Commission Implementing Regulation (EU) 2025/1707 of 25 July 2025 laying down rules for the application of Regulation (EU) 2024/1257 of the European Parliament and of the Council as regards specific methods, requirements and tests, including compliance thresholds, for OBFCM devices and OBM systems, characteristics and performance of driver warning systems and inducement methods and methods to assess their operation, EVP format and data and methods of communication of EVP data of motor vehicles of categories M1 and N1

THE EUROPEAN COMMISSION,

Having regard to the Treaty on the Functioning of the European Union,

Having regard to Regulation (EU) 2024/1257 of the European Parliament and of the Council of 24 April 2024 on type-approval of motor vehicles and engines and of systems, components and separate technical units intended for such vehicles, with respect to their emissions and battery durability (Euro 7), amending Regulation (EU) 2018/858 of the European Parliament and of the Council and repealing Regulations (EC) No 715/2007 and (EC) No 595/2009 of the European Parliament and of the Council, Commission Regulation (EU) No 582/2011, Commission Regulation (EU) 2017/1151, Commission Regulation (EU) 2017/2400 and Commission Implementing Regulation (EU) 2022/1362⁽¹⁾, and in particular Article 14(3), point (a) and Article 14(4), points (j), (k), (o), (s), (t), (u) and (v), thereof,

Whereas:

Regulation (EU) 2024/1257 requires the Commission to set out procedures and testing methodologies, administrative provisions, procedures and methodologies for amending and extending emission type-approvals and data access, documentation requirements and templates for emission type-approval, conformity of production, in-service conformity and market surveillance for types of vehicles of categories M1 and N1. By virtue of Article 5(2) and (3) of Regulation (EU) 2024/1257, those rules should apply also to N2 vehicles designated as ‘Euro 7ext’ and ‘Euro 7Gext’ in accordance with that Article.
In particular, rules should be laid down regarding on-board monitoring (OBM) systems, excess exhaust emissions driver warning systems (EEEDWS), on-board fuel and electric energy consumption monitoring (OBFCM) devices, environmental vehicle passport (EVP) and in-vehicle display of environmental data and manipulation devices and manipulation strategies.
The state of development of on-board sensors allows the continuous estimation of the emission rates of nitrogen oxides from light-duty vehicles. The emissions of other pollutants such as particulate matter can be reliably monitored by monitoring the integrity of particulate filters. It is therefore appropriate to set out requirements for OBM systems that include on-board sensors to assign a monitoring status to exhaust pollutants of interest to provide information to authorities about the functioning of emission control systems and the quality of exhaust emissions monitoring.
For reasons of simplification and to achieve effective implementation of Regulation (EU) 2024/1257, it is appropriate to lay down rules specifying the general requirements for OBM and EEEDWS systems, OBFCM devices, EVP and in-vehicle display of environmental data laid down in that Regulation. Likewise, it is also appropriate to set out rules for the calculation of the OBM data parameters, for the on-board processing of OBM data, and for access to OBM data via the OBD port.
To ensure that the measures used by OBM systems to induce repairs do not lead to road safety being endangered, it is appropriate that those systems use harmonised inducement methods.
To ensure secure transmission of OBM data over the air, it is appropriate to allow manufacturers to use their own infrastructure and cybersecurity methods provided they comply with United Nations Regulation No 155⁽²⁾.
To ensure the submission of anonymous OBM data by vehicle manufacturers, it is appropriate to lay down requirements to that effect.
To ensure that the anonymous OBM data transmitted to authorities is representative of the aggregate in-service emissions behaviour of vehicle types, it is appropriate to establish methods for the random sampling of OBM data to be transmitted over the air. Where the measures provided for in this Regulation entail the processing of personal data, that processing should be carried out in accordance with Regulations (EU) 2016/679⁽³⁾ and (EU) 2018/1725⁽⁴⁾ of the European Parliament and of the Council, as well as the relevant national law in accordance with those Regulations.
To ensure effective implementation of OBM systems over the lifetime of vehicles placed on the market, specific requirements should be set out to address in-service conformity testing and market surveillance of such systems.
Vehicles for which the OBM system has identified a potential malfunction or tampering should be considered to be in the process of being repaired. It is therefore appropriate to exclude such vehicles from certain aspects of in-service conformity testing.
Requirements for OBM systems should adhere to the principle of technology neutrality where possible. It is therefore appropriate to lay down rules for the processing and transmission of OBM data which are broadly applicable to all powertrains, while recognising that certain OBM parameters may not be relevant to certain powertrains, for example, battery durability parameters for vehicles not equipped with a traction battery, or exhaust emission parameters for vehicles without an engine, and should not be processed in such cases.
Certain OBM parameters that characterise the exhaust emissions of vehicles are also relevant to OBFCM devices. It is therefore appropriate to identify such parameters and to ensure they are transmitted by the vehicles using the data transmission methods envisaged for OBM systems, with a view to minimise the duplication of data that are transmitted over the air by OBM systems and OBFCM devices.
The methods and administrative arrangements for the transmission of anonymous OBM data from manufacturers to authorities should be set out at a later stage of implementation. It is therefore appropriate to refer to these by using generic terms such as ‘authority server’ that do not prejudge the solutions that will be implemented.
It is appropriate to specify the technical requirements so that vehicles make available information on their environmental performance through the EVP and, where appropriate, also by displaying relevant information inside the vehicle. The EVP should use technical solutions that ensure the interoperability with other digital product passports. To ensure the availability of information over time, EVP data should be made available by means of a QR code. The QR code acting as a data carrier for EVP data should respect the guidelines of ISO/IEC Standard 18004:2024.
A robust framework for the prohibition of manipulation devices and manipulation strategies should ensure that the emissions behaviour of vehicles is not altered between compliance testing and real-world driving, and that data on sensors, fuel or electric energy consumption, electric range, and battery durability remains accurate and reliable. It is therefore appropriate to set out general and technical requirements, as well as specific documentation requirements, to implement the prohibition of manipulation devices and manipulation strategies, and to clarify the roles and responsibilities of manufacturers, type-approval authorities, market surveillance authorities, the Commission and recognised third parties.
The measures provided for in this Regulation are in accordance with the opinion of the Technical Committee – Motor vehicles (TCMV),

