20 décembre 2022
Transport international

Truck Fleets Warn of High Cost of U.S. EPA’s Pending New Emissions Rule

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The Biden administration will soon issue new tailpipe emissions standards for trucks that most truckers – from single owner-operators to owners of large fleets – warn could place heavy cost burdens onto the U.S. economy as a recession already looms.

As proposed by the U.S. Environmental Protection Agency in March, the new nitrous oxide (NOx) emissions standards for heavy-duty truck engines will be implemented through either a two- or one-step process.

The two-step process, Option 1, would set a stringency increase first in model year (MY) 2027 and a second increase in MY 2031. The one-step process, Option 2, would immediately jump to full implementation of a NOx standard in model year 2027.

The 2031 standards under Option 1 would lower truck emissions by 90% compared with current norms, and EPA estimates that NOx emissions from the total fleet of heavy-duty trucks on the road in 2045 would decrease by as much as 60%. Option 2 would achieve less overall NOx emissions reductions than Option 1, according to EPA.

In addition, EPA is proposing longer emissions warranty periods that would increase the number of useful life miles covered under warranty, as well as making improvements to engine serviceability.

Read more in an article from FreightWaves.

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