What vehicles are subject to the California emissions standards? 
Unless it is exempt , your vehicle must comply with the California emissions standard if it has less than 7,500 miles on the odometer and is a model year of 1996 or newer passenger vehicle or light - duty truck that has a gross vehicle weight rating GVWR of 6,000 lbs. or less a model year 2000 or newer light - duty truck that has a GVWR of 8,500 lbs. or less a model year 2004 or newer medium duty vehicle that has a gross vehicle weight rating GVWR of 14,000 lbs. or less that has a gross vehicle weight rating GVWR over 14,000 lbs a model year 2005 or newer heavy - duty otto - cycle or diesel vehicle 

How can I find out if my vehicle meets the California emissions standard? 
To determine if a vehicle meets the California emissions standard , look for these words or similar language on the Manufacturer's Certificate of Origin MCO and the emissions label under the hood : " California - Only Vehicle : This vehicle conforms to U.S. EPA and California regulations applicable to the vehicle model year model - year new motor vehicles introduced into commerce only for sale in California. " " 50-State Vehicle : This vehicle conforms to U.S. EPA and California regulations applicable to the vehicle model year model - year new motor vehicles. " " Federal Vehicle certified for Sale in California : This vehicle conforms to U.S. EPA regulations applicable to the vehicle model year model - year new motor vehicles, and is certified for sale in California. " 

My vehicle complies with the California emissions standard but this is not indicated on the MCO, or I don't have the MCO. What can I do? 
If your vehicle complies with the California emissions standard, but the MCO does not indicate compliance or you do not have an Manufacturer's Certificate of Origin MCO , you or the automobile dealer can certify compliance on a' Certificate of Emissions Compliance or Exemption' form MV-74. If your vehicle is exempt from the Cal

user: Hello! My vehicle meets the California emissions standard, but this is not indicated in the MCO, or I do not have the MCO. What I can do?

assistant: you do not have a Manufacturer's Certificate of Origin MCO?

user: yes i don't have that certificate

assistant: you or the car dealer can certify compliance on a 'Certificate of Compliance or emissions exemption' form MV-74

user: And what happens if the vehicle is exempt from the California emissions standard?

assistant: you or the car dealer can complete form MV-74 to certify the exemption

user: How can I find out if my vehicle meets the California emissions standard?

assistant: Look for these words or similar language on the MCO Manufacturer's Certificate of Origin and the emissions label under the hood:
       "California Only Vehicle: This vehicle complies with US and California EPA regulations applicable to vehicle model year - new motor vehicles commercially introduced for sale in California only.

user: What vehicles are subject to California emission standards?

assistant: Your vehicle must meet the California emissions standard if it has less than 7,500 miles on the odometer and is
   a 1996 model year or a newer light duty passenger or truck vehicle that has a GVWR gross vehicle weight rating of 6,000 lbs. or less