Signing Requirements
The principal is the only person required to sign the advance directive, but it is generally recommended that the form also be witnessed or notarized.[1]
Registration
The principal can use the Idaho Healthcare Directive Registry’s website to create and upload their advance directive to the registry. Registering an Idaho advance directive is entirely voluntary. The principal can also mail their document to the address below:[2]
Idaho Healthcare Directive Registry
450 W State Street, 4th Floor
PO Box 83720
Boise ID 83720-0036
450 W State Street, 4th Floor
PO Box 83720
Boise ID 83720-0036
Revocation
The principal can revoke their advance directive at any time through an oral or written revocation, or through any other act that communicates their intent to revoke.[3]
State Definition
“Advance care planning document,” “advance directive,” “directive,” or “health care directive” means a document that substantially meets the requirements of section 39-4510(1), Idaho Code; is a POST form; or is another document that represents a competent person’s authentic expression of such person’s wishes concerning health care services.[4]
Statutory Form
Although there is not a required form that must be used, an Idaho advance directive must contain specific information, including the name, date of birth, telephone number, and address of the principal, in order to be considered valid.[1]




