This template gives you everything you need for a professional, customizable and legally binding Power Of Attorney California.
California has specific forms and detailed requirements. You can't assume your agent has certain powers. Financial matters especially require you to spell out exactly what they can do.
Usually just notarization for financial powers. If you can't appear before a notary, California allows two witnesses instead. Healthcare directives have different witness requirements.
Generally accepted, but other states might not recognize certain provisions or might have different requirements. If you spend time in multiple states, consider having compliant documents for each.