this is in Cali, I Googled this and the 8 pages I went to it was about 50/50 on yes/no. I have a 2000 Taurus with the check engine light on. A neighbor said he believed I needed to have it pass smog before I could legally sell it. I've never sold a car before that had a check engine lite on. Looking it up, sure enough they require it, I think? If what I read on a few sites is right, I can sell it as non operable and don't need to worry about it. But for this it has to be non operable, which it isn't. I'm not trying to break any laws but I don't want to pay to have the repairs done. I just want to sell it "as-is" But it looks like even selling it as-is doesn't mean much when it comes to the laws out here. I am telling everyone who's inquiring that the check engine light is on so it needs works. I lowered the asking price accordingly. I don't really have the money to have the work done, but I need to get rid of it asap. I can't call the DMV today because they're closed on every 3rd Wednesday of the month because of this stupid Cali budget crisis, or I'd be on the phone with them right now.