Remove Clean Air Act Remove Ozone Remove Particle Pollution
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Why UCS Supporters Are Pressing EPA to Let California Enforce Its Truck Pollution Rules

Union of Concerned Scientists

California has a longstanding leadership role on transportation pollution, and the Clean Air Act grants the state the right to set strong vehicle emissions standards. Truck pollution is killing us, the planet, and it stinks. We in Colorado have many days of problematic ozone. UCS member, Oregon. Washington.