In almost every case, family members cannot override a POLST form. A properly completed POLST is a physician’s medical order, not a preference statement, and healthcare providers are legally directed to follow it even when relatives object. Most states shield providers from liability when they honor a valid POLST in good faith, and courts have sided with patients whose end-of-life wishes were ignored.1American Medical Association. Overcoming Legal Impediments to Physician Orders for Life-Sustaining Treatment There are a few narrow situations where a relative with the right legal standing can request changes or challenge the form’s validity, but simple disagreement is not one of them.
Why a POLST Binds the Medical Team
The POLST is different from a living will in a way that matters here. A living will states general wishes and typically waits for a physician to interpret it. A POLST is a set of specific medical orders written by a healthcare provider after a direct conversation with the patient or an authorized surrogate.2American Medical Association. Overcoming Legal Impediments to Physician Orders for Life-Sustaining Treatment – Section: The POLST Paradigm Paramedics, nurses, and emergency staff can act on it right away without waiting for anyone to weigh in.
That legal status is why family objections carry so little weight at the bedside. Providers who follow a valid POLST in good faith have immunity from civil and criminal liability in most states with POLST programs. The legal risk actually runs the other way. Families are bringing lawsuits against providers who subjected patients to unwanted treatment, and courts have been receptive to those claims.1American Medical Association. Overcoming Legal Impediments to Physician Orders for Life-Sustaining Treatment A physician who caves to family pressure and reverses a POLST is in a worse legal position than one who follows it. When a nurse tells you the team has to honor the form, that is not stubbornness. It is the law protecting the patient’s rights.
The Patient Is Always in Charge While Capable
A patient who still has decision-making capacity can change or revoke their POLST at any time, for any reason, without anyone else’s permission. The usual method is to complete a new form with a provider, or to void the existing one by drawing a line through the treatment sections, writing “VOID” across it, and signing. No court order, family sign-off, or waiting period is needed. The current wishes control.
This is where a lot of family confusion starts. If your relative is awake and mentally capable, no one else has authority to countermand what the POLST says. If they want it changed, they can change it. If they do not, that is the end of the discussion for everyone else.
When a Surrogate Can Step In
The picture shifts once a patient loses capacity. A majority of states allow or require a legally authorized surrogate to sign a POLST for a patient who can no longer participate.3National Library of Medicine. POLST Signature Requirements: Responding With Compassion While Ensuring Informed Consent The surrogate is usually the person named as healthcare agent in a power of attorney. Without a named agent, a court-appointed guardian or the next of kin takes the role, following the priority order in state law.
A surrogate with that authority can request changes to the POLST, but the process is more demanding than what a capable patient faces. National POLST standards call for the surrogate to consult with the treating physician, review any existing advance directive, and make a genuine effort to act consistently with what the patient would have wanted before revoking or modifying the form. Some states have written those safeguards directly into their statutes. The physician should document the reasons for any change in the medical record.
The distinction that trips people up: a legal surrogate can modify the POLST, but a family member who just disagrees cannot. Being a spouse, adult child, or sibling does not automatically make someone a legal surrogate. Without a power of attorney designation, a court appointment, or standing under your state’s default surrogate hierarchy, disagreement carries no legal force against a valid POLST.
One more wrinkle worth knowing. If a surrogate completes a POLST for an incapacitated patient and the patient’s own living will says something different, the living will typically prevails. The patient’s directly expressed wishes outrank a surrogate’s later decision.
Grounds a Family Member Can Actually Raise
Relatives who believe a POLST does not reflect the patient’s real wishes are not entirely out of options, but the paths are narrow. A challenge is most likely to work on one of these grounds.
- Lack of capacity at signing. If the patient did not have the mental ability to understand what they were agreeing to when the POLST was signed, the document may be invalid. This is hard to prove after the fact, since a provider co-signed after a direct conversation, but it is possible with evidence of cognitive decline or undue pressure.
- Surrogate acting against the patient’s wishes. Where a surrogate signed the form, family can argue that the surrogate’s decisions conflict with what the patient said while still competent. Prior statements, a values history, or a living will can support that argument.
- Procedural defects. If the form was not properly signed by both the patient (or surrogate) and a qualified provider, or if the required conversation never happened, it may not be legally valid. Missing signatures and unsigned sections are the clearest examples.
- Changed medical circumstances. A POLST completed years ago may not fit the patient’s current condition. This is not a legal defect in the document, but it can support a request for the treating physician to open a new goals-of-care conversation and update the form.
None of these grounds let a family member simply tell the medical team to ignore the POLST. Each one requires either formal review inside the healthcare institution or, if things escalate, a court proceeding.
How Disputes Get Resolved
Disagreements usually surface when family feel shut out of the decision or think the form does not match what their loved one truly wanted. Hospitals and health systems have processes for handling this before it escalates.
The first step is typically a care conference. The medical team, the surrogate, and concerned family sit down to talk through what the POLST says and the reasoning behind it. Many disputes dissolve once relatives understand how the document came about. When they do not, a hospital ethics committee can review the situation and offer guidance on the ethical and medical questions in play.4PubMed Central. Hospital Ethics Committees: Responsibilities, Competencies and Challenges Ethics committees rarely have binding authority, but their recommendations carry weight with clinical staff and often move parties toward resolution.
Mediation is another option, especially when the conflict is more about family dynamics than about medical facts. A neutral mediator can open up communication that a clinical setting cannot.
Court intervention is the last resort. A judge can rule on a POLST’s validity, appoint a guardian, or issue orders about treatment. This path is slow, expensive, and painful for everyone, which is why most disputes settle at one of the earlier stages.
If There’s No POLST or You’re in a State Without a Program
When a patient has lost capacity and there is no POLST or other advance directive, decisions fall to a surrogate under state law. The typical priority order runs from a court-appointed guardian to a healthcare power of attorney agent, then spouse or domestic partner, adult children, parents, siblings, and in some states, a close friend. The surrogate is expected to decide based on what the patient would have wanted, drawing on known values and prior statements. When those wishes are genuinely unknown, the standard shifts to the patient’s best interests.
As of 2025, seven states still lack any official recognition of a standardized POLST form in their laws or regulations. A POLST-style form may be used in clinical practice in those states, but it may not carry the same legal weight as a formal medical order. If you live in one of them, a healthcare power of attorney and a detailed living will do more of the work.