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Emissions

Sep 2025

The Environmental Protection Agency (EPA) Issue Proposal to Repeal 2009 Endangerment Findings and Greenhouse Gas Vehicle Standards

The Environmental Protection Agency (EPA) announced in the Federal Register on August 1, 2025, a proposal to repeal the Section 209 Endangerment Findings and the Greenhouse Gas (GHG) Emission Standards for light, medium, and heavy-duty vehicles and engines. According to the EPA, this proposal reflects the most accurate interpretation of the Clean Air Act (CAA), falls within the Agency’s legal authority, aligns with its scientific research and addresses global climate change alongside the associated risks to public health and welfare. Public comments must be submitted by September 15, 2025.

May 2025

Draft Euro 7 Emissions Implementing Regulations Published

Following the publication of Regulation (EU) 2024/1257, which specifies the Euro 7 emissions requirements, the European Commission began drafting the numerous Implementing Regulations required to provide the detailed test procedures, testing methodologies, administrative procedures, etc. to allow the new Euro 7 emissions requirements to be fully implemented. On April 15, 2025, draft versions of the first two of these 'Euro 7' Implementing Regulations were published by the European Commission for public comment. The first of these draft Implementing Regulations specifies the rules, procedures and testing methodologies for the exhaust and evaporative emissions type approval of M1 and N1 category vehicles. The second draft Implementing Regulation specifies the detailed requirements for the onboard fuel consumption measuring (OBFCM) devices, onboard monitoring (OBM) systems, driver warning systems, inducement methods and environmental vehicle passports (EVP) of M1 and N1 category vehicles.

Apr 2025

Amendments to EU Regulation on Heavy Vehicle CO2 Emissions Determination Published

On February 20, 2025, the European Commission published an EU Amending Regulation, (EU) 2025/258, which introduces amendments to the EU Regulation on the determination of the CO2 emissions and fuel consumption of medium and heavy trucks and heavy buses; (EU) 2017/2400. The amendments introduced by (EU) 2025/258 are predominantly to cover new technologies that are being developed and deployed to improve the CO2 emissions performance and fuel consumption of heavy duty vehicles, such as hydrogen fuelled vehicles, vehicles fitted with high efficiency 'wheel ends', vehicles equipped with multiple drivetrains which are capable of operating independently and vehicles which are capable of recharging whilst they are in motion.