A shrinking corner of the fleet still runs on wax and styluses: the analogue tachograph, recording by cutting traces into a paper chart. Mostly found now in older vehicles and certain exempt operations, analogue remains fully legal where it applies - and fully enforceable, with its own record-keeping duties that examiners know line by line. Fleets with any analogue vehicles need people who can read a chart.
GOV.UK’s tachograph guidance describes the mechanism precisely: analogue tachograph recordings are made by a stylus cutting traces into a wax-coated chart, with three separate styluses marking recordings - including speed. The chart is therefore a physical, tamper-evident document: the traces are cut, not written, and alterations show. Time, speed, distance and the driver’s selected activity mode all appear as the instrument’s styli track the rotating chart across its 24-hour face.
Around the traces sits the driver’s own entry: the guidance’s coverage of analogue tachographs includes proper record keeping and filling in centrefield entries - the handwritten block where the driver records the details the styli cannot: name, dates, places, the vehicle, the odometer figures, and the manual activity notes for time the chart could not capture. The centrefield is where analogue compliance is won or lost: a chart with perfect traces and an empty or sloppy centrefield is an incomplete legal record, and examiners read the omission as readily as the traces.
The chart’s legal life is prescribed: a fresh chart each day, carried in the vehicle, with the driver able to produce at the roadside the charts and any legally required manual records for the current day and the previous 28 calendar days - or 56 days for international journeys to and from the EU. Used charts then flow back to the operator for retention and analysis: the same duties that govern digital data - kept, reviewed, produced on demand - attach to the paper record.
The multi-driver rules adapt to paper too: the guidance’s common rules cover multi-manning and keeping second driver records, plus recording other work, rest-days and days off - all of which on analogue means disciplined chart management when two drivers share a vehicle, and manual records for the days no chart exists.
Chart analysis is a craft worth keeping alive in the office. The speed trace against the speed limiter tells the speeding story; the distance trace against the times tells the journey; the mode selections against the traces tell whether the driver was honest about driving and other work; and the gaps - the vehicle moving with no driving recorded, the chart changed mid-journey - tell the stories drivers hope nobody reads. The cross-checks make it evidence: chart kilometres against fuel purchases and job records, centrefield declarations against the depot diary, the driver’s signature against everything.
For the shrinking analogue fleet, the office discipline is the same as digital, just physical: charts collected, filed by driver and date, analysed for the same infringements, and stored for the retention period - a paper archive that has to survive until its digital cousins take over completely.
Analogue tachographs cut speed, distance and mode traces into wax charts - tamper-evident paper the driver completes with accurate centrefield entries, carries for 28 days (56 international), and returns for analysis and retention. Read the traces, cross-check the centrefield, keep the archive: the oldest tachograph is still a legal witness.
Analogue fleets face a slow-motion decision: the vehicle parc is digitalising, analogue instruments and their approved repairers thin out every year, and the skills to run the paper system retire with the people who hold them. The sensible posture is planned transition rather than crisis replacement: know which vehicles still run analogue and their replacement horizon; keep the chart discipline fully alive until each vehicle’s last analogue day - compliance does not grandfather; preserve the analysis skill while it is needed - at least two people in the office who can read a chart, because the examiner’s ability to read one is not retiring; and keep the paper archive safe through its retention life even after the fleet goes fully digital, because the charts’ legal relevance outlives the instrument that cut them.
One practical note for mixed fleets: where analogue and digital vehicles share drivers, the daily disciplines collide - the driver must know which system they are under today, keep the correct records for it, and never let one system’s habits leak into the other. The induction and the allocation sheet should make the day’s system explicit; the examiner at the roadside certainly will.
The chart, in the end, is transport history cut in wax: the industry’s oldest compliance record, still legal, still examined, still capable of ending a career that treats it carelessly. Teach someone to read it before the last reader retires.
For the driver, the daily chart routine is short and strict: new chart, centrefield complete before the wheels turn, mode selector moved honestly through the day, chart removed, signed and kept safe at the end. Four habits, every day, no exceptions - the analogue system forgives nothing else.