Tyres, Telematics and Spanish CAEs for Fleets

Create a fleet register with registration number or stable identifier, category, ownership or lease status, fuel, depot and service. Mark vehicles entering or leaving the fleet. TRA010 and TRA020 may have different scope conditions, so one master register should feed two clearly separated eligibility tests. Use effective entry and exit dates so each vehicle contributes only eligible mileage while it is in the controlled fleet.

For every tyre position, record old and new size, axle, product, efficiency class and fitting date. A purchase quantity does not show which vehicle received each unit. Spare stock, puncture replacements and seasonal changes need treatment so tyres are not counted before they enter service. Link every fitted tyre to a vehicle, axle and service date before assigning distance or efficiency-class effects.

Mileage must relate to eligible vehicles and the authorised period. Use odometer readings, inspection records, fuel-card systems or telematics exports with consistent timestamps. Contracted kilometres and route plans are not evidence that distance was actually driven. Reconcile odometers across inspections and data systems, investigating resets, replacements and unexplained discontinuities.

Rolling resistance affects energy per kilometre, while tyre pressure, alignment, load and driving conditions also matter. Do not attribute a maintenance campaign automatically to the tyre-class change. Preserve the class evidence applicable to the exact size and model installed. Pressure and alignment records help separate tyre-class performance from maintenance improvements delivered at the same time.

For telematics, identify devices, data fields, sampling, vehicle activation and the operational actions expected: idling alerts, route planning, speed management or driver feedback. Hardware that transmits location without a management process does not demonstrate that fuel use changed. Document the management response to each telematics signal, because data collection without action has no demonstrated mechanism.

Choose a representative comparison that addresses route mix, payload, weather and vehicle utilisation. Fuel per kilometre can help diagnose performance but the standardised calculation must follow TRA020. State how missing trips, replacement vehicles and data outages are handled. Comparison groups should preserve route and payload mix or disclose adjustments supported by auditable trip-level data.

Separate the TRA010 calculation from TRA020 and cap each at its eligible mileage boundary. If telematics also improves tyre pressure or route selection, prevent the same kilometre effect from being credited under several narratives. Keep calculation workbooks versioned by vehicle. Calculate tyre and telematics effects in separate workbooks before applying any shared mileage cap or interaction rule.

Collect fitting invoices, tyre labels, device serial numbers, installation records, screenshots showing active data and odometer evidence. Photographs should include the vehicle identifier and relevant component. Reconcile cancelled subscriptions and transferred devices before finalising quantities. Device transfers and subscription gaps require dated reassignment records so inactive hardware is not counted as operating.

Fleet churn is a major audit risk: sold vehicles, short-term rentals and replacements can distort annualisation. Log effective dates and ownership changes. Investigate implausible odometer jumps, duplicate registration numbers and mileage accumulated before the eligible measure was installed. Fleet turnover should be reflected vehicle by vehicle rather than hidden in an annual average registration count.

Recheck the current TRA010 and TRA020 wording, annexes and date rules for each subpopulation. The estimate is conditional on verification and does not secure issuance or payment. Present managers with conservative mileage and persistence scenarios rather than valuing every planned kilometre as a certain CAE outcome. The reference codes for this review are TRA010 and TRA020. Stress-test lower eligible mileage and weaker persistence instead of valuing all planned distance as certain savings.