Idaho Code § 15-15-103: VALIDITY OF SUBSTITUTE DECISION-MAKING DOCUMENT.

(1) A substitute decision-making document for property executed outside this state is valid in this state if, when the document was executed, the execution complied with the law of the jurisdiction indicated in the document or, if no jurisdiction is indicated, the law of the jurisdiction in which the document was executed.

(2) A substitute decision-making document for health care or personal care executed outside this state is valid in this state if, when the document was executed, the execution complied with:

(a) The law of the jurisdiction indicated in the document or, if no jurisdiction is indicated, the law of the jurisdiction in which the document was executed; or

(b) The law of this state other than this chapter.

(3) Except as otherwise provided by law of this state other than this chapter, a photocopy or electronically transmitted copy of an original substitute decision-making document has the same effect as the original.