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.
Summary of EPA MY2027 heavy-duty engine standards
The US EPA has finalized its standards for heavy duty engines starting model years 2027 and beyond. Here is a summary of the standards and a high-level comparison with California’s low NOx rule published earlier.
Gasoline engine new developments in 2022
Yes, OEMs continued developments of new gasoline engines in 2022. Here’s a short write-up of key technologies added covering a range of 1.5L to 3L engines.