How to Create a Medical Power of Attorney in Arizona

To create a medical power of attorney in Arizona, you write a document that names another adult to make health care decisions for you, state clearly that you intend it as a health care power of attorney, date and sign it yourself, and have it either notarized or witnessed by at least one qualifying adult. Those four steps come straight from Arizona Revised Statutes 36-3221, and a document that skips any of them can be challenged when you actually need it to work.¹

The Arizona Attorney General’s office publishes a free health care power of attorney form that already meets the statutory requirements.² You are not required to use it, but starting there is the simplest way to avoid missing a piece.

The Four Legal Requirements

Arizona law sets out four things your health care power of attorney must satisfy to be effective:¹

It has to be in writing. An oral arrangement does not count, no matter how clear.
The language has to make plain that you are creating a health care power of attorney. Casual phrasing like “I want my daughter to handle my medical stuff” will not do the job.
You must date and sign it (or make your mark), confirming that you understand and agree to what you are granting.
It must be notarized, or witnessed in writing by at least one adult. Whoever notarizes or witnesses must affirm they were present when you signed and that you appeared to be of sound mind and free from pressure or coercion.

These four elements are the whole legal test. Get them right and you have a valid document.

Choosing Your Agent

Any adult can serve as your health care agent. The statute also allows you to name more than one person, which is worth doing because your first choice may be unreachable or unable to serve when a crisis hits. Many people list a primary agent along with one or two alternates.¹

Arizona has one narrow disqualification. Anyone whose fiduciary license has been suspended or revoked under ARS 14-5651 cannot serve as your agent unless they are related to you by blood, adoption, or marriage. The bar lifts if their license is later reinstated in good standing.¹ This rule mostly affects disciplined professional fiduciaries, not friends or family.

Legal eligibility is only the floor. The person you name should know your values, be able to stay calm in a hospital setting, and be willing to speak up when doctors or relatives push back. Have the conversation with them before you sign, and be specific. That is where a health care power of attorney either works or falls apart.

Who Cannot Witness or Notarize It

Whoever notarizes or witnesses your document acts as an impartial check on the signing, so Arizona rules out people with a stake in it:¹

The person you have named as your health care agent cannot also witness or notarize the same document.
Anyone directly involved in providing your health care at the time you sign cannot serve as your witness or notary.

An extra restriction applies when you rely on a single witness rather than a notary. That sole witness cannot be related to you by blood, marriage, or adoption, and cannot be someone who stands to inherit from your estate at the time of signing.¹ The law is stricter here because a single witness carries the full weight of authenticating the document. A trusted neighbor, coworker, or friend who is not in your will is usually a safe pick. Using a notary sidesteps the relative-and-heir issue entirely.

If You Cannot Physically Sign

Not being able to hold a pen does not stop you from creating a valid health care power of attorney. If you cannot sign or make a mark, the notary or each witness must verify on the document that you communicated directly to them that the power of attorney reflects your wishes and that you intended to adopt it at that moment.¹

Arizona’s general notary statute offers another path: you can direct another person (someone other than the notary) to sign your name for you, and the notary adds a notation identifying who signed at your direction.³ Either way, you personally communicate your intent, and the notary or witness still has to confirm you appeared of sound mind and free from pressure.

Optional Pieces You Can Add

The same document can also authorize your agent to handle funeral and body-disposition arrangements after your death.¹ Including that authority is optional, not required.

A health care power of attorney is not the same as a living will, which records your specific treatment preferences for end-of-life situations rather than naming a decision-maker. Arizona lets you combine a living will with your health care power of attorney in one document, or keep them separate. If they are separate, the living will should be attached to the original power of attorney and to every copy.⁴

A health care power of attorney is also separate from a financial power of attorney, which covers money and property. Naming the same person for both is common, but each document has its own signing rules.

One more piece worth considering: HIPAA access. Naming someone as your agent does not automatically let them see your medical records before the power of attorney takes effect. Under federal privacy rules, a covered provider must treat a person with legal authority to make your health care decisions as your personal representative, but that authority typically kicks in only once your agent’s decision-making power is active.⁵ If you want your agent to have access to your records before that point, sign a separate HIPAA authorization. Most hospitals and clinics keep their own forms on hand.

When the Document Takes Effect

Signing does not hand your agent the keys. Most Arizona health care powers of attorney are “springing,” meaning the agent’s authority activates only after a physician examines you and certifies in writing that you can no longer make or communicate your own medical decisions. Until then, you decide for yourself. If your condition improves and you regain decision-making capacity, your own authority resumes.

When your agent does step in, Arizona law gives them a clear order of operations. Follow your wishes as expressed in the document or any attached living will first. If the document is silent on the situation, rely on what they know of your personal values. Only if neither source gives an answer may the agent decide based on their own good-faith judgment of your best interest.⁶ That hierarchy is another reason to have the conversation with your agent in advance; the more they know about how you think, the less often they will have to fall back on guesswork.

Storing, Sharing, and Registering the Document

A perfectly drafted document that no one can find during an emergency does not help you. Once you sign, give copies to your agent, your alternates, your primary care doctor, and close family members who may show up at a hospital. Keep the original somewhere accessible, not locked in a bank box.

Arizona also maintains a statewide advance directive registry, which has been transferred from the Secretary of State’s office to AzHDR, Arizona’s Health Information Exchange. Registering your health care power of attorney allows hospitals and providers to locate it electronically if you arrive at an ER and cannot communicate. Registration is optional and does not affect your document’s legal validity. If you register, still distribute paper copies; a registry entry only helps if the treating provider actually checks it.

Changing or Revoking It Later

You can revoke your health care power of attorney at any time using any method that communicates your intent to revoke. Arizona does not require a specific format. Tearing up the document, signing a new one that replaces it, or telling your agent or doctor that you are revoking it all work. The revocation is effective as soon as you communicate it to either your agent or your health care provider.⁷

Once a health care provider learns of the revocation, they have to record it promptly in your medical record and notify your agent and the medical staff responsible for your care.⁷ Oral revocation is legal, but writing it down and delivering it to everyone holding a copy removes any ambiguity. If your real goal is to change agents, the cleanest move is to sign a fresh health care power of attorney naming the new person. Amendments generally have to meet the same signing and witnessing rules as the original, so at that point you are doing most of the work of a new document anyway.

1
Arizona Legislature. Arizona Code 36-3221 – Health Care Power of Attorney; Scope; Requirements; Limitations; Fiduciaries
2
Arizona Attorney General. Life Care Planning – Health Care Power of Attorney
3
Arizona Legislature. Arizona Code 41-257 – Signature if Individual Unable to Sign
4
Arizona Legislature. Arizona Code 36-3261 – Living Will; Verification; Liability
5
eCFR. Title 45 Section 164.502 – Uses and Disclosures of Protected Health Information
6
Arizona Legislature. Arizona Code 36-3203 – Surrogate Decision-Making Standards
7
Arizona Legislature. Arizona Code 36-3222 – Health Care Power of Attorney; Amendments