Which vehicles are subject to a TSI smog inspection?

• A. Motorhome under 8,500 GVWR.
• B. Sedan under 4,000 GVWR.
• C. Motorcycle under 600 GVWR.
• D. Pickup under 6,000 GVWR.

Answer: (A)

TSI inspections are a special, narrower form of smog check used for certain light-duty vehicles, not the standard test applied to most passenger cars. The rule at play here is that motorhomes with a GVWR up to 8,500 pounds fall into a category that can require a TSI-style verification of the emissions system during registration or title transfer in California. Motorhomes with GVWR over that threshold are treated differently (often not under this TSI path), and motorcycles are generally exempt from smog testing, while typical passenger cars and light trucks like sedans and pickups usually go through the standard smog process rather than TSI. So a motorhome under 8,500 GVWR is the vehicle type that fits the TSI requirement.