Petition Requesting that EPA Adopt New National Standards for On-Highway Heavy-Duty Trucks and Locomotives under Federal Jurisdiction

Petitioners call on the Administrator of EPA to undertake two rulemakings to reduce NOx and PM_2.5 emissions:

1. revise the on-highway heavy-duty engine exhaust emissions standards for oxides of nitrogen, and
2. develop in-use locomotive regulations, Tier 5 standards for newly manufactured locomotives, and more stringent standards for remanufactured locomotives.

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• San Joaquin Valley Petition for HD and Locomotive (pdf) (3.31 MB)
• ADDITIONAL PETITIONER to Petition to EPA for Rulemaking to Adopt New National Standards for On-Highway Heavy-Duty Trucks and Locomotives (pdf) (303.78 KB, December 2016)