DMV sends motorists this notice when it cannot locate a Smog Check certificate for a vehicle. If you receive one of these notices, you may do one of two things: (1) If you have not yet completed a Smog Check, do so. Once DMV receives an electronic certificate of compliance, the DMV database will be updated and your registration and license plate sticker will be issued. No further action is required on your part. (2) If you have already successfully completed a Smog Check, please allow 30 days to receive your registration and sticker. If, after 30 days, you still have not received your registration and license plate sticker, contact DMV for further assistance.