It must come from your insurance agent or insurance company. Proof of insurance is the legal documentation required by your STCU loan agreement to show that you have fully insured your vehicle against theft or damage. ( This is not the same thing as the little proof of insurance card drivers are required to show state patrol or other authorities if stopped.) Congratulations on your new wheels! Thanks for choosing STCU for your financing.Īs the vehicle owner, it is your responsibility to provide ' proof of insurance' to the credit union.