The details of Ricardo EMLEG |
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EMLEG (Emissions Legislation) is a comprehensive summary of worldwide exhaust emissions regulations provided by Ricardo. |
Emissions & CO2
Worldwide gas emissions and fuel consumption regulations (provided by: Ricardo Emleg)
WLTP (Worldwide Harmonized Light vehicles Test Procedures) |
Worldwide Emission & Fuel Economy/CO2 Regulation Timeline (Passenger Cars & Light Duty Trucks) |
Latest Update
Date | Regulation | Region | Updated Summaries |
2 May 2024 | Fuel Economy/CO2 | USA (California State) | The history of Clean Air Act preemption waiver, and the status of LEV III GHG emission standards are re-affirmed. |
23 April 2024 | Emission Standards | India | The January 2024 amendment modified the standards regarding applicability and test fuel requirements. |
15 April 2024 | Fuel Economy/CO2 | USA Federal | The EPA published the final regulation, the Phase 3 heavy duty GHG emissions standards. |
22 February 2024 | Emission Standards | Thailand | Light duty vehicles with CI engine need to comply with Euro 5. For gasoline LDV, timeline to implement Euro 5 reported. |
15 February 2024 | Fuel Economy/CO2 | EU | Values specified in Regulations 2023/1634 and 2023/2502 added. Also derogation for small volume manufacturer detailed. |
11 January 2024 | Emission Standards | Brazil | The calculation of fleet average emissions and the trading of credits are detailed. |
6 December 2023 | Emission Standards | California State | The section of CARB Zero Emission Vehicle programme is added. |
4 December 2023 | Emission Standards | India | The updating in November 2023 - confirmation and minor additions / deletions of information/ |
20 October 2023 | Fuel Economy/CO2 | EU | Update issued in February 2023, proposing amendments for Heavy duty vehicles: 1. Applicability expanded. 2. %-based CO2 emission reduction target after 2030 added. 3. Zero-emission vehicle target for urban buses added. |
18 October 2023 | Fuel Economy/CO2 | USA Federal | Proposed, updated GHG (greenhouse gas) emissions standards for light duty vehicles have been published by the EPA. |
16 September 2023 | Emission Standards | USA Federal | The EPA published a proposal containing updated emissions requirements for light duty and medium duty vehicles in May 2023. |
22 June 2023 | Emission Standards | China Heavy Duty Vehicles | In May 2023, the Ministry of Environment published a statement confirming that all heavy duty diesel vehicles produced, sold and imported in China will also have to comply with the 6b requirements, from 1 July 2023. |
21 June 2023 | Emission Standards | China | In May 2023, the Ministry of Environment published a statement to confirm that all light duty vehicles produced, sold and imported in China from 1 July 2023 will have to comply with the China 6b requirements. |
21 June 2023 | Fuel Economy/CO2 | EU | 1. EC will define a methodology to calculate Lifecycle CO2 emission by End/2025. 2. Regulation 2023/851 was published in April 2023. 3. Reduction rates of EU-fleetwide CO2 were changed. 4. Definition of ZLEV factors were changed. 5. Treatment of trailers (Cat. O3 and O4) was deteiled in Regulation 2022/1362. |
25 May 2023 | Emission Standards | EU | Following the publication & implementation of regulation 2023/443, regulation 2017/1151 is amended, which influences many standards and procedures. |