivers' hours and tachograph regime, not legal advice. Limits, derogations, download intervals, retention periods and the scope of the rules for light commercial vehicles should be confirmed with the Road Safety Authority and the Department of Transport for your specific operation.