California takes a different structural approach to advance healthcare planning than most other states. Rather than using separate documents for the healthcare agent designation and the living will, California combines both functions into a single form called the Advance Health Care Directive. One document, properly executed, handles who makes decisions on your behalf and what your treatment preferences are. That consolidation is convenient, but California's form also has specific requirements, restrictions, and powers that differ from other states in ways worth understanding before you sign.
California's Advance Health Care Directive: what it covers
The California Advance Health Care Directive is governed by the California Probate Code, Sections 4600 through 4806. The form combines two distinct functions in one document.
The first is the agent designation: naming a specific person (the healthcare agent, sometimes called the healthcare proxy or surrogate) to make medical decisions on your behalf when you cannot make them yourself. The agent's authority is broad. They can consent to or refuse medical treatment, access your medical records under HIPAA, communicate with your providers, authorize transfers between facilities, and make the full range of decisions a patient would normally make in person.
The second is the individual health care instructions: your own documented wishes about specific types of treatment, particularly end-of-life interventions. This is the living will component. You can specify whether you want life-sustaining treatment in defined circumstances, what your preferences are around comfort care and pain management, and how you want your agent to weigh quality of life against length of life.
California's form also includes sections for organ and tissue donation preferences and for nominating a conservator if one is ever needed. Both are optional components of the form.
Execution requirements
A California Advance Health Care Directive must be signed by the principal and either acknowledged before a notary public or signed in the presence of two adult witnesses. Notarization and the two-witness method are alternatives, not cumulative requirements. Either one alone satisfies the execution requirement.
In practice, the two-witness method is more common because it requires no appointment and no fee. However, if you anticipate that your directive might be used in a context where institutional parties are unfamiliar with the California form, notarization provides an additional level of formality that can reduce resistance.
California has strict rules about who can serve as a witness. The following people cannot witness the Advance Health Care Directive:
The designated healthcare agent cannot be a witness. Anyone related to the principal by blood, adoption, or marriage cannot be a witness. Anyone entitled to receive any portion of the principal's estate upon death cannot be a witness. The principal's healthcare provider cannot be a witness. An employee of the principal's healthcare provider, or an employee or operator of a community care facility or residential care facility where the principal is receiving care, cannot be a witness.
These restrictions exist to prevent people with potential conflicts of interest from witnessing a document that could affect their own inheritance or professional relationship with the patient. Using witnesses who have no personal or financial relationship with the principal or the designated agent is the safest approach.
The skilled nursing facility exception
If the principal is a patient in a skilled nursing facility at the time of signing, California imposes an additional requirement: the directive must also be witnessed by a patient advocate or ombudsman designated by the California Department of Aging. This requirement applies regardless of whether the principal uses witnesses or a notary for the standard execution requirement. The ombudsman requirement is in addition to, not a substitute for, the standard execution.
The ombudsman requirement exists to protect vulnerable patients who may be subject to undue influence from facility staff or family members. California law recognizes that patients in skilled nursing facilities are in a particularly vulnerable position when making advance care planning decisions, and the independent ombudsman provides an additional safeguard.
If you are in a skilled nursing facility and need to execute or update an Advance Health Care Directive, contact the facility's social worker or patient advocate to identify the designated ombudsman for your facility. The California Department of Aging maintains a directory of long-term care ombudsmen by county.
What powers the agent has and does not have
Under the California Advance Health Care Directive, the agent's authority covers all healthcare decisions unless the principal specifically limits it in the document. The agent can consent to or refuse any medical treatment, authorize or decline surgery, access medical records, and make decisions about the principal's care in any healthcare setting.
However, California law places specific limits on the agent's authority that cannot be overridden even by the directive. The agent cannot authorize voluntary inpatient mental health treatment. The agent cannot consent to convulsive treatment (electroconvulsive therapy). The agent cannot authorize psychosurgery, sterilization, or abortion. These decisions remain with the principal and cannot be delegated to a healthcare agent under California law.
The agent also cannot make decisions that are inconsistent with the principal's documented health care instructions in the directive. If the directive states that the principal does not want mechanical ventilation in a defined terminal condition, the agent cannot authorize it over that documented instruction. The principal's written instructions take precedence over the agent's judgment for the specific situations the instructions address.
Making the directive effective: HIPAA authorization
A California Advance Health Care Directive automatically includes HIPAA authorization for the named agent. Under the federal Health Insurance Portability and Accountability Act (HIPAA), healthcare providers cannot share a patient's medical information with third parties without authorization. The California Advance Health Care Directive's agent designation constitutes the authorization needed for the agent to access the principal's medical records and communicate with providers.
