This entry may only be used when the vehicle is not originally equipped with the particular emissions control component being inspected, or when a particular test cannot be performed due to vehicle incompatibility with inspection equipment.

• A. CARB aftermarket parts listings
• B. Not Applicable
• C. Tampered
• D. Modified

Answer: (B)

Not Applicable is used when the item being checked doesn’t apply to the vehicle as it’s configured. If the vehicle didn’t originally come with the emissions control component being inspected, there’s nothing to inspect or test, or if the test can’t be performed because the vehicle’s setup isn’t compatible with the inspection equipment, that item is simply not applicable. This keeps the record from implying that something was added, removed, or modified. The other options would indicate aftermarket parts, tampering, or modification, which aren’t the situations described here.