Cummins latest 15L engine capable of meeting MY2027 EPA regulations

Cummins has announced the next generation X15 diesel engine with improved performance and meeting the MY 2027 EPA/CARB Low NOx regulations.

TMC 2024 in Pictures

A visual summary of the TMC Annual Meeting and Transportation Technology Exhibition, held in New Orleans, March 2024.

Summary of Oct 2023 CARB workshop for Tier 5 non-road standards

California is looking to reduce NOx emissions from non-road engines by 90% and enforce particulate filters on all engines. Here is a summary of the latest workshop to get stakeholder feedback on Tier 5 standards.

CARB proposes to amend MY 2024 low NOx standard

Given the lack of MY 2024 compliant new engine introductions, California has proposed an amendment to its low NOx omnibus, providing more flexibility for legacy engines.

CARB deal with OEM on low NOx, electrification – and H2 ICE ?

California and Truck & Engine Manufacturers have reached a deal on low NOx and electrification targets in the state. This paves the way for more regulatory certainty but the challenges ahead are not diminished.

Technology Deepdive : Opposed piston engines

Opposed piston engines are being developed as a tool to reduce CO2 and NOx emissions from heavy-duty trucks. Here’s a deeper look into this technology and recent test results.

Characterizing the in-use heavy-duty vehicle fleet

Heavy-duty vehicles cover a very wide range of applications and typical driving profiles. A one-size-fits-all approach is unlikely to work for reaching zero tailpipe emissions from this sector. Here’s a summary of the application diversity from a US viewpoint.

Summary of CARB thinking on Non-road Tier 5 regulations

Here’s a summary of California’s latest thinking on “Tier 5” tailpipe NOx emission standards for off-road construction and farming equipment.

Meeting the HD Low NOx standards – tech update part 1

This is part 1 of 2 technology updates on pathways to meet the low NOx standards for heavy-duty vehicles set by California and being considered by the EPA for nationwide implementation starting model year 2027.

Summary of EPA proposal : Heavy-Duty Clean Trucks Plan

Here’s a summary of EPA’s proposed changes to tailpipe NOx and CO2 emission standards for HD trucks in the US beyond 2027.