Heavy-duty vehicles: PEMS tests must also record readings of the on-board OBFCM device, and emissions type-approval requires compliance with Regulation 2025/2161 — Regulation (EU) 2026/361, new “E+” character from 1 July 2027
Commission Regulation (EU) 2026/361 of 19 February 2026, published on 20 February, amends Regulation (EU) No 582/2011 (Euro VI). It links emissions type-approval to the requirements of Implementing Regulation (EU) 2025/2161 for on-board fuel and energy consumption monitoring devices (OBFCM) and on-board mass monitoring (OBMM), and adds to the portable emissions measurement system (PEMS) test report the data needed to assess OBFCM accuracy.
- The PEMS test report (Annex II to Regulation 582/2011) now includes: odometer reading at the end of the test, the actual vehicle mass with payload, instantaneous OBFCM data — total lifetime fuel consumed and distance travelled, engine and vehicle fuel flow in g/s, gross vehicle mass — and OBFCM values at the start and end of the test, cumulative fuel flow in grams and average gross vehicle mass.
- Rationale: fuel consumption and CO2 values from the regulatory procedures of Regulation (EU) 2017/2400 are supplemented by OBFCM data on average real-world consumption on the road, so the accuracy of these devices must be checked in on-road tests. Under Regulation 2025/2161 the type-approval authority assesses the monitoring data for OBFCM accuracy and, if the requirement is not met, carries out a verification test.
- Table 1 of Appendix 9 to Annex I gains the character “E+” for vehicles covered by Regulation 2025/2161 — with 1 July 2027 as the date for new vehicles. After in-service conformity tests or OBFCM or OBMM verification tests, the manufacturer has 60 working days to submit a remedial plan.
- From 1 July 2027 national authorities will treat certificates of conformity of new vehicles within the scope of Regulation 2025/2161 that do not meet these requirements as invalid and refuse their registration. The new Article 17a(6) also sets dates after which certificates of conformity of new vehicles and engines lose validity regardless of OBFCM: generally 29 May 2029 (except replacement engines for vehicles in use), 29 November 2027 for M1 and N1 vehicles within the scope of Regulation 595/2009, and for vehicles of small manufacturers 1 July 2030 (M1, N1) and 1 July 2031 (M2, M3, N2, N3).