Regulations

US EPA MY 2027-2032 Light-Duty CO2 Standards

A preview to a longer summary to come on the final EPA multi-pollutant rule on greenhouse gas and criteria pollutant emission limits for light- and medium-duty vehicles

Reference

EPA Final Rule

Multi-Pollutant Emissions Standards for Model Years 2027 and Later Light-Duty and
Medium-Duty Vehicles

Published March 2024

This is a preview to a longer summary that we will publish for the 1,181-page rule finalized by the EPA, limiting greenhouse gas and criteria pollutant emissions from light- and medium-duty vehicles. If you are interested in future updates, sign up to the “5-min Monthly” below. 

 

As in the past, the EPA rule establishes separate CO2 limits for passenger cars and light-duty trucks, as shown in the figure below. OEMs have to meet the fleet averaged requirements based on footprint curves for their vehicles sold. 

 

The rule will require a fleet averaged 50% reduction in CO2 emissions for light-duty vehicles, over MY 2027 – 2032 finalized).

 

To put this in context, a comparison is also shown with the standards in other major markets – note that the units are converted to g/km for ease of comparison, and that the years are different for each region.

Much more to come – the projected electrification, treatment of plug-in hybrids, criteria pollutant limits (NOX, PM). If interested in further updates, sign-up below.

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