What is the difference between an AHCD and a POLST?

An AHCD is a legal directive signed by you (the patient) while you have capacity. It names a healthcare agent and states your wishes. A POLST (Physician Orders for Life-Sustaining Treatment) is a medical order signed by a physician, nurse practitioner, or physician assistant, on a bright pink form, that paramedics and hospital staff follow immediately. The AHCD speaks for you. The POLST is an order. Most people who are seriously ill or frail need both: the AHCD as the underlying legal document, the POLST as the actionable medical order.

Who can be a witness on a California Advance Healthcare Directive?

Any two adults who personally know you and can attest to your identity and to the fact that you appeared to sign voluntarily and with sound mind. Witnesses can’t be your appointed healthcare agent, the operator or employee of a community care facility where you live, or your healthcare provider. One witness must be someone unrelated to you by blood, marriage, or adoption and not entitled to any part of your estate. If you live in a skilled nursing facility, one witness must be a patient advocate or ombudsman.

Do I need a notary for a California AHCD?

No, witnessing is an alternative. Either two qualified adult witnesses or a notary public can validate the signature. Most California families use witnesses because it’s simpler. The notary route can be helpful if witnesses aren’t available or if the document will be presented out of state.

Can my doctor be my healthcare agent?

No. California Probate Code § 4659 prohibits your treating healthcare provider, an employee of your healthcare provider (unless related to you by blood, marriage, or adoption), or an operator or employee of a community care facility where you live (with similar narrow family exceptions) from serving as your agent. The rule prevents conflicts of interest.

What happens if I don’t have an AHCD?

California has a default surrogate-decision-maker statute (Probate Code § 4711) that gives doctors a priority order: spouse, adult children, parents, siblings. But the default rule doesn’t apply in every situation, doesn’t name a single decisionmaker, and can lead to family conflict when siblings disagree. Hospitals often pause and convene an ethics committee when there’s no AHCD and the family is split. An AHCD prevents this.

How do I register my AHCD with California?

The California Secretary of State maintains an Advance Healthcare Directive Registry. Registration costs a small fee (currently $10) and lets any California hospital pull your directive electronically with your name and ID number. It’s optional. Most patients distribute copies to their healthcare agent, primary physician, and preferred hospital instead, which is free and equally effective if the documents reach the right places. Registry is most useful for people who travel or might be admitted away from home.

Can I change my AHCD later?

Yes, while you have capacity. You can revoke or amend it at any time by signing a new directive (which automatically revokes the prior one), destroying the original, or signing a written revocation. You can also designate a different agent at any time. Tell every copy holder when you change it; old directives in old files cause hospital confusion.

When should I have an AHCD versus a POLST?

Every California adult should have an AHCD, regardless of health status. A POLST is appropriate only when the patient has advanced illness or significant frailty, generally meaning the answer to the clinical “surprise question” (would you be surprised if this person died in the next year?) is no. A healthy 40-year-old needs only the AHCD. A frail 85-year-old with advanced heart failure needs both: the AHCD as legal directive plus the POLST as actionable clinician order. The AHCD never becomes obsolete; the POLST is layered on top when medical reality calls for it.

What is the California AHCD Registry, and is it worth $10?

The California Secretary of State runs an Advance Healthcare Directive Registry (sos.ca.gov/registries/advance-health-care-directive-registry). For a one-time $10 fee, you submit your signed directive and receive a registration ID and wallet card. Any California hospital can call the Secretary of State or query the system to pull your directive 24/7. It is genuinely useful for: people who travel frequently within California, people who live alone, people whose family lives far away, and people who have multiple homes. It is less useful if your healthcare agent and primary physician already have current copies and your hospital of choice is local.

What if my agent disagrees with my written instructions?

Under California Probate Code § 4684, your agent is required to make decisions in accordance with your individual instructions and your known wishes. If your written Part 2 instructions clearly cover the situation, the agent must follow them. If the instructions are silent or ambiguous, the agent must use substituted judgment (what you would have wanted based on your values), and only failing that may the agent use their own best-interest judgment. Treating physicians can challenge an agent who appears to be acting contrary to written instructions and can request a clinical ethics consultation; in extreme cases an interested party can petition the probate court under § 4766 to seek instructions or remove the agent.

