People who hear about cryonics for the first time often ask the same question: is that even legal? In most of the United States and the United Kingdom, the short answer is yes, but only after a person has been legally declared dead. The details, however, vary from place to place, and the biggest legal risks usually come not from governments but from missing paperwork and family disagreements.
This guide is general information, not legal advice. Laws change and differ by state and country. If you are making real arrangements, talk to the cryonics provider and a lawyer where you live.
Why cryonics must happen after legal death
Cryonics is not a medical treatment, and no law allows a living person to be cryopreserved. Doing so would legally be considered ending someone's life.
This was tested in the United States in the early 1990s, when a California man with a brain tumor, Thomas Donaldson, asked the courts for the right to be cryopreserved before his illness destroyed his brain. The courts refused, and the principle has held since: cryonics can only begin after a physician or other authorized person pronounces legal death.
That is why cryonics providers focus so much on standby, a team waiting nearby to begin cooling as soon as possible after death is pronounced. The law sets the starting line, and every minute afterwards matters for preservation quality. Our guide on how cryonics works explains the process step by step.
How the US treats cryonics: an anatomical donation
In the United States, cryonics is generally handled under the Uniform Anatomical Gift Act, the same family of laws that governs donating your body to medical research or your organs for transplant. A person signs documents donating their body or brain to a cryonics organization, which then becomes legally responsible for it.
This approach has several practical consequences:
- The usual death paperwork still applies. A death certificate must be completed, and moving a body across state lines requires the normal permits, usually arranged with a licensed funeral director.
- An autopsy can be a problem. If a death is unexpected or suspicious, a coroner or medical examiner may order an autopsy, which can seriously damage the brain and delay preservation. Some states let people record a religious or personal objection to autopsy, but officials can still order one in certain cases.
- Funding is usually through life insurance. It is legal to name a cryonics organization as the beneficiary of a life insurance policy, which is how most members pay.
Individual states have occasionally tried to regulate cryonics more tightly, for example by treating providers like cemeteries or funeral homes. Rules differ, which is one reason providers are based in states where their legal status is well established.
The United Kingdom
Cryonics is legal in the UK, although there is no UK facility that stores patients long term. People who choose it typically arrange for preparation in the UK and transport to a facility in the US or Europe, which adds cost and delay.
In 2016 a UK High Court case drew wide attention. A 14-year-old girl with terminal cancer wanted to be cryopreserved, and her parents disagreed. The judge did not rule on whether cryonics was a good idea, but decided her mother could make the arrangements, as the girl had wished. The case highlighted how important a person's clearly stated wishes can be.
Canada
Canadian rules depend on the province. Most notably, British Columbia has a law prohibiting the sale or advertising of arrangements for preserving bodies in the expectation of future revival. Residents of that province who want cryonics have generally had to make arrangements in ways that avoid those restrictions, often with organizations outside the province.
France and other countries
Some countries require that bodies be buried or cremated, or donated to science under specific rules. In France, courts have ruled that families could not keep their relatives cryopreserved in the country, in a well-known case involving a family who stored the bodies of their parents in a private freezer.
Cryonics organizations also exist in Russia, Europe and Australia, each operating under local law. If you live outside the US, the key questions are whether your local law allows the procedures, and how quickly a body could be legally transported to a facility.
The most common legal problem: family conflict
In practice, the biggest threat to someone's cryonics arrangements is often a disagreement among relatives. A spouse, child or sibling who does not support cryonics may object, delay the process, or challenge the arrangements in court. Delays alone can harm the outcome.
People who have made arrangements usually protect them by:
- Signing the provider's legal documents, including the anatomical donation forms, well in advance.
- Putting their wishes in writing in more than one place, such as a will, an advance directive and a separate signed statement.
- Telling family directly, and early, so nobody is surprised at the hospital.
- Carrying an emergency card or bracelet with the provider's phone number.
A will alone is not enough. Wills are often read days or weeks after death, long after decisions about the body have been made.
What about people who do not want to be revived?
The law around revival is mostly about the procedure. It says very little about the reverse question: what if a person would not want to be brought back if future medicine could do it, or would only want it under certain conditions? Standard legal documents were not written with that question in mind. Our guide to revival wishes and legal documents explains what existing forms can and cannot do.
Whether you are planning cryonics, firmly against it, or still unsure, it helps to write your answer down. Revival Registry is a private place to record YES, NO or Not sure yet, with your own conditions and family contacts. It is a record of your wishes, not a legal document or a promise of revival, but it means the people around you never have to guess.