(2)In relation to testing with portable emission measurement systems (PEMS), Commission Regulation (EU) 2016/1718note introduced requirements on both urban trip share as well as the total trip length. Especially on some N3 category vehicles equipped with an engine with higher power rating, it has been discovered that, due to those limiting requirements, PEMS testing in accordance with the current provisions will result in void tests. In order to resolve the issue, the conditions for compliance with the urban window requirement should be amended, with the urban trip being enlarged at the expense of the motorway trip share and the maximum overall trip length extended.
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