The weighbridge reading that is under GVM but over the RUC band
Rangi drives a three-axle rigid truck with a gross vehicle weight of 24,000 kg for a small freight firm. The truck's RUC licence was bought for the 20,000 kg weight band, because that was the cheapest option that covered the truck when it was running light, and the firm has kept renewing at the same band ever since. Today the truck is loaded with 11 tonnes of stock feed and, on the way north, is directed onto the weighbridge at a permanent weighing station. The scale reads 22,400 kg, which is under the truck's GVM. The RUC licence has 600 km of distance left on it. Rangi has heard that being caught under-licensed for RUC means paying the difference, and he thinks that because he is under his GVM nothing is really wrong.
1. Explain how road user charges work, and why the weighbridge reading is a problem even though the truck is under its GVM.
Read the worked answer
RUC is a distance-based charge. The operator buys a licence for a set distance, usually in 1,000 km units, at a rate set by the vehicle type and its licensed weight band. Heavier bands pay more per kilometre because heavier vehicles do far more damage to the road. The licence label must be carried and displayed, and a hubodometer or approved electronic distance recorder tracks the distance run.
At 22,400 kg the truck is under its 24,000 kg GVM, so it is not overloaded. But it is over the 20,000 kg band it is licensed for, and that is the problem:
- The licence weight must match the weight the vehicle actually operates at. The band is not a budget option - it is a declaration of operating weight.
- The operator has been paying the rate for a lighter vehicle while running a heavier one, so the RUC paid is short on every trip, not just this one.
- Being under-licensed for weight is an offence in its own right, separate from any axle or GVM overload. The remedy is the correct RUC for the distance plus a penalty, not simply the few dollars of difference Rangi has heard about.
2. What should Rangi do now, at the weighbridge? Can he keep going?
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He should not try to talk his way past it, and he should not simply drive on because the 600 km of distance is still valid.
- Cooperate with the inspector and produce the RUC licence label and the hubodometer reading.
- Contact the operator. The RUC licence is the operator's responsibility, not the driver's, but the driver cannot lawfully continue at the wrong band and should not be paying for the company's licence out of his own pocket.
- Get the licence corrected before continuing. The correct weight band can be bought online in 1,000 km units, and the vehicle should not leave the weighbridge until it is licensed for the weight it is running at.
- Reduce the load if that is the only option - but only where the lower weight genuinely matches a lower band the truck will operate at. A licence bought at 20,000 kg while the truck still grosses 22,400 kg is the same problem again.
- Record what happened and pass it to the operator, so the systemic under-licensing gets fixed rather than blamed on the driver who happened to be stopped.
3. How should the firm fix this so it does not happen again? What operational controls would you put in place?
Read the worked answer
This is an office problem, not a roadside problem, so fix it at the office:
- License at the heaviest realistic weight. Work out the maximum gross the truck will run at - truck plus load, or truck plus trailer plus load - and buy RUC at that band permanently. Do not buy the cheapest band the truck sometimes runs at.
- Weigh loaded vehicles. Use the weighbridge or a certified axle weigher, and keep the records. The GVM plate, the axle limits and the RUC band all need to line up, and the driver should not be the first person to find out they do not.
- Never let the distance run out mid-trip. Buy the next licence before the hubodometer reaches the licensed distance; running past the licensed distance is the same family of offence and it is just as avoidable.
- Make renewals a dispatch check. The person allocating the load should confirm the label and the band match the job before the truck leaves.
- Train drivers on what the label, the band and the hubodometer actually mean, so they can spot the mismatch early and query it rather than inheriting the risk.