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

Notes:

• ⁽¹⁾ Only applicable to OVC-HEV, PEV and FCV/FCHV

Appendix 2

OBM trip parameters

Notes

• ⁽¹⁾ A: ICEV; B: NOVC-HEV; C: OVC-HEV; D: PEV; E: FCV/FCHV

• ⁽²⁾ In relation to Article 16

• ⁽³⁾ Applicable if technology is fitted to the vehicle. Otherwise, a value of 0xFF shall be reported

• ⁽⁴⁾ UN Regulation No 154 – Uniform provisions concerning the approval of light duty passenger and commercial vehicles with regards to criteria emissions, emissions of carbon dioxide and fuel consumption and/or the measurement of electric energy consumption and electric range (WLTP), 02 series of amendments (OJ L, 2022/2124, 10.11.2022, ELI: http://data.europa.eu/eli/reg/2022/2124/oj). In the case of a UN Regulation the series of amendments indicated reflects the version that has been published in the Official Journal of the European Union. Compliance with a series of amendments adopted after the particular series indicated shall be accepted as an alternative.

Appendix 3

OBM lifetime parameters

Notes

• ⁽¹⁾ A: ICEV; B: NOVC-HEV; C: OVC-HEV; D: PEV; E: FCV/FCHV

• ⁽²⁾ In relation to Article 16

• ⁽³⁾ Applicable if technology is fitted to the vehicle. Otherwise, a value of 0xFF shall be reported

• ⁽⁴⁾ Not applicable to gaseous fuels

Appendix 4

OBM outbox property parameters

Notes

• ⁽¹⁾ A: ICEV; B: NOVC-HEV; C: OVC-HEV; D: PEV; E: FCV/FCHV

Appendix 5

Battery durability parameters

Notes

• ⁽¹⁾ A: ICEV; B: NOVC-HEV; C: OVC-HEV; D: PEV; E: FCV/FCHV

• ⁽²⁾ May be omitted if the manufacturer does not apply a virtual distance calculation

Appendix 6

OBM data storage parameters

Table 6.1

OBM recent trips

Table 6.2

OBM OTA queue data slots

Table 6.3

OBM OTA outbox data slots

Table 6.4

OBM last transmission list

Table 6.5

OBM transmitted hash list slots (rolling list)

Appendix 7

OBM data schemas

Prior to computation of the OBM data hashes by the applicable control unit, the applicable data parameters shall be combined in the order shown in the tables of this appendix to assure correct use of the big-endian structure and enable consistent verification methods.

Table 1

OBM trip data schema

Table 2

OBM OTA outbox data schema

Appendix 8

OBM data processing flowchart

Image omitted; see official source

ANNEX II

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

1. Introduction

• 1.1.This annex sets out the requirements for driver warnings and inducement method applicable to the excess exhaust emissions driver warning system (EEEDWS). Illustrative schematic diagrams are provided in Appendix 1 to this Annex.

2. Driver warning and inducement method requirements

• 2.1.The driver warnings and inducement methods shall be initiated as soon as at least one of the monitoring statuses of exhaust emissions referred to in Article 5 is set to ‘Error’ and remain active until none of the monitoring statuses are set to ‘Error’.

• 2.2. Counters

• 2.2.1.The EEEDWS shall include the counters described in paragraphs 2.2.3 to 2.2.8 to support the operation of the driver warnings and inducement methods.

• 2.2.2.Further technical specifications of the counters are described in the relevant tables of Annex I.

• 2.2.3. ‘OBM warning distance’ counter

• 2.2.3.1.If any of the monitoring statuses of exhaust emissions is set to ‘Error’, the ‘OBM warning distance’ counter shall increment by a value of 0,1 for every 0,1 kilometres driven with the internal combustion engine running, to record the distance travelled by the vehicle in kilometres since the initiation of the driver warnings.

• 2.2.3.2.The ‘OBM warning distance’ counter shall have a resolution of 0,1 km or any smaller distance, a minimum value of 0 km and a maximum value of at least 6 553,5  km.

• 2.2.3.3.While all monitoring statuses of exhaust emissions have a continuous status other than ‘Error’, the ‘OBM warning distance’ counter may decrement as follows:

• — if the ‘OBM warning distance’ counter has a value greater than 400 km, the counter may decrement by the distance driven in kilometres with the internal combustion engine running,

• — if the ‘OBM warning distance’ counter has a value equal to or lower than 400 km, the counter may decrement by up to 100 km for each accumulated 100 km distance driven with the internal combustion engine running.

• 2.2.3.4.The ‘OBM warning distance’ counter may reset under the following conditions:

• — if any of the monitoring statuses of exhaust emissions is reset using a generic scan tool or service tool, the ‘OBM warning distance’ counter shall reset to 2 400  km or the value at the time of reset, whichever is lower,

• — the ‘OBM warning distance’ counter may reset to zero at the end of a valid OBM trip following a minimum accumulated distance driven with the internal combustion engine running of 400 km while all monitoring statuses of exhaust emissions have a continuous status other than ‘Error’.

• 2.2.3.5.If the ‘OBM warning distance’ counter reaches its maximum value, it shall freeze until one of the conditions to decrement or reset are met.

