(a) A power of attorney executed in this state on or after the effective date of this act is valid if its execution complies with 39B-1-105 of this code.
(b) A power of attorney executed in this state before the effective date of this act is valid if its execution complied with the law of this state that existed at the time of execution.
(c) A power of attorney executed other than in this state is valid in this state if, when the power of attorney was executed, the execution complied with:
(1) The law of the jurisdiction that determines the meaning and effect of the power of attorney pursuant to 39B-1-107 of this code; or