Car manufacturers will be able to overshoot vehicle emission levels by 20% in the long-term to take account of uncertainties in emissions measurement, under a European Commission proposal.
The permanent ‘conformity factor’ of 1.2 on diesel vehicles’ NOx emissions would apply from 2019, according to proposed rules, seen by ENDS, for a new real driving emissions (RDE) test.
The test, which will replace widely criticised laboratory assessments that allow carmakers to make emissions seem much lower than they really are, would be implemented from September 2017 for new car models. In the meantime it would only apply for monitoring purposes.
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