You will need to exhibit proof of insurance to the treasurer. The proof of insurance must have: the name of the insurance company, the policy number, name of the vehicle owner, the effective and expiration date of the coverage, the year, make and VIN for the vehicle being renewed. You will need proof of insurance for each vehicle. If a trailer does not have its own coverage, the trailer will use the insurance of the vehicle that will be towing the trailer. State law K.S.A 40-3107 requires proof of insurance as a prerequisite to motor vehicle registration.