The four types of power of attorney are limited, general, durable and springing durable. Limited and general POAs end when the principal becomes incapacitated, so they’re not often used by older adults when planning for the end of life. A durable POA lasts even after a person becomes incapacitated, so is more commonly used by seniors. A springing durable POA is a type of durable POA that only comes into effect when certain criteria are met, usually when the principal becomes incapacitated.