Do I need a different AHCD for each state I live in?

California law (Probate Code § 4676) recognizes out-of-state advance directives that comply with the law of the state where executed or that substantially comply with California requirements. But hospital staff in California are most comfortable acting on the California statutory form. If you split time between California and another state, the practical answer is to execute the California AHCD while in California (and the equivalent in your other state). If you only travel occasionally, the California AHCD plus a brief travel letter to the other state’s agent contact is usually sufficient.

Advance Healthcare Directive: form, witnesses, agents

What the AHCD does, in plain English

The California Advance Healthcare Directive is one document with two parts. Part 1 names a healthcare agent, the person who makes medical decisions if you can’t. Part 2 lets you write your own healthcare instructions, including end-of-life wishes, organ donation, and your primary physician.

It’s a statutory form, meaning California law (Probate Code § 4700+) defines what the form must contain and how it must be signed. The attorney general’s office publishes a fillable PDF. Hospitals, nursing facilities, and elder-law attorneys hand out their own versions of the same statutory form.

How to fill it out

Part 1, the healthcare power of attorney section, asks for:

The name and contact of your healthcare agent (one primary, one or more alternates)
When the agent’s authority begins (when you can’t make your own decisions, the default, or immediately, if you want)
The agent’s authority to consent to specific situations (autopsy, organ donation, disposition of remains)
Limits on the agent’s authority if you want to specify any

Part 2, the individual healthcare instructions, has three core choices:

End-of-life choice A: don’t prolong life if any of three conditions exist (incurable terminal condition, unconscious without expected recovery, or burdens of treatment outweigh benefits)
End-of-life choice B: do everything possible to prolong life within standards of care
Or write your own instructions in free-text

Other Part 2 items: artificial nutrition and hydration, relief from pain (almost always selected), donation of organs at death, and primary physician.

Witness vs notary

Either path works. The form must be signed and dated by the principal (you) and then either:

Witnessed by two qualified adults who know you, attest to your identity, and confirm you signed voluntarily and with sound mind. One witness must be unrelated to you by blood, marriage, or adoption and not entitled to inherit any part of your estate. Neither witness can be your healthcare agent, your healthcare provider, or an employee of your residential facility.
Notarized by a California notary public. The notary verifies your identity and your signature.

If you live in a skilled nursing facility (SNF), there’s an additional requirement: at least one witness must be a patient advocate or ombudsman designated by the State Department of Aging. This is to protect SNF residents from undue influence.

Who can be your agent (and who can’t)

Almost any adult who knows you well and is willing to act in a medical crisis. The exceptions, under Probate Code § 4659:

Your treating healthcare provider
An employee of your treating healthcare provider, unless they’re related to you by blood, marriage, or adoption
An operator of a community care facility where you live
An employee of a community care facility where you live, unless related to you by blood, marriage, or adoption

These restrictions prevent the people most likely to have a financial conflict from also being the person who decides whether to continue treatment.

Distributing copies

A signed AHCD that nobody can find is worthless. Standard distribution after signing:

The original to your healthcare agent
A copy to each alternate agent
A copy to your primary physician (have them upload it to your chart)
A copy to the hospital you would most likely use
A copy to one or two close family members who don’t live with the agent
A copy in your own files at home, with a note where the original is

Optional: register with the California Secretary of State’s Advance Healthcare Directive Registry. The fee is small (currently $10). The state issues you a registration ID. Any California hospital with the patient’s name and ID can pull the directive electronically. This is most useful for people who travel or live far from family.

AHCD vs POLST: same goal, different tools

Patients sometimes ask: if I have an AHCD, do I need a POLST? Usually, yes, once you become seriously ill or frail. The difference:

AHCD is your legal directive, signed by you, that appoints an agent and states your wishes. It works at every stage of life.
POLST is a medical order, signed by a clinician, on a bright pink form. It tells paramedics and hospital staff exactly what to do (or not do) in the moment.

