Steps consumers can take to participate in the new program are:

Step 1: Go to the official government website http://cars.gov for the CARS program and look-up the COMBINED mpg rating for your car. If your car is not listed, contact the National Highway Traffic Safety Administration (NHTSA.)

If your car is rated over 18 miles per gallon on the official CARS website, you DO NOT qualify. This rating is not your actual mpg but a standard rating system for the program. There are no exceptions for cars at this time that are rated 19 mpg or higher.

Step 2: If your car is rated as getting a combined mpg of 18 or less, you cleared an important first step. Now you have to make sure your car meets the other requirements for the CARS program which includes ownership, drive-ability, insurance and age. Go back to cars.gov and click on the "CARS FAQ" button. You need to read the latest rules for your trade-in. If your cars qualified based on the latest information provided on the FAQ page, go to step 3.If you have unanswered questions, contact the NHTSA.

Step 3: If your car has passed steps one and two, you can use your car as a trade in to purchase a new fuel efficient car. You DO NOT need a voucher in advance of visiting your local dealer. There is no consumer pre-registration needed. Your local new car dealer will handle all the paperwork starting late July.

Contact a local dealer as soon as the CARS program officially is started. It is estimated that the program will start in late July. When you purchase a new car make sure you inquire about additional manufacturer rebates and incentives.

Other considerations from the CARS.gov site:

· The vehicle must be less than 25 years old - No digging up a rust-beaten car from the 70's...
· You must purchase or lease a new vehicle - This doesn't qualify for used vehicles. Leases must be for at least 5 years.
· For the most part, trade-ins must get 18 miles per gallon or less (when they were new).
· Trade-in cars must have been registered and insured for at least a year prior - No buying a clunker cheap so you can trade it in. This also means you can't trade in a car sitting in your driveway that hasn't been registered.
· No voucher needed, dealer will apply the credit - You have to find a registered dealer but after that the dealer takes care of the credit.
· CARS runs until November 1st or when the funds run out - One billion has been set aside for the program so there is an aspect of first come first served.
· The car you're trading in must be destroyed/scrapped - Remember the point is to get the inefficient cars off the road. The trade-in value will most likely not exceed the scrap value. A dealer will have to provide you with an estimate of it's scrap-value.
· The car must be in drivable condition - It has to actually HAVE mileage in other words. No towing in a car that doesn't work.
· The new car must not exceed $45,000.
· You can find your car's fuel economy at FuelEconomy.gov.