Napa Smog Test Only is licensed by the State of Californa to perform and transmit Smog Checks (vehicle emissions tests) as required by the DMV. We are an Official STAR certified Smog Station.

Come to Napa Smog Test Only:

1. Your Vehicle Registration Renewal requires a SMOG CHECK.

2. Your Vehicle Registration Renewal has the wording STAR SMOG CHECK notice.

3. You are buying or selling a car more than four years old.

4. You need to register an out-of-state vehicle in California.

.Results are transmitted electronically for you so there are no papers to file. We aim to provide fast, accurate service with a smile to 100% of our customers.

We are easy to find - 2 blocks from downtown Napa on Main St. at Napa St - kitty corner from St. John's Church 

Cerca del centro de Napa, mitad del camino de Lincoln Ave. and First St., lado de la calle de St. John's la iglesia catolica

Necesita un Smog Check?

Para registration del DMV

Cambio de nombre

De otro estado

El mejor lugar para hacer smog en Napa. Hacemos smog para carros chicos/grandes, trocas, camionetas y autocarvanas. Dirigidos para hacer un "Smog Check" o "STAR Station"

Rapido y amistoso - no cita necesaria. Dura solo 15 o 20 minutos!

Smog Checks for all vehicles:

All cars, vans, SUVs, trucks, RVs - any make or model

Smog Checks for gas-powered vehicles 1976 and newer

Smog Checks for diesel-powered vehicle - NEW requirement for 1998 and newer

Smog Tests for STAR Program directed vehicles

Smog Checks for a change in vehicle ownership

Smog Checks for out-of-state vehicles

Smog Check re-tests after your vehicle has been repaired

 We can process your paperwork and perform the tests and inspections in 15 minutes or less - usually no waiting.

Serving all California residents - everyone is welcome to come in for a smog inspection in the Napa Valley and beyond: Napa, Sonoma, Yountville, St. Helena, American Canyon, Fairfield, Vallejo, Glen Ellen, Santa Rosa, San Francisco. Smog testing done right!