Article 5 · Commission Implementing Regulation (EU) 2025/1707

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Article 5OBM monitoring status of exhaust emissions#

1.The manufacturer shall ensure that each OBM monitoring status is individually set. Each OBM monitoring status may be updated once after the end of each OBM trip as one of the following:

(a)‘Normal’ status, which shall indicate that the emissions control systems installed on the vehicle are judged to be functioning adequately and the OBM system has high confidence in the accuracy of OBM monitoring;

(b)‘Intermediate’ status, which shall indicate that the OBM system is unable to make a conclusive assessment of the status of the relevant emissions control systems or that an increased uncertainty in OBM monitoring values may exist;

(c)‘Error’ status, which shall indicate that faults or tampering that prevent adequate emissions control or monitoring and justify a repair have been identified.

As an indicative target when designing the OBM system, the manufacturer shall ensure that if the OBM determines that the vehicle may be in a state where its exhaust emissions as evaluated via a real-driving emissions (RDE) or other applicable in-service conformity test would be equal or higher than 2,5 times the applicable emission limit, the ‘Error’ status shall be activated.

2.The manufacturer may use any available data or engineering approach which allows the EEEDWS to determine the monitoring status of a pollutant, based on the expected exhaust emissions or performance of emissions control systems of a vehicle.

Defined terms · 4

Show every defined term

AES
means an emission strategy that becomes active and replaces or modifies a BES for a specific purpose and in response to a specific set of ambient or operating conditions and only remains operational as long as those conditions exist;
BES
means an emission strategy that is active throughout the speed and load operating range of the vehicle unless an Auxiliary Emission Strategy is activated.
generic scan tool
means an external test equipment used for standardised off-board communication with the vehicle’s electronic control systems;
service tool
means a specialised external test equipment used to perform manufacturer-defined service operations via communication with the vehicle’s electronic control systems;