Tachograph Management: Common Infringements and How to Avoid Them

Tachograph infringements remain one of the most common reasons HGV operators face DVSA enforcement action. Many infringements are avoidable — they result from poor systems, inadequate driver briefing, or a failure to properly analyse downloaded data. This guide covers the most frequent violations and how to prevent them.

Why Tachograph Management Matters

Tachographs record driver activity, speed, and distance — and the data they capture is central to DVSA enforcement. At roadside checks, DVSA officers can download and analyse vehicle unit data on the spot. If infringements are found, the consequences can range from fixed penalty notices to prohibition of the vehicle and formal investigation of the operator.

For operators, the real danger isn't a single roadside stop — it's the pattern that emerges when the DVSA looks at your tachograph analysis records. If your records show repeated infringements, unanalysed data, or no evidence of driver debriefs, you are demonstrating that your compliance systems are inadequate. That's when licences come under threat.

The Most Common Tachograph Infringements

1. Exceeding Daily Driving Limits

Under EU and UK drivers' hours rules, most HGV drivers are limited to 9 hours of driving per day, extendable to 10 hours twice per week. Exceeding this limit — even by a small margin — is an infringement. The most common cause is poor route planning, unexpected delays, or drivers not understanding the rules fully.

2. Insufficient Rest Periods

Drivers must take a minimum of 11 hours of daily rest between shifts, reducible to 9 hours up to three times per week. A 45-minute break must be taken after 4.5 hours of driving. Insufficient rest is one of the most serious categories of infringement — it directly affects road safety and is treated seriously by enforcement officers.

3. Exceeding Weekly Driving Limits

The weekly driving limit is 56 hours, with a maximum of 90 hours over any two consecutive weeks. Operators with complex scheduling often struggle to keep track of weekly totals, particularly where drivers work variable patterns. This is where good tachograph analysis software becomes essential.

4. Failure to Download Vehicle Unit Data

Vehicle units must be downloaded at least every 90 days. Driver cards must be downloaded at least every 28 days. Missing download deadlines is a compliance failure in itself — and data that isn't downloaded can be overwritten, creating an evidence gap that regulators view very unfavourably.

5. No Tachograph Card (or Wrong Card)

Driving without a valid driver card, driving with another driver's card, or continuing to drive after a card fault without making the correct manual entries are all serious infringements. Drivers must have a valid, personal tachograph card and must use it correctly at all times.

6. Incorrect Mode Selection

Drivers must correctly select their activity mode — drive, work, rest, availability — on the tachograph. Driving without selecting the correct mode, or failing to record other work periods properly, creates inaccurate data and is treated as a deliberate attempt to falsify records in the worst cases.

7. No Evidence of Driver Debriefs

This is the operator-level failure that gets licences into trouble. Even if infringements occur — which they inevitably will from time to time — what matters to the Traffic Commissioner is whether you knew about them and what you did. Operators who cannot show documented driver debrief records are demonstrating they have no effective compliance system.

How to Prevent Tachograph Infringements

• Use approved analysis software: Manual analysis is unreliable for anything beyond a handful of drivers. Approved tachograph analysis software identifies infringements automatically and flags download deadlines.
• Download on schedule: Set calendar reminders or automated alerts for download deadlines. Vehicle units every 90 days, driver cards every 28 days — without exception.
• Train your drivers properly: Most infringements come from drivers who don't fully understand the rules. Regular briefings on hours limits, break requirements, and card use reduce the infringement rate significantly.
• Debrief every infringement: Every infringement identified in analysis should be debriefed with the driver, documented, and filed. This shows the regulator your system works.
• Monitor weekly totals: Weekly driving limits catch operators out, especially with variable schedules. Your analysis system should track cumulative weekly hours in real time.
• Review regularly: Don't wait for the DVSA to review your records. Regular internal compliance audits identify problems before they become enforcement issues.

What the DVSA Looks for at Inspection

When the DVSA inspects your transport operation — either at the roadside or at your premises — they are looking for evidence that your compliance system works. This means:

• Tachograph data downloaded on schedule with no gaps
• Analysis records showing infringements have been identified
• Driver debrief records for every infringement identified
• Evidence of corrective action where patterns emerged
• Driver cards and vehicle unit in good working order

An operator with a low infringement rate but no analysis records is in a worse position than one with some infringements but a robust system of identification, debrief, and correction. The DVSA understands that infringements happen — what they want to see is that you're managing them.