May private rental car insurance be purchased at the car rental agency in lieu of using the American Express (State) Government Card?
No. Private rental car insurance is not a State reimbursable travel expense because of the State’s existing vehicle liability contract with the designated rental car vendor(s). If you are involved in a vehicle accident on official State business, the State of California, your CSU campus, your employing department, and you may be held personally legally and fiscally liable in the incident regardless of the separate rental car insurance purchase.