A healthy 60-year-old typically needs only the AHCD. A frail 80-year-old with advanced heart failure or moderate dementia typically needs both: the AHCD as the underlying legal document, the POLST as the actionable order that paramedics will follow when they arrive.

Talk to a California-licensed elder-law attorney about which documents fit your situation, and to your physician about whether and when a POLST is appropriate.

The statutory form, part by part

California Probate Code § 4701 publishes the optional but widely-used statutory form. The structure is fixed even when an attorney customizes it. There are four parts plus signatures and witnessing.

Part 1: Power of Attorney for Health Care

Names the primary healthcare agent and any alternates with full contact information. Specifies when authority begins: the default is when the principal lacks capacity, but the form allows “effective immediately” as an alternative. Authority can be expressly limited (for example, “my agent may not consent to electroconvulsive therapy”).

Part 2: Individual Health Care Instructions

Three default boxes, plus free-text. End-of-life Option A (don’t prolong life if incurable terminal condition, unconscious without expected recovery, or burdens of treatment outweigh benefits). Option B (prolong life within standards of care). Or write your own. Plus: artificial nutrition and hydration (whether to provide), relief from pain (almost universally selected), donation of organs (Part 3 covers this), and identification of primary physician (Part 4).

Part 3: Donation of Organs at Death

Indicate any wish to donate organs and tissues, and any limitations such as “transplant only, not research.” California Health and Safety Code § 7150 (Uniform Anatomical Gift Act) governs how donations are honored.

Part 4: Primary Physician

Optional. Names your primary physician (and an alternate). Helps clinicians coordinate across systems and ensures the right doctor is contacted if you are admitted to an unfamiliar hospital.

Signatures and witnessing

Sign and date in front of either a notary or two qualified adult witnesses, then either the notary completes the acknowledgment or the witnesses sign the witness block. Statutory of nursing facility residents have the extra rule about a state-designated patient advocate.

Witness rules, in detail

Probate Code § 4674 sets the witness requirements. Both witnesses must:

Be adults (18+)
Personally know you or have your identity verified
Witness you sign voluntarily, of sound mind
Sign in your presence and in the presence of each other

Neither witness may be:

The healthcare agent or any alternate agent
Your treating healthcare provider
An employee of your treating healthcare provider
The operator or an employee of a community care facility where you live
The operator or an employee of a residential care facility for the elderly where you live

At least one witness must additionally be unrelated to you by blood, marriage, or adoption, and not entitled to any part of your estate under any existing will or by operation of law.

If you live in a skilled nursing facility (SNF), Probate Code § 4675 requires that at least one witness be a patient advocate or ombudsman designated by the California Department of Aging. The local Long-Term Care Ombudsman office for your county will send someone for free. Find your county program at aging.ca.gov Long-Term Care Ombudsman.

How to actually complete a California AHCD, step by step

Download the form. Get the California Attorney General version at oag.ca.gov/consumers/general/adv_hc_dir. Hospital systems (UCLA Health, Sutter, Kaiser, UCSF) publish their own substantively identical versions.
Pick the healthcare agent and at least one alternate. Must be adults not in the prohibited categories. Talk to them first. The agent should understand your values, not just hold the form.
Complete Part 1. Fill in agents with full names, phone numbers, and addresses. Choose effective date. State any limits.
Complete Part 2. Read Options A and B carefully. Most California elder-law attorneys recommend Option A with customization (almost everyone wants pain relief even on Option A; spell it out).
Complete Parts 3 and 4. Organ donation preference. Primary physician.
Sign before notary or two qualified witnesses. Witnesses sign their block. The notary acknowledgment is an alternative.
Make at least 6 copies.
Distribute. Original to primary agent. Copies to alternate agents, primary physician (have them upload to chart), preferred hospital admission desk, 2-3 close family members.
Optionally registerwith the California Secretary of State’s Advance Healthcare Directive Registry, $10 one-time. You receive a wallet card with registration ID.
Re-execute every 5-10 years or sooner if your agent dies, you divorce, or your wishes change.