HAS ADOPTED THIS REGULATION:

Article 1 Subject matter and scope

This Regulation lays down measures for the implementation of Regulation (EU) 2024/1257, with regard to the following:

on-board monitoring (OBM) systems including their sensors and driver warning systems;
on-board fuel and electric energy consumption monitoring (OBFCM) devices;
the format and data and off-board communication methods for the environmental vehicle passport (EVP);
methods for in-vehicle display of environmental data about the vehicle type and the environmental performance of the individual vehicle;
methods and procedures to establish the absence of manipulation devices and manipulation strategies.

This Regulation applies to the motor vehicles belonging to the following vehicle categories:

M1 and N1;
N2 designated as ‘Euro 7ext’ and ‘Euro 7Gext’ in accordance with Article 5 of Regulation (EU) 2024/1257.

Article 2 Definitions

For the purpose of this Regulation, the following definitions shall apply:

‘OBM data’ means data produced by the ‘on-board monitoring system’ or ‘OBM system’, including battery durability data;
‘OBM trip’ means each period of vehicle operation that starts with the activation of the propulsion system and ends with the deactivation of the propulsion system. For the purpose of determining the end of an OBM trip, sequences of engine shut-off events followed by an engine re-start commanded by the vehicle control system (as a result of the operation of stop-start systems, hybrid vehicle control or automatic stall recovery) shall not be considered a deactivation of the propulsion system;
‘OBM trip data’ means OBM data that relate to a particular OBM trip;
‘OBM hash function’ means a standard mathematical algorithm implemented on-board the vehicle that takes a set of OBM data and converts it into a string of characters with a fixed predetermined length, and whose properties can be used to randomly select OBM data to be transmitted over the air, or to verify the integrity of the transmission of OBM data while preserving their anonymous nature;
‘OBM hash value’ means the output of the OBM hash function for a given input;
‘OBM data schema’ means a fixed structure for data that are input to the OBM hash function;
‘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;
‘QR code’ means a machine-readable matrix code that links to information;
‘Auxiliary Emission Strategy’ or ‘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;
‘Base Emission Strategy’ or ‘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.

