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WELCOME!

D1 Smog is Sonoma County's newest Smog Inspection Station.

It is located in the beautiful town of Sebastopol, on Highway 12, right next to Grange Hall, same building of Pauline's Automotive.

It is family owned and operated, serving the community by providing friendly, honest, timely smog checks in accordance with the State of California's Emissions standards.

Our qualified and certified technician is happy to help you.

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