**Executive Summary**
Commission Implementing Regulation (EU) 2025/2335, dated November 20, 2025, sets the reference CO2 emissions for the 2019 reporting period. It aims to make reference CO2 emissions legally binding for manufacturers who entered the Union market after 2019. The regulation enters into force on the third day following its publication in the Official Journal of the European Union.
**Key Points / Main Content**
* **Reference CO2 Emissions:**
* Sets the reference CO2 emissions for vehicle sub-groups for the 2019 reporting period, as referred to in Article 11(1) of Regulation (EU) 2019/1242.
* Reference CO2 emissions are outlined in the Annex to the Regulation.
* **Entry into Force:**
* The Regulation enters into force on the third day following its publication in the Official Journal of the European Union.
**Impact Analysis**
**Manufacturers of heavy-duty vehicles entering the Union market after 2019**
**Impact**
* The reference CO2 emissions will be legally binding for manufacturers who entered the EU market after the 2019 reporting period.
**Action Required**
* Comply with the set reference CO2 emissions values for the vehicle sub-groups outlined in the Annex.
* Monitor publication in the Official Journal to determine the exact entry into force date.
Key Entities Referenced
Regulation (EU) 2019/1242: Regulation setting CO2 emission performance standards for new heavy-duty vehicles
Commission Implementing Regulation (EU) 2025/2335: Regulation setting the reference CO2 emissions for the reporting period of the year 2019
Regulation (EU) 2018/956: Regulation on the monitoring and reporting of CO2 emissions from and fuel consumption of new heavy-duty vehicles
European Parliament: Legislative body involved in regulations concerning CO2 emissions from heavy-duty vehicles.
Council: Governing body involved in regulations concerning CO2 emissions from heavy-duty vehicles.
Official Journal EN
of the European Union L series
2025/2335 21.11.2025
COMMISSION IMPLEMENTING REGULATION(EU) 2025/2335
of 20 November 2025
setting the reference CO emissions for the reporting period of the year 2019
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(Text with EEA relevance)
THE EUROPEAN COMMISSION,
Having regard to the Treaty on the Functioning of the European Union,
Having regard to Regulation (EU) 2019/1242 of the European Parliament and of the Council of 20 June 2019 setting CO
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emission performance standards for new heavy-duty vehicles and amending Regulation (EC) No 595/2009 and
(EU) 2018/956 of the European Parliament and of the Council and Council Directive 96/53/EC(1), and in particular
Article 11(1), second subparagraph, thereof,
Whereas:
(1) In order to make the reference CO emissions set out in Annex II to Commission Implementing Decision
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(EU) 2021/781(2)legally binding for manufacturers who were not addressees of that Decision as they only entered
the Union market after the reporting period of the year 2019 by registering vehicles falling into the vehicle
subgroups referred to in Annex II to that Decision, those reference CO emissions should be readopted in this
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Regulation.
(2) To determine the specific CO emissions targets and the CO emissions reduction trajectories, the reference
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CO emissions of the vehicle sub-groups to which the reporting period of the year 2019 applies as reference period
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should be based on the data reported under Regulation (EU) 2018/956 of the European Parliament and of the
Council(3),
HAS ADOPTED THIS REGULATION:
Article 1
Reference CO emissions
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The reference CO emissions, referred to in Article 11(1), second subparagraph, of Regulation (EU) 2019/1242, of the
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vehicle sub-groups to which the reporting period of the year 2019 applies as reference periodare set out in the Annex to
this Regulation.
(1) OJ L 198, 25.7.2019, p. 202, ELI: http://data.europa.eu/eli/reg/2019/1242/oj.
(2) Commission Implementing Decision (EU) 2021/781 of 10 May 2021 on the publication of a list indicating certain CO emissions
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values per manufacturer as well as average specific CO emissions of all new heavy-duty vehicles registered in the Union and reference
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CO emissions pursuant to Regulation (EU) 2019/1242 of the European Parliament and of the Council for the reporting period of the
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year 2019 (OJ L 167, 12.5.2021, p. 47, ELI: http://data.europa.eu/eli/dec_impl/2021/781/oj).
(3) Regulation (EU) 2018/956 of the European Parliament and of the Council of 28 June 2018 on the monitoring and reporting of CO
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emissions from and fuel consumption of new heavy-duty vehicles (OJ L 173, 9.7.2018, p. 1, ELI: http://data.europa.eu/eli/reg/2018/
956/oj).
ELI: http://data.europa.eu/eli/reg_impl/2025/2335/oj 1/3EN
OJ L, 21.11.2025
Article 2
Entry into force
This Regulation shall enter into force on the third day following that of its publication in the Official Journal of the European
Union.
This Regulation shall be binding in its entirety and directly applicable in all Member States.
Done at Brussels, 20 November 2025,
For the Commission
The President
Ursula VON DER LEYEN
2/3 ELI: http://data.europa.eu/eli/reg_impl/2025/2335/ojEN
OJ L, 21.11.2025
ANNEX
Reference CO emissions, referred to in Article 11(1), second subparagraph, of Regulation (EU) 2019/1242, for the
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reporting period of the year 2019:
Sub-group sg rCO in g/tkm
2sg
4-UD 307,23
4-RD 197,16
4-LH 105,96
5-RD 84,00
5-LH 56,60
9-RD 110,98
9-LH 65,16
10-RD 83,26
10-LH 58,26
ELI: http://data.europa.eu/eli/reg_impl/2025/2335/oj 3/3