EPAFinal Rule

Air Quality State Implementation Plans; Approvals and Promulgations: Montana; Missoula, MT Oxygenated Fuels Program Removal, Carbon Monoxide, Limited Maintenance Plan

EnvironmentTransportationEnergy

Summary

The EPA is allowing Montana to stop requiring special oxygenated fuels in Missoula during winter months, since the area now meets clean air standards for carbon monoxide pollution. This change simplifies fuel requirements for gas stations and drivers in the region while maintaining good air quality.

Key Points

  • 1Missoula, Montana no longer needs to use special oxygenated gasoline blends in winter to reduce carbon monoxide pollution
  • 2The city achieved and maintained clean air quality standards, so the stricter fuel requirement is no longer necessary
  • 3Gas stations will have simpler fuel supply chains and potentially lower costs without needing to stock special winter fuel blends
  • 4This is a limited maintenance plan, meaning the EPA will monitor air quality for the next 10 years to ensure pollution stays at acceptable levels
  • 5If air quality worsens in the future, the oxygenated fuel requirement could be brought back

Impact Assessment

If you are a gas station operator or consumer in Missoula, this means you no longer need to stock or purchase more expensive oxygenated fuel blends during winter months, reducing costs and simplifying operations.

Impact Level
Routine
Geographic Scope

State-specific

Compliance Cost

Minimal

Who is Affected
Small BusinessesConsumersEnergy Companies

Key Dates

Published

January 16, 2025

Regulatory Connections

Amends CFR Sections
40 CFR Part 51

This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.