The Secretary of State AHCD Registry

California maintains a statewide electronic registry at sos.ca.gov/registries/advance-health-care-directive-registry. How it works:

Registration. Submit form RG-AHCD-1 with a legible copy of the signed directive and $10. Mail or in-person to the Sacramento Secretary of State office.
Confirmation. Within 2-4 weeks, you receive a registration ID and a wallet identification card.
Retrieval. Any healthcare provider, hospital, or designated family member with your name and ID can request the directive electronically. Most California hospitals know to check.
Updates. Submit a replacement to update; the old version is retained but flagged superseded. $10 per replacement.

The registry is genuinely useful for people who travel, live alone, have family in distant cities, or expect to be admitted at unfamiliar hospitals. For people whose immediate family and PCP already hold current copies, distributing directly is equally effective and free.

Distribute-to-providers checklist

Primary healthcare agent. Original signed directive. Confirm they know where it is.
Each alternate agent. Copy with cover note identifying them as alternate.
Primary care physician’s office.Bring at your next visit, ask the front desk to scan into the EHR. Confirm it’s in MyChart or equivalent.
Specialists. Cardiologist, oncologist, neurologist if you have ongoing relationships.
Hospital of choice. Admissions or pre-admission desk.
Health plan member services. Kaiser, Sutter, UCLA, UCSF all keep AHCDs in their internal system.
2-3 close family members. Particularly anyone who would be at the bedside in a crisis.
Your attorney (if you have one).
Yourself.A clearly labeled folder at home, plus a wallet card noting the agent’s phone number.

What it actually costs

Path	Low	Typical	High
DIY (AG form + free hospital witnessing)	$0	$0	$15 (printing/copies)
DIY + mobile notary visit	$75	$100	$200
AHCD as part of attorney 4-document package	$400	$800	$1,500
California Secretary of State Registry (one-time)	$10	$10	$10
Hospital-bed signing (mobile notary or attorney visit)	$150	$400	$800

Red flags to watch for

A “living will” form sold separately from the AHCD.California consolidated these into the AHCD in 2000. Anyone selling a “California living will” separate from the statutory AHCD is reselling an obsolete document.
Witnesses signed who are disqualified. A witnessed AHCD where one witness was the agent or a SNF employee can be challenged. Use a notary in any case of doubt.
An old AHCD with a deceased or incapacitated agent named. The form lists alternates for this reason. Walk through old AHCDs every 5 years; refresh if any name has changed.
Conflict between AHCD and a later POLST. The POLST is the actionable order in the medical moment, but it should reflect the AHCD. If your AHCD says Option A and your POLST says Full Treatment, ask the signing clinician to align them.
An attorney charging $1,500+ for an AHCD alone. Standard mid-market California pricing for the four-document package is $400-$1,200 total. AHCD alone should not exceed $500.

What attorneys actually do at this step

An elder-law attorney drafting an AHCD as part of a planning package spends 2-4 hours:

Values conversation (45-60 minutes).What matters most? Religious or cultural considerations? Specific experiences (a parent’s death) that shape the choices? Specific treatments to refuse or insist on?
Customization (30-60 minutes).The default California form is usable as-is. Custom drafting addresses things the default doesn’t: time-limited trial of intervention, specific instructions about dementia-stage triggers (e.g., “If I cannot recognize my children, do not pursue curative intervention”), instructions about VSED (voluntary stopping of eating and drinking), and POLST coordination.
Signing and witnessing (30-45 minutes). Firm provides notary and qualified witnesses. Reviews documents on-record.
Distribution and registry (30 minutes).Helps file with the Secretary of State’s registry. Provides cover letters to agents, physicians, and hospitals.

For most California families, the DIY path with the AG form is genuinely fine. Engage an attorney when there are family conflict risks, religious or values-based customization, dementia-specific triggers, or the AHCD is part of a broader estate plan.

Resources: PREPARE for Your Care (free UCSF-affiliated planning tool in 7 languages), Compassion & Choices, and the ABA Health Care Decision-Making toolkit. The California Long-Term Care Ombudsman program provides free witnessing for SNF residents.

Related guides and next steps

This guide explains planning options, not legal or financial advice. Talk to a California-licensed elder-law attorney about your specific situation. California Care Compass does not place referrals on Planning pages.

The California Advance Healthcare Directive: a one-page form that changes everything.