Until 31 December 2015, where registration taxes have been maintained, graduated progressive tax differentiation shall be applied to each particular passenger car on the basis of its carbon dioxide and pollutant emissions, measured in grams per kilometre, and its fuel consumption, calculated in litres per 100 kilometres in accordance with the parameters laid down by Directive 1999/100/EC .
Tot 31 december 2015 wordt de registratiebelasting, voor zover zij werd gehandhaafd, voor elke individuele personenauto geleidelijk progressief gedifferentieerd op basis van CO 2 -uitstoot en verontreinigende emissies, gemeten in gram per kilometer, en brandstofverbruik, berekend in liters per 100 kilometer, in overeenstemming met de parameters zoals vastgelegd in Richtlijn 1999/100/EG .