Final answer:
An insurance company appointment typically remains in force until revoked by the insurance company or the insurance department, though terms can vary by state.
Step-by-step explanation:
An insurance company appointment is an authorization granted by an insurance company to an agent, permitting them to act on behalf of the company. The duration that such an appointment remains in force can vary depending on the laws of the state where the insurance company operates. However, generally speaking, such an appointment remains in force until it is revoked by either the insurance company or the insurance department. In some cases, laws or regulations may specify a fixed term, but this is not the typical arrangement. It's always important for insurance agents and companies to check the specific laws and regulations that apply to their situation.