Surprisingly, the SF Bay Area is not one of the “Enhanced Areas” for the California automobile smog check program. The L.A. area is, which is understandable, and there are these little spots in areas that I’m not as familiar with. I guess I should count myself lucky that I’m not living in one of the smoggiest areas of the state, but there are days when I wonder! The enhanced test includes a single-axle dynamometer (like a treadmill for cars), which can’t be used with all wheel drive cars. I have an AWD Subaru, so I need to pay attention to these things in case I get a clueless technician, but my zip code is still idle test only.