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2023/0134(COD)ETrilogues (interinstitutional negotiations)

CO2 emission class of heavy-duty vehicles with trailers

In interinstitutional negotiations (trilogues). Parliament and Council are working toward a provisional agreement, which would still need formal adoption to become law.

Last active 08 Jun 2026

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What this bill does

In plain terms: what it changes and who it affects.

This bill makes trailer efficiency affect CO2-based road charges for heavy-duty vehicle combinations in the EU.

Who it affects

It affects road freight operators using heavy goods vehicles with trailers, especially those choosing more energy-efficient trailers. It also affects trailer owners and buyers through registration and tolling information requirements.

Core of the proposal
  • Adds trailer efficiency to CO2 emission-class calculations for heavy-duty vehicle combinations.
  • Makes trailer effects optional until 30 June 2030 and mandatory from 1 July 2030.
  • Creates trailer classes based on efficiency-ratio thresholds, with delegated acts to set and update them.
  • Adds trailer efficiency data to vehicle registration and cross-border toll enforcement information.
Key provisions
Takes effect
The Directive enters into force on the twentieth day following publication in the Official Journal.
Transitional law
Member States must transpose it within one year; trailer effects are optional until 30 June 2030 and mandatory from 1 July 2030.
Articles changed · 9 across 3 laws
  • Directive 1999/62/EC (31999L0062)
    • art. 2(1): replaces points 29(a), 30(b), 37 and 38; adds definitions 42 and 43
    • art. 7ga: replaces paragraph 1 subparagraphs and paragraph 7 first subparagraph
    • art. 7gc: inserts new Article 7gc on trailers’ effect on CO2-based road charges
    • art. 7j(2a): replaces first subparagraph on evidence of vehicle or combination emission class
    • art. 9d: replaces first subparagraph to include Annex VIII efficiency ratio thresholds
    • art. 11: replaces point (c) to add reporting on Article 7gc variation
    • art. Annex VIII: adds new Annex VIII on trailer classes and efficiency ratio thresholds
  • Directive (EU) 2019/520 (32019L0520)
    • art. Annex I: replaces Part I with vehicle data including trailer-related information
  • Directive 1999/37/EC (31999L0037)
    • art. Annex I: adds points V.11 and V.12 on trailer efficiency ratio and trailer class

Latest update

16 Jun 2026

The most recent development in this bill's progress.

Trilogues (interinstitutional negotiations) → Trilogues (interinstitutional negotiations)

Trilogues (interinstitutional negotiations)Trilogues (interinstitutional negotiations)

Documents

1 recent

SourcesOEILEUR-LexEU Law Tracker