I live in California. I have a number of vehicles (can't quite count 'em with my fingers) registered and insured. All but one of them are smog-exempt because of their age. The one vehicle that isn't exempt, well, I inherited it. In California, anything 1975 and older is exempt...and diesels 1997 and older are exempt from biannual smog checks. Two my vehicles are 1988 and 1989 Chummins (a V30 and a R30), respectively. These trucks originally both had 454s up front, and the VIN codes reflect that. Both vehicles had had the "statement of facts" form filled out for DMV long before I owned them. The titles have a "D" on them where the "G" used to be. I've never had to smog check these trucks. Within the last month I received the registration renewal paperwork for both of them, and both require a smog check. The imagination runneth over with all sorts of horrible scenarios playing out in my mind. I'm gonna have to call DMV tomorrow to see what's up. My hope is that they screwed up, or that they reset the mode of power based on the VIN code and will simply need a new statement of facts. I worry that I'll have to take them to the smog referee, wherever that is, or whether they are even open with Covid-19 and all. I also worry that they won't let me call these diesels if the VIN code says otherwise. Anyone else going through this?