In Service Conformity

Starting 2021, we have introduced a new monitoring procedure which aims at a better verification of In Service Conformity (ISC) of vehicles with e4 emission type approval. This means that RDW will conduct emission tests in order to verify that vehicles in use are still in compliance with issued e4 emission type approvals on a yearly basis. Therefore, from now on we are also responsible as a monitoring authority for the relevant environmental requirements.


This new form of monitoring is the consequence of Commission Regulation (EU) 2018/1832 which came into force on 1 January 2019. This regulation leads to an amendment of Directive 2007/46/EC (which has now been replaced by 2018/858) and the emissions regulations 692/2008 and 2017/1151.

Consequences of new monitoring procedure

As a manufacturer, you are going to encounter the following:

  • Request to send documents

    In preparation for the tests, we may ask you for relevant documents. This includes the Certificate of Conformity (CoC) and the information package on test transparency (2018/1832 appendix 2, section 5.9).

  • Costs

    You have to pay the costs for the tests. This is stipulated in the European Regulation. These costs consist of receiving and preparing the vehicles, conducting the emissions tests, and drawing up the test reports. These activities are outsourced to a technical service carefully selected by us.
    You also have to pay for work done by an RDW technical inspector relating to these tests. This might include assessing the test reports and the issued emission approvals, reporting and handling any non-conformities. The work of this technical inspector is charged at a set hourly rate (+ a supplement of 15% on an hourly rate of a technical inspector).
  • Possible actions resulting from the test

    If non-conformities are discovered during the tests, you, the manufacturer, must submit a plan with the corrective measures to us within a certain timeframe. When we have approved this plan, you will have to implement the plan so that the vehicles’ conformity is restored.

More information

For more information about In Service Conformity, you can reach out to us by sending an email to [email protected]

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