Alkaline hydrolysis is legal in Michigan as a method of final disposition, and licensed funeral establishments offer it under the same permitting and authorization rules that govern flame cremation. The process, also marketed as water cremation or aquamation, uses heated water and an alkaline solution to reduce the body to bone fragments and a sterile liquid over several hours. The legal path is workable but less tidy than some provider websites suggest, so it helps to know where the authority sits before you call a funeral home.
Is It Actually Legal Under Michigan Statute
The honest answer is yes in practice, with a wrinkle on paper. Michigan’s Cemetery Regulation Act defines cremation as “the reduction of a dead human body to cremated remains by direct flame incineration.” That definition does not explicitly cover chemical dissolution. Even so, the Department of Licensing and Regulatory Affairs (LARA) permits licensed facilities to offer alkaline hydrolysis, and providers currently operate in the state.1Michigan Department of Licensing and Regulatory Affairs. Funeral Directors (Mortuary Science) The regulatory treatment is to route alkaline hydrolysis through the same permit pipeline as flame cremation, even though the underlying statute was written for fire.
The rules live in two places: Part 28 of the Public Health Code, which governs death registration and disposition permits, and the Occupational Code, which licenses funeral establishments. LARA enforces both.
Who Has the Legal Right to Authorize It
Michigan’s Estates and Protected Individuals Code sets a strict priority list for who decides disposition. The person at the top of the list, who is available and willing to act, controls the choice. In descending order:2Michigan Legislature. Michigan Compiled Laws 700.3206 – Estates and Protected Individuals Code (Excerpt)
- A military designee named under federal regulations, if the deceased was an active service member.
- A funeral representative the deceased named in writing while alive.
- The surviving spouse.
- Adult children, then grandchildren, parents, grandparents, and siblings, in that order.
- Descendants of the deceased’s parents or grandparents, with priority to whoever notifies the funeral home first.
For most civilian families, the funeral representative sits at the top. To name one, the person must be at least 18 and of sound mind, and the designation must be in writing, dated, and either signed in front of two witnesses or acknowledged before a notary. It can live in a will, a patient advocate designation, or a standalone document. If it is in a will, the will does not need to go through probate for the appointment to take effect.2Michigan Legislature. Michigan Compiled Laws 700.3206 – Estates and Protected Individuals Code (Excerpt) A declarant can also name a successor who steps in if the first representative declines, becomes incapacitated, or is removed.3Michigan Legislature. Michigan Compiled Laws 700.3206a – Designation of Successor Individual as Funeral Representative
Without a written designation, the statutory list controls, and the person it points to may not share your views on water cremation. That is the single biggest reason to put wishes in writing.
The Paperwork Before the Process Can Start
The funeral director who first takes custody of the body must obtain an authorization for final disposition within 72 hours of death or the finding of a body. The form is prescribed by the state registrar and must be signed by the local registrar or the state registrar.4Michigan Legislature. Michigan Compiled Laws 333.2848 – Authorization for Final Disposition of Dead Body or Fetus
Here is the step families often do not expect. When the disposition is cremation, the county medical examiner where the death occurred must also sign the authorization.4Michigan Legislature. Michigan Compiled Laws 333.2848 – Authorization for Final Disposition of Dead Body or Fetus Because alkaline hydrolysis follows the cremation permitting pathway, that sign-off applies. The funeral home handles the request, but it can add a day or two, longer in counties where the medical examiner’s office is backlogged.
The body cannot be moved from the place of death until the disposition permit has been issued, with one exception: it can be moved for preparation or transport to the funeral home with the consent of the physician or medical examiner certifying the cause of death.5Michigan Legislature. Michigan Compiled Laws 333.2848 – Authorization for Final Disposition of Dead Body or Fetus The funeral director keeps the permit for at least seven years.
A funeral planning declaration you signed while alive can document your wishes, but it does not replace the authorization. The declaration records intent; the authorization is the legal permit to proceed. You need both working together.
What the Process Looks Like and What Comes Back
The body is placed in a stainless steel vessel, where water and potassium hydroxide are heated under pressure. Heat, alkalinity, and gentle water flow break down soft tissue over several hours. Processing generally runs from about four hours on the faster end to sixteen on the slower end, depending on equipment and the size of the body. Embalmed bodies take longer than unembalmed ones.
