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Emissions & CO2
Emissions & CO2 covers regulatory developments in emissions and fuel economy/CO2 regulations in the EU (European Union), the U.S. (federal and California), China, and India.
Since October 2026, Emissions & CO2 have been updated based on MarkLines' own research.
| Emissions Regulations | EU (European Union) |
Passenger Cars and Light Commercial Vehicles - Euro 6 |
| Passenger Cars and Light Commercial Vehicles - Euro 7 | ||
| EU Vehicle Categories | ||
| USA | U.S. Federal Passenger Cars and Light-Duty Trucks | |
| California Passenger Cars and Light-Duty Trucks | ||
| China | Passenger Cars and Light Commercial Vehicles | |
| India | Passenger Cars and Light Commercial Vehicles | |
| Fuel Economy/CO2 | EU (European Union) |
General |
| USA | U.S. Federal General | |
| California General | ||
| China | General | |
| India | General |
Latest Update
| Date | Regulation | Region | Updated Summaries |
| October 8, 2026 | Emissions Regulations | California | 2025: Added information on the conflict with the federal government and the state's reaffirmation measures |
| October 8, 2026 | Emissions Regulations | U.S. Federal | Tier 4 Review: Proposal to postpone by two years (effective 2029 Model Year) |
| October 7, 2026 | Fuel Economy/CO2 | U.S. Federal | Reflects the SAFE Vehicles Rule III Final Rule. Added information on revisions to the CAFE standards, the treatment of PHEVs, the phased elimination of the inter-manufacturer credit system, revisions to the Part 523 vehicle classification, and the introduction of the LDWF. |
| October 7, 2026 | Fuel Economy/CO2 | India | Addendum to the Summary of AIS-149 Amendment No. 1 Reference document [1] BEE, Office Memorandum revision |
| October 6, 2026 | Fuel Economy/CO2 | China | Addition of CAFC + NEV credit factor |
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