Emissions of nitrogen oxides (NOx)

  • Passenger Car
  • Nitrogen oxides (NOx)


Requirements and Criteria Type: 
  • Award Criteria

Main Objective: 

The main purpose of the environmental criterion is to reduce the quantity of nitrogen oxides (NOx) originating from exhaust emissions.

Formulation of the Award Criteria: 

Tendered cars that emit less than 35 mg NOX/km in mixed driving will be awarded points on a scale of 0-10 where 10 points is the best.

Documentation of the Award Criteria: 

NOx emissions will be assessed based on the information in the Norwegian Public Roads Administration's "New Vehicle Chooser".

The buyer can also check the "Environmental and energy labelling for new cars" label per car model. All dealers are required to have a label that describes the car's environmental and energy properties.

Information about the Award Criteria: 

The criterion's weighting must be assessed in relation to the organisation's overarching climate and environmental objectives. It is important that the buyer sets a requirement of 35 mg NOx/km.

Difi's power output meter can be used to show the climate and environmental effects of the selected requirement and criterion in a given reference scenario.

 Use the Norwegian Public Roads Administration's "New Vehicle Chooser" to see a list of the vehicle models that satisfy the requirement.

The "Environmental and energy labelling for new cars" label provides guidance on CO2 and NOx emissions.

Related links: 

Published: 14. Feb 2018, Last modified: 31. May 2019