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 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.
