Non-Owned Auto insurance provides liability protection when an employee drives their personal vehicle for business purposes. If the employee has an accident, their personal auto insurance will pay for physical damage done to the vehicle, but not any damages that an injured party seeks from the company since the accident occurred on company time.
Hired Auto Insurance provides liability protection when you are driving a vehicle that you, or your business, do not own, for example, you rent a car to take out a client.
Non-Owned and Hired auto insurance can be added to your general liability policy in most cases.