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The Clean Air Act has substantially improved the lives of millions of Americans. Polluting industries have fought progress every step of the way. To protect your right to breathe, Earthjustice is working to ensure polluting industries don’t stand in the way of clean air protections.

California state law used to exempt farms, dairies, and other agricultural operations from getting air permits for pollution from sources such as agricultural dust, diesel irrigation pumps, and livestock waste. This exemption made compliance with the federal Clean Air Act impossible. Earthjustice sued the EPA for allowing California permitting programs to include the exemption, and…