Short answer: At 18 your child is a legal adult in California (Fam. Code §6500), and being the parent who pays tuition and insurance gives you no authority to make their medical decisions or read their chart. An advance health care directive naming you as agent (Prob. Code §4671) and a HIPAA authorization naming you as a recipient close that gap. Both take one signing appointment, and both should be done before your student leaves home.
Until the 18th birthday, a parent is the child’s personal representative for medical purposes almost by default. The day after, the hospital treats your son or daughter like any other adult patient, and you’re a caller asking about someone else’s records. A college student living two hundred miles or two time zones away makes that gap real.
Law verified against Probate Code §§4671 to 4711, Civil Code §56.11, 45 C.F.R. §§164.502, 164.508 and 164.510, and 20 U.S.C. §1232g, 2026. This is general information, not legal advice for your situation.
What changes when your child turns 18
California defines a minor as anyone under 18 (Fam. Code §6500). Once your child crosses that line, the adult rules apply to their health care and their health information.
Under the federal privacy rule, a provider treats a person as the patient’s personal representative only if that person has authority under applicable law to make health care decisions for the adult patient (45 C.F.R. §164.502(g)(2)). A parent of an adult child doesn’t have that authority by being a parent. What remains is discretion: a provider may share information directly relevant to a family member’s involvement in the patient’s care, and if the patient is incapacitated, the provider decides in its professional judgment whether sharing is in the patient’s best interest (45 C.F.R. §164.510(b)). That’s a judgment call by a stranger at a nurses’ station. It isn’t a right.
College records follow the same pattern. Once a student turns 18 or attends a postsecondary school, the rights parents held under federal education privacy law belong to the student (20 U.S.C. §1232g(d)). The same statute carves out narrow exceptions, such as letting a school tell parents of certain alcohol or drug violations (20 U.S.C. §1232g(i)), but the default is that your child controls their records.
The advance health care directive
An adult with capacity may sign a power of attorney for health care that authorizes an agent to make health care decisions and may include the adult’s own instructions (Prob. Code §4671(a)). In California it’s part of the advance health care directive.
- Signing formalities. The directive must be dated, signed by your child, and either acknowledged before a notary or signed by two qualified adult witnesses (Prob. Code §4673(a)). The agent can’t serve as a witness, and neither can your child’s health care provider or the provider’s employee (Prob. Code §4674(c)).
- When the agent’s power starts. Unless the document says otherwise, the agent’s authority starts only when your child is determined to lack capacity (Prob. Code §4682), and that determination is made by the primary physician unless the directive says otherwise (Prob. Code §4658). Some students prefer a document that’s effective immediately so a parent can help with a scheduling or insurance problem while the student is still able to decide. That’s a drafting choice, and it should be made on purpose.
- Priority. An agent who is known to the provider as reasonably available and willing to serve has priority over anyone else in making health care decisions for the patient, unless the directive provides otherwise (Prob. Code §4685).
A patient can also designate an adult as a surrogate by personally telling the supervising provider, and that designation lasts for the course of treatment, the hospital stay, or 60 days, whichever is shorter (Prob. Code §4711). It only works if your child is conscious and able to say it.
The HIPAA authorization
Decision-making authority and access to information overlap, but they aren’t identical. Once a health care agent is authorized to act, California gives that agent the same right as the patient to request, receive, and copy medical information (Prob. Code §4678), and federal law treats the agent as the patient’s personal representative (45 C.F.R. §164.502(g)(2)). If the directive only takes effect on incapacity, you have no access before a physician makes that call, and you may be the person trying to find out whether your child is incapacitated at all.
A separate HIPAA authorization fills that window. A valid federal authorization has to describe the information, identify who may disclose it and who may receive it, state the purpose, include an expiration date or event, and carry the patient’s signature and date (45 C.F.R. §164.508(c)(1)). California’s medical privacy law adds its own requirements, including that the authorization be handwritten or in type no smaller than 14 point and signed separately from other language on the page (Civ. Code §56.11(b)). Your child can revoke it in writing at any time (45 C.F.R. §164.508(b)(5)).
I draft the authorization to cover current and future providers, because an emergency can put your child in a hospital they’ve never used. I cover the form in more detail in HIPAA release forms and their role in estate planning.
Should my college student also sign a financial power of attorney?
Usually, yes. A health care directive doesn’t reach bank accounts, a lease, a car registration, or financial aid paperwork. A durable power of attorney does. It’s durable if it says the agent’s authority survives the principal’s later incapacity, or that it takes effect on incapacity (Prob. Code §4124). Like the directive, it must be dated, signed, and either notarized or signed by two qualified witnesses (Prob. Code §4121).
| Advance health care directive | HIPAA authorization | Financial power of attorney | |
|---|---|---|---|
| What it covers | Your child’s agent makes health care decisions and may follow your child’s own instructions (Prob. Code § 4671(a)) | Access to your child’s health information | Bank accounts, a lease, a car registration, and financial aid paperwork |
| When it works | Only once your child is determined to lack capacity, unless the document says otherwise (Prob. Code § 4682) | Fills the window before that determination | Durable if it says the agent’s authority survives incapacity or takes effect on incapacity (Prob. Code § 4124) |
| Signing | Dated, signed by your child, and notarized or signed by two qualified adult witnesses (Prob. Code § 4673(a)) | Describes the information, who may disclose and receive it, and the purpose; has an expiration date or event; signed and dated by your child, who can revoke it in writing | Dated, signed, and notarized or signed by two qualified witnesses (Prob. Code § 4121) |
What happens if nothing is signed?
If your adult child can’t make decisions and hasn’t named anyone, the family is left with whatever the provider will do on its own judgment, and for longer-term needs, a court. A conservator of the person may be appointed for someone unable to provide properly for personal needs for physical health, food, clothing, or shelter, and a conservator of the estate for someone substantially unable to manage their own financial resources (Prob. Code §1801(a), (b)). A conservatorship is a court proceeding with its own filings, investigation, and hearings. The two documents above are how families keep a short-term crisis from turning into one. Avoiding conservatorship in California explains the difference.
Does it matter if my child goes to school out of state or abroad?
It matters. California honors a directive signed in another state if it complied with that state’s law or California’s (Prob. Code §4676(a)), but that rule governs California providers. Whether a hospital in another state honors a California document depends on that state’s law. I draft the directive in plain terms, have it notarized, and suggest a student at an out-of-state school keep a copy on file with the campus health center and on their phone. For study abroad, local law controls both the decisions and the records, and no one can promise how a foreign hospital will treat a California document. That’s a reason to sign before the flight, not a reason to skip it.
How the signing works with my office
My practice is fully remote. I meet with the family by phone or Zoom, prepare the directive, the HIPAA authorization, and the financial power of attorney, and a mobile notary comes to your child to sign in person. The college student document package lists what’s included. These documents also fit inside the family’s broader estate plan when parents are updating their own.
Your child signs, not you. The directive and the authorization are your child’s documents, they name you, and your child can revoke or change them later (Prob. Code §4671(a); 45 C.F.R. §164.508(b)(5)).
Want a straight read on where you stand?
Talk to Eric. A free 30-minute call, no pitch. He’ll tell you where you’re exposed, what it would cost to fix, and what you can skip.
Talk to Eric