It really depends on what state you live in, you can call a local agent and they can tell you what the minimum requirements are.
All Drivers
by all drivers
The Law is that All Drivers on public roads maintain proof of financial responsibility regardless of age.
When required to maintain proof of financial responsibility, this proof must remain on file for two years.
Rule of thumb - Insurance follows the car as long as it is used with permission of the owner. If you are at fault, you might get reported to your state DMV for not paying a debt and will not be allowed to renew your registration or Driver's license until the debt is satisfied. You generally can not pass yearly inspection of vehicle without insurance (proof of financial responsibility).
Every time you drive
notarized letter from banker
Not is the state of Kentucky. Your state may be different but more than likely not. Call your local DMV to find out.
You are required to to show proof of financial responsibility for the death, injury, or property damage they may cause while operating a motor vehicle.
Proof of financial responsibility may be asked in conjunction with: Borrowing money, Sponsoring an immigrant into the United States, Renting a house or apartment, Applying for a driver's license, Admission to a College. Generally, it is called "Proof of Responsibility" which includes the person's personal finances and any insurance they may have obtained as coverage for financial matters.
For two years
For two years