Nevada's Truckee Meadows Air Plan Gets EPA Rubber Stamp
Published Date: 10/1/2026
Proposed Rule
Summary
The EPA is proposing to approve Nevada’s plan to keep the air clean in Truckee Meadows for the next 10 years by controlling dust and pollution from vehicles. This plan affects people living in Washoe County and helps make sure the air stays safe to breathe through 2040. You can share your thoughts on this plan until November 2, 2026, and it won’t cost taxpayers extra money.
Analyzed Economic Effects
2 provisions identified: 1 benefits, 0 costs, 1 mixed.
EPA proposes to keep Truckee Meadows' air safe
You live in Washoe County (Truckee Meadows). The EPA is proposing to approve Nevada’s "Second 10-Year Maintenance Plan" to keep 24-hour PM10 (inhalable particles) below the PM10 standard of 150 micrograms per cubic meter. The Plan uses a 2017 emissions baseline and projects emissions for 2025, 2030, and 2040 and the EPA concludes the Plan demonstrates continued maintenance of the PM10 standard through 2036.
Wildfire smoke exceedances treated as exceptional events
The Plan and EPA evaluation say exceedances that occurred in the Truckee Meadows during the first maintenance period (including exceedances in 2020–2022 and specific smoke events in 2021 and 2022) were caused by wildfires. For the 2017 baseline the Plan replaces wildfire direct PM10 of 26 lbs/day with an average of typical prior years of 21 lbs/day, and wildfires that are not reasonably controllable can be treated as exceptional events so contingency measures may not be triggered.
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