A Smog Test Only can smog any vehicle that requires a smog check. As of January 2013 the Bureau of Automotive started a new program called STAR. Any vehicle that requires a smog check at a Star Station is welcomed at A Smog Test Only. The new STAR program requires our station ""A Smog Test Only"" as well as our smog technicians to perform a non-bias and accurate smog inspection. Each Smog test can take up to 30 minutes to complete.