Fortunately, the rules mentioned in the article apply only to Sacramento County. Not ALL California. Where I live, there are related rules also. You can do minor work like oil changes in your driveway. Major jobs like engine removal, have to be done inside an enclosed garage. For the Haters out there, I'm sure if you check your City or County rules, you'll find similar laws in place. Not all municipalities will enforce the laws equally, but the laws are there. Show me a place that doesn't have similar laws, and I'll show you a place that doesn't care about property values.