• 2.2.4. ‘OBM warning distance – lifetime’ counter

• 2.2.4.1.If, during the vehicle lifetime, any of the monitoring statuses of exhaust emissions is set to ‘Error’, the ‘OBM warning distance – lifetime’ counter shall record the distance travelled with any of the monitoring statuses of exhaust emissions in ‘Error’ and the internal combustion engine running.

• 2.2.4.2.The ‘OBM warning distance – lifetime’ counter shall have a resolution of 1 km, a minimum value of 0 km and a maximum value of 65 535  km.

• 2.2.4.3.The ‘OBM warning distance counter – lifetime’ shall not reset to zero, and when it reaches its maximum value, it shall freeze.

• 2.2.5. ‘OBM distance since monitoring status reset’ counter

• 2.2.5.1.The ‘OBM distance since monitoring status reset’ counter indicates the distance travelled with the internal combustion engine running since none of the monitoring statuses of exhaust emissions were last set to ‘Error’.

• 2.2.5.2.The ‘OBM distance since monitoring status reset’ counter shall have a resolution of 1 km or any smaller distance, a minimum value of 0 km and a maximum value of at least 65 535  km.

• 2.2.5.3.The ‘OBM distance since monitoring status reset’ counter shall reset to zero when one of these conditions is met:

• — any of the monitoring statuses of exhaust emissions transition from ‘Error’ to either ‘Normal’ or ‘Intermediate’ status resulting in all monitoring statuses of exhaust emissions having a ‘Normal’ or ‘Intermediate’ status,

• — the monitoring statuses of exhaust emissions are reset using a generic scan tool or service tool.

• 2.2.5.4.If the ‘OBM distance since monitoring status reset’ counter reaches its maximum value, it shall freeze until one of the conditions to reset to zero is met.

• 2.2.6. ‘OBM monitoring status reset – lifetime’ counter

• 2.2.6.1.The ‘OBM monitoring status reset – lifetime’ counter shall count the number of times that any command to reset monitoring statuses or clear OBM data is received from a generic scan tool or service tool during the vehicle’s lifetime. This counter shall be an integer with a minimum value of 0 and a maximum value of 65 535 . If the ‘OBM monitoring status reset – lifetime’ counter reaches its maximum value, it shall freeze and not reset to zero.

• 2.2.6.2.If the monitoring statuses of exhaust emissions are reset as part of a manufacturer software update, it shall not be required to increment the ‘OBM monitoring status reset – lifetime’ counter.

• 2.2.7. ‘OBM current inducement distance’ counter

• 2.2.7.1.The ‘OBM current inducement distance’ counter shall count the distance driven in kilometres with the internal combustion engine running since the current or last inducement period began as described in paragraph 2.4.2.

• 2.2.7.2.The ‘OBM current inducement distance’ counter shall have a resolution of 0,1 km or any smaller distance, a minimum value of 0 km and a maximum value of at least 6 553,5  km. If the counter reaches its maximum value, it shall freeze and not reset.

• 2.2.7.3.If the inducement period is paused as described in paragraph 2.4.3, the ‘OBM current inducement distance’ counter shall freeze.

• 2.2.7.4.The ‘OBM current inducement distance’ counter shall reset to zero when one of the following conditions is met:

• — the inducement system is activated as defined in paragraph 2.4,

• — the monitoring statuses of exhaust emissions are reset using a generic scan tool or service tool.

• 2.2.8. ‘OBM inducement distance – lifetime’ counter

• 2.2.8.1.The ‘OBM inducement distance – lifetime’ counter shall count the distance driven in kilometres with the internal combustion engine running during the vehicle lifetime while inducement is active.

• 2.2.8.2.The ‘OBM inducement distance – lifetime’ counter shall have a resolution of 1 km, a minimum value of 0 km and a maximum value of 65 535  km. If the counter reaches its maximum value, it shall freeze and not reset.

• 2.2.8.3.If the inducement period is paused or reset as described in paragraph 2.4.3 the ‘OBM inducement distance – lifetime’ counter shall freeze until conditions to increment are met.

• 2.3. Driver warnings

• 2.3.1. General requirements for the display of driver warnings

• 2.3.1.1.The EEEDWS shall include a warning system consisting of visual alarms to inform the driver when faults or tampering that prevent adequate emissions control or adequate performance of the OBM system have been identified. The warning system may also include an audible component to alert the driver.

• 2.3.1.2.A facility to permit the driver to dim the visual warnings and mute the audible component of the warning system may be provided on vehicles designed and constructed for use by the rescue services, armed services, civil defence, fire services and forces responsible for maintaining public order.

• 2.3.1.3.If any of the monitoring statuses of exhaust emissions is set to ‘Error’, the MI as defined in UN Regulation No 154, Annex C5, shall be continuously activated, and an appropriate driver warning shall be displayed according to paragraphs 2.3.2, 2.3.3 and 2.3.4. The driver warning displayed shall be sufficiently clear for the driver to understand that faults or tampering that prevent adequate emissions control or monitoring and justify a repair have been identified by the OBM system. The driver warning shall also indicate the remaining distance until the repair inducement will be activated.