Upon moving to California or acquiring a vehicle (or RV) from out of state, a California buyer (owner) has 30 days to complete California registration including obtaining a California emissions inspection. Since this particular 2003 Coach motor home is a used model, no emission system modification should be required. Used out-of-state vehicles are eligible for California registration as long as their exhaust emissions fall within California's emission cutscores, and their emission systems have not be tampered with. All factory or OEM equipment must be installed.
On average a motor home smog test (smog inspection) in California costs between $70-$100.00 plus $8.25 CA certificate fee.