Comment submitted by American Fuel & Petrochemical Manufacturers (AFPM)
AnonymousSupportTrade association
Summary: The American Fuel & Petrochemical Manufacturers (AFPM) supports the EPA's proposal to delay the Tier 4 phase-in for light- and medium-duty vehicles through model years 2027 and 2028. They argue that the original schedule was based on inaccurate assumptions regarding battery-electric vehicle penetration and that the delay is necessary to ensure technological feasibility and adequate lead time for manufacturers.
AFPM Comments on Tier 4 Criteria Pollutant Standards, Part 1.