Mississippi: Health Care Power of Attorney Requirements
The short answer
A Mississippi health care power of attorney must be written, dated, signed by an adult or emancipated minor, and either signed by two qualified witnesses or acknowledged before a notary. The agent’s authority begins only when the primary physician determines the principal lacks capacity unless the document says otherwise. The agent may make any health care decision the principal could make, but admission to a mental health institution must be expressly authorized in the written directive.
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This is the general rule in Mississippi. Ezel applies current Mississippi law to your specific facts and answers with citations to the statutes.
| Governing law & document | Mississippi Uniform Health-Care Decisions Act, Miss. Code §§ 41-41-201 to -229. A power of attorney for health care is one kind of advance health-care directive and may be combined with individual treatment instructions. Section 41-41-209 publishes an optional combined form; another writing may be used |
|---|---|
| Who can sign | An adult (18+) or emancipated minor may execute it. The power must be in writing, dated, and signed by the principal (§§ 41-41-203, 41-41-205(2)); the section states no alternate signature-at-direction procedure |
| Witnesses or notary | Either 2 qualified witnesses OR acknowledgment before a notary public in Mississippi (§ 41-41-205(2)). Each witness must see the principal sign or acknowledge the signature or instrument and make the statutory declaration |
| Who can't witness or serve | No witness may be the agent, a health-care provider, or an employee of a health-care provider or facility; at least 1 witness must be unrelated by blood/marriage/adoption and not an heir (§ 41-41-205(2)). Unless related to the principal, the agent cannot be an owner, operator, or employee of the residential long-term-care institution where the principal receives care |
| When the agent can act | Springing by default: authority begins only when the primary physician determines the principal lacks capacity and ends on a determination of recovered capacity, unless the power says otherwise (§ 41-41-205(5)-(6)). The statutory form allows immediate authority |
| Agent's powers & limits | The agent may make any health-care decision the principal could make while having capacity, including life-support and artificial-nutrition decisions, subject to document limits (§§ 41-41-203, 41-41-205). The agent follows known instructions and wishes, otherwise the principal’s best interest and values. Admission to a mental health-care institution requires express authority in the written directive (§ 41-41-227(5)) |
| How to revoke | Revoke the agent designation only by signed writing or by personally informing the supervising health-care provider; other directive provisions may be revoked anytime in any manner communicating intent (§ 41-41-207(1)-(2)). Annulment, divorce, dissolution, or legal separation revokes a spouse-agent unless the decree or health care POA says otherwise (§ 41-41-207(4)) |
| Out-of-state directives | A directive that complies with Mississippi’s Act is valid regardless of when or where it was executed or communicated (§ 41-41-205(10)); the Act does not separately validate every directive solely because it complied with another state’s law. A copy has the same effect as the original (§ 41-41-225) |
Compare this rule across all 50 states + DC →
Mississippi uses one combined advance health-care directive under the Uniform
Health-Care Decisions Act. The document may appoint an agent, state treatment instructions,
or do both. Section 41-41-209 publishes an optional form, but the statute expressly permits
another writing.
Requirements one by one
Who can sign
An adult age eighteen or older or an emancipated minor may execute the power. Section
41-41-205 requires the document to be written, dated, and signed by the principal. Unlike
some states’ acts, this section does not provide an alternate method for another person to
sign the principal’s name at the principal’s direction.
Witnesses or notary
Mississippi gives two alternatives. The principal may use at least two qualified witnesses,
each of whom saw the principal sign or heard the principal acknowledge the signature or the
instrument, or the principal may acknowledge the document before a notary public in
Mississippi (§ 41-41-205). Both are not required.
The witness declarations do more than attest a signature. Each witness declares under
penalty of perjury that the principal is personally known, signed or acknowledged in the
witness’s presence, appears of sound mind and free of duress, fraud, or undue influence, and
that the witness is not disqualified.
Who cannot witness or serve
The agent, a health-care provider, and an employee of a health-care provider or facility may
not witness. At least one of the two witnesses must be unrelated to the principal by blood,
marriage, or adoption and not entitled to inherit from the principal under an existing will
or by operation of law (§ 41-41-205).
The agent has a separate institutional restriction. Unless related to the principal by blood,
marriage, or adoption, the agent may not be an owner, operator, or employee of the residential
long-term-care institution where the principal is receiving care.
When the agent can act
The default is springing authority. Unless the power says otherwise, the agent begins acting
only when the primary physician determines the principal lacks capacity, and the authority
ends when the physician determines capacity has returned (§ 41-41-205). The optional form
allows the principal to choose immediate authority instead.
Agent powers and limits
The agent may make any health-care decision the principal could make while having capacity,
including decisions about life-sustaining treatment and artificial nutrition and hydration.
The agent must follow the principal’s instructions and known wishes; if those are unknown,
the agent uses the principal’s best interest and known personal values (§ 41-41-205).
One authority needs express language. Under § 41-41-227, an agent may not consent to
admission to a mental health-care institution unless the written directive expressly grants
that power.
How to revoke
The agent designation has the stricter rule: revoke it only through a signed writing or by
personally informing the supervising health-care provider (§ 41-41-207). Other portions of
the directive may be revoked at any time and in any manner communicating intent.
Annulment, divorce, dissolution, or legal separation automatically revokes a spouse-agent
unless the decree or the health care power of attorney says otherwise. A later conflicting
directive revokes the earlier one only to the extent of the conflict.
Out-of-state directives and copies
Section 41-41-205 says a directive complying with Mississippi’s Act is valid regardless of
when or where it was executed or communicated. That is narrower than a statute that honors
every document solely because it complied with the law of the state where it was signed.
Under § 41-41-225, a copy has the same effect as the original.
What trips people up
- Using two interested witnesses. Both witnesses must avoid the provider/employee/agent
bars, and at least one must also be unrelated and not an heir. - Treating oral notice to anyone as enough to remove the agent. The principal must use a
signed writing or personally inform the supervising health-care provider. - Assuming general health-care authority includes mental-health admission. The written
directive must expressly grant that authority under § 41-41-227.
Common questions
Does a Mississippi health care power of attorney need both witnesses and a notary?
No. Section 41-41-205 permits either two qualified witnesses or acknowledgment before a
notary.
Can the agent act immediately?
Yes, if the document says so. Otherwise the agent’s authority begins only when the primary
physician determines the principal lacks capacity.
Does divorce revoke a spouse-agent?
Yes. Annulment, divorce, dissolution, or legal separation revokes the designation unless the
decree or health care power of attorney provides otherwise.
Will a copy work?
Yes. Section 41-41-225 gives a copy the same effect as the original.
Statutes and sources
- Miss. Code §§ 41-41-201 to -229 — Mississippi Uniform Health-Care Decisions Act.
https://unicourt.github.io/cic-code-ms/transforms/ms/ocms/r78/gov.ms.code.title.41.html
(accessed 2026-07-17) - Miss. Code § 41-41-203 — definitions of adult, advance directive, agent, capacity,
health-care decision, and health care power of attorney. (same official-code release) - Miss. Code § 41-41-205 — writing, date, principal signature, witnesses-or-notary,
disqualifications, effective time, agent authority, and validity regardless of place.
(same official-code release) - Miss. Code § 41-41-207 — revocation and spouse-agent termination. (same release)
- Miss. Code § 41-41-209 — optional combined statutory form. (same release)
- Miss. Code §§ 41-41-225 and 41-41-227 — copies and the express-authority
requirement for mental-health admission. (same release)
Source links
Every statute quoted above, linked, with the date we checked it.
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