Powers of Attorney in the United States are subject to the laws of individual states, so the document changes to conform to your particular state s laws. There is no overall federal law concerning Powers of Attorney, but there is a model Uniform Power of Attorney Act which many states have adopted, fully or partially.
A Power of Attorney is also not like a bilateral agreement, it is more of a unilateral description of what authority is permitted by the principal.
This document can be used to handle a variety of situations, and can be customized based on your need. You can grant a POA related to different areas of your life, with varying degrees of power for the agent, and for any timeframe that you desire.
This document can be used if someone is looking to appoint an agent to make financial decisions for them right now, or if someone would like to set up a document that is ready to go in case of incapacity. In this document, the principal or their representative will be able to enter pertinent identifying details about the parties. The person filling out the document will also be asked a series of questions to define exactly what types of authority the principal wants to give the agent.