I have this test only station near me that does a fantastic job. They work with you if you have any small problems, which really helped me. Gotta love that

They charge $55 and also give a discount to us repeat customers.

Two tips for anyone.....

If you find a smog station that works for you and with you...keep em handy, and send your friends there too.

And....Bring a new gas cap with you...unopened. Your cap could look perfect, and still fail. If you do not need the new one, put it in your spare parts box, and bring it again in 2 years. I had two different caps fail.