EPA Proposed Amendments to MY 2027+ Heavy-Duty NOx Program
July 20, 2026
An overview of EPA’s proposed changes to the Heavy-Duty Low NOx Rule starting MY 2027
An overview of EPA’s proposed changes to the Heavy-Duty Low NOx Rule starting MY 2027
An overview of CARBs proposed light- and medium duty “Drive Forward” proposal for MY 2031+ vehicles
The U.S. EPA has proposed a two-year delay for the introduction of the previously announced Tier 4 emission standards for light- and medium-duty vehicles.
A brief summary of recent EPA changes to DEF-related failures.
“[Converting to this fuel] was one of the single-best decisions we as an organization have made”. Guess the fuel ? Probably not what you typically think of for on-road mobility..
A summary of the “COMVEC 2025” conference held in Schaumburg.
The U.S. EPA has proposed to revoke its 2009 GHG Endangerment Finding, which underpins the regulation of tailpipe (GHG) emissions from cars and trucks.
A new in-use emissions study on heavy-duty vehicles shows that both conventional diesel and alternative fuel vehicles certified to the 0.02 g/bhp-h standard can meet future EPA NOx limits even in day-to-day operation.
A summary of the “SAE WCX 2025” conference held in Detroit.
A summary of the SAE 2025 OBD Conference held in Porto, Portugal, provided by MAHLE Powertrain.