Petition to EPA for Rulemaking to Adopt Revised NOx Exhaust Emission Standards for On-Highway Heavy-Duty Trucks and Engines

The South Coast Air Quality Management District (SCAQMD) and the undersigned copetitioners hereby petition the Administrator of the Environmental Protection Agency (EPA) to undertake a rulemaking to revise the on-highway heavy-duty engine exhaust emission standards for oxides of nitrogen from 0.2 grams per brake horsepower-hour (g/bhphr) to 0.02 g/bhp-hr.

Help with accessibility: otaq@epa.gov

• Petition to EPA for Rulemaking to Revise NOx Exhaust Emission Standards for On-Highway Heavy-Duty Trucks and Engines (pdf) (1.12 MB)
• ATTACHMENTS to Petition to EPA for Rulemaking to Revise the Exhaust Emission Standards for On-Highway Heavy-Duty Trucks and Engines (pdf) (16.8 MB)
• ADDITIONAL PETITIONERS to Petition to EPA for Rulemaking to Revise Exhaust Emission Standards for On-Highway Heavy-Duty Trucks and Engines (pdf) (792.62 KB, 2016)