Article 3 General requirements for OBM systems

The manufacturer shall ensure that the OBM systems perform the functions as laid down in Articles 4 to 10 by means of hardware and software installed in the vehicle for as long as the vehicle is in use.

The manufacturer shall ensure that OBM systems comply with the OBM data requirements as laid down in Annex I.

Article 4 General requirements for the excess exhaust emissions driver warning system

The manufacturer shall ensure that the excess exhaust emissions driver warning system (EEEDWS) performs the following functions:

assign the OBM monitoring status of NOx and particulate matter (PM) in accordance with Article 5;
provide driver warnings in accordance with Annex II as long as one or more of the exhaust emissions monitoring statuses is in ‘Error’ status;
if driver warnings referred to in point (b) are not acted upon within the period specified in Annex II, limit vehicle use through harmonised inducement methods described in that Annex until appropriate repairs are carried out.

The EEEDWS may assign the monitoring status for exhaust emissions other than NOx and PM using a generic OBM monitoring status parameter. Points (b) and (c) of paragraph 1 shall apply with regard to the generic OBM monitoring status parameter.

Article 5 OBM monitoring status of exhaust emissions

Article 6 Calculation of NOx emissions for each OBM trip

Article 7 Calculation of other OBM data for each OBM trip

Article 8 Calculation of hash value and on-board processing of OBM data

Article 9 Over-the-air transmission of OBM data

Article 1 Subject matter and scope

Article 2 Definitions

Article 3 General requirements for OBM systems

Article 4 General requirements for the excess exhaust emissions driver warning system

Article 5 OBM monitoring status of exhaust emissions

Article 6 Calculation of NOx emissions for each OBM trip

Article 7 Calculation of other OBM data for each OBM trip

Article 8 Calculation of hash value and on-board processing of OBM data

Article 9 Over-the-air transmission of OBM data

Article 10 Access to OBM data via OBD port

Article 11 Submission of anonymous OBM data

Article 12 Requirements for emission type-approval

Article 13 In-service conformity checks of OBM systems

Article 14 OBM monitoring status and eligibility of vehicles for in-service conformity checks

Article 15 Market surveillance of OBM systems

Article 16 Requirements for OBFCM devices

Article 17 Environmental vehicle passport

Article 18 In-vehicle display of environmental data

Article 19 Manipulation devices and manipulation strategies

Article 20 Entry into force

LIST OF ANNEXES

ANNEX IOBM DATA REQUIREMENTS

Appendix 1OBM parameters to support vehicle testing

Appendix 2OBM trip parameters

Appendix 3OBM lifetime parameters

Appendix 4OBM outbox property parameters

Appendix 5Battery durability parameters

Appendix 6OBM data storage parameters

Appendix 7OBM data schemas

Appendix 8OBM data processing flowchart

ANNEX IIDRIVER WARNINGS AND INDUCEMENT METHODS OF THE EXCESS EXHAUST EMISSIONS DRIVER WARNING SYSTEM

Appendix 1Schematic diagrams

ANNEX IIIDECLARATION OF COMPLIANCE

Appendix 1MANUFACTURER’S DECLARATION OF COMPLIANCE WITH OBM, EVP AND IN-VEHICLE DISPLAY OF ENVIRONMENTAL DATA REQUIREMENTS

Appendix 2DEMONSTRATION FORM

ANNEX IVMETHODS FOR IN-SERVICE CONFORMITY CHECKS AND MARKET SURVEILLANCE OF OBM SYSTEMS

Appendix 1Compliance criteria for an OBM family

ANNEX VENVIRONMENTAL VEHICLE PASSPORT

Appendix 1Environmental vehicle passport parameters

ANNEX VIIN-VEHICLE DISPLAY OF ENVIRONMENTAL DATA

Appendix 1Parameters to be displayed inside the vehicle

ANNEX VIIMANIPULATION DEVICES AND MANIPULATION STRATEGIES