It's true, there is a difference with California legal and Federal legal emission requirements, and for the most part California is stricter. However, a USED vehicle, such as your 2001 Mazda MPV which has all the Federal required emission components, can pass the California smog inspection without needing any modifications. Any (used) vehicle which is equipped with the necessary Federal Emission Components is eligible for California registration as long as the vehicle's exhaust emissions fall within California's limits.
posted by SmogTips Support