NAP stands for Nationale AutoPas (National Car Pass). For years this foundation recorded odometer readings to fight mileage fraud. Since 1 January 2014, the RDW has registered odometer readings itself. Even so, you will still see 'NAP' or 'NAP logisch' in many Dutch ads. Sellers usually mean that the series of recorded readings goes up consistently. The official term is the RDW's tellerstandoordeel (odometer verdict): logical, illogical or no verdict.
Why it matters when buying or selling
Mileage weighs heavily in a used car's price, so a rolled-back odometer can cost a buyer a lot of money. Don't rely on the word 'NAP' in an ad; check the verdict yourself with our licence plate check.
Selling? As the owner you can download a free RDW vehicle report (voertuigrapport) with DigiD, listing every recorded reading and its date. Sharing it with buyers makes your ad more credible. If the dashboard reading doesn't fit the recorded history, ask for service invoices or book a pre-purchase inspection (aankoopkeuring).