This HIPAA authorization built into the directive means the agent does not need a separate HIPAA release to do their job. However, some healthcare providers and institutions have their own HIPAA release forms and may request completion of their form in addition to the directive. Complying with these requests while the principal has capacity, rather than waiting until incapacity triggers the need, eliminates friction later.
After execution: where to keep it and who to notify
A California Advance Health Care Directive takes effect as a private legal document upon proper execution. It does not need to be filed with any court or government agency. What matters is that it is accessible to the people who will need it before a crisis makes that accessibility urgent.
Provide the original or a certified copy to the designated healthcare agent. Give a copy to your primary care physician for inclusion in your medical record. If you have specialists, give them copies. California has a voluntary advance directive registry maintained by the Secretary of State's office, which allows you to register your directive so that providers can access it electronically. Registration is not required but can be useful if you are hospitalized at a facility that does not already have a copy.
For people creating a complete estate plan, Quicken WillMaker & Trust by Nolo generates the California Advance Health Care Directive alongside a will, living trust, and financial power of attorney in one guided package, with language updated annually to reflect current California Probate Code requirements.
Updating or revoking the directive
A California Advance Health Care Directive can be revoked or amended at any time while the principal has decision-making capacity. The principal can revoke the directive verbally in the presence of a healthcare provider, by executing a written revocation, or by executing a new directive that supersedes the old one.
A verbal revocation communicated to a healthcare provider is effective as to that provider. For the revocation to be effective across all providers and institutions that have a copy of the original directive, written notification to each is the more complete approach. If the original directive was registered with the California Secretary of State's registry, the revocation should also be reported to the registry.
Divorce or legal separation in California automatically revokes an Advance Health Care Directive that names the former spouse as agent, under Probate Code Section 4697. The revocation applies to the agent designation only. The health care instructions in the directive remain effective. After a divorce, updating the directive to name a new agent is important even though the former spouse's authority has been automatically terminated.
A real-world example
Sandra, 72, lives in Sacramento and has two adult children. She executes a California Advance Health Care Directive naming her daughter as agent and her son as successor agent. She documents that she does not want life-sustaining treatment if she is in a persistent vegetative state or has a terminal illness with no reasonable expectation of recovery, and that she wants aggressive comfort care regardless of other treatment decisions. She uses two neighbors as witnesses, confirms neither is related to her or named in her estate plan, and has both sign the document in her presence. She gives copies to her doctor and her daughter, stores one with her will and trust documents, and registers the directive with the California Secretary of State's registry. Three years later, she updates the directive after her daughter moves abroad, changing the primary agent to her son. She revokes the old directive in writing and distributes the new one to the same parties.
Frequently Asked Questions
Does California recognize advance directives from other states?
Yes. California Probate Code Section 4676 provides that a healthcare directive executed in another state is valid in California if it complied with the laws of that state or if it complies with California law. In practice, providers may be less familiar with out-of-state forms and may request clarification or additional documentation. If you have recently moved to California, re-executing California's Advance Health Care Directive is the most straightforward way to ensure your wishes will be followed without institutional friction.
Can I use a different form than the California statutory form?
Yes. California law does not require use of the statutory form. A custom document that meets the substantive and execution requirements of the California Probate Code is legally valid. However, the statutory form is familiar to California healthcare providers and is legally required to be accepted. A custom document may encounter more scrutiny, particularly from institutions that have formal processes for reviewing non-standard advance directives. For most people, the statutory form is the practical choice.
What happens if my agent and my doctor disagree about my treatment?
The agent's authority generally prevails for decisions within the scope of the directive, unless the physician has a conscientious objection or believes the requested treatment is medically inappropriate. A physician who objects to following an agent's instructions must inform the agent and facilitate transfer to a provider who will honor the directive. California law does not allow providers to override a valid directive and agent's decision without justification. If a dispute cannot be resolved, it may require involvement of the hospital's ethics committee or, in extreme cases, court intervention.
Does my California healthcare agent have authority over financial decisions?
No. The California Advance Health Care Directive gives the agent authority only over healthcare decisions. Financial authority requires a separate document: the California Durable Power of Attorney for Finances (Uniform Statutory Form Power of Attorney). Many people execute both documents as part of a complete estate plan, often naming the same person as agent for both, but the two documents are legally separate and serve entirely different purposes.
Is a California advance directive effective immediately or only upon incapacity?
The agent's decision-making authority activates only when the principal lacks capacity to make their own healthcare decisions, as determined by the principal's attending physician. The health care instructions in the directive become operative in the specific circumstances the document defines, typically when two physicians confirm the principal has a terminal condition, is in a persistent vegetative state, or meets another defined threshold. The document is signed and valid before any of this happens, but the authority it grants is dormant until the triggering condition is met.