Can you please elaborate on the differences between what that gov.uk website states and what it should be for MIRO. Thanks.
It seems that if the government are not clear how can the CAMC decide what kerb weight is on their documentation as basically it is something that is non-existent? I think the CAMC would have a very hard time in a court of law especially if the combination was within the train weight of the towing vehicle.
What the government website doesn’t point out is that MIRO is not the weight of the vehicle in question but that of a basically “naked” vehicle without any factory fitted options that the manufacturer submitted for type approval. The difference may not be very great if not many factory fitted options are offered, as in the case of many UK caravans, but there was a case on another forum recently, involving a foreign make, where because the caravan was fully loaded with practically all available options, the difference between MIRO and actual weight was over 200kg.
In addition, one must bear in mind that manufacturers are not obliged to publish kerbweight and they don’t, even if some call the weights that they quote “kerbweight”. The closest value to kerbweight that they must supply is “actual mass”. Actual mass is documented in the type approval Certificate of Conformity, but in the UK that certificate is seldom passed on to the customer, (it should be and the customer has the right to request it). In fact, it's essential in those countries where the dealer doesn't register the vehicle but the holder personally. In the case of a caravan, actual mass and kerbweight would be the same, but for a car the difference would be:
1. Kerbweight is with a full fuel tank, actual mass includes a tank that is 90% full.
2. Kerbweight is without a driver, actual mass has a 75kg allowance for the driver.
Theoretically, kerbweight also includes all permanent aftermarket features fitted by the dealer or vehicle owner, such as maybe a towbar for example, whereas actual mass is always an ex-works figure.