In United State there are a few tips you can do to ensure the best possible auto insurance rate. Here are some tips:

1. Information must valid:  name and age, vehicle information, vehicle is properly classified and proper address.
2. Take a DMV approved auto accident prevention course.  Your insurance company must apply a credit to your premiums for three years if you take and complete the course.
3. Automatic seatbelts and airbags will earn you a credit on your medical payments and no fault coverage.
4. Anti lock brakes is a biggie and earns a discount on most of your policy coverage.
5. Daytime running lamps will earn a further discount on your liability, collision, no fault and medical payments coverage.
6. Join the Combat Auto Theft Program (CAT).  Some companies will offer a discount for participating in CAT.
7. Earn a Careful Driver discount for drivers without an accident for a given period of time.
8. If you have more than one policy with the same insurer, most insurance companies will offer a discount.
9. Senior Citizens may be offered a discount because they’re generally on the road less often than younger drivers.
10. Increase your deductibles. Higher deductibles lower your premium
11. Drop physical damage coverage on old vehicles.
12. Communicate with your insurance agent. They are a great resource to save money.