Uninsured/Underinsured Motorist Coverage (UM/UIM) provides coverage in the event that another party is found legally liable for your bodily injury and/or property damage but they either do not have Liability insurance or enough Liability insurance. Coverage is also provided for hit and run incidents.
UM/UIM does have deductibles, $100 if the other party can be identified, and $300 if the other party cannot be identified. Coverage is only up the limits selected on the policy. This coverage is required to be offered, but can be rejected by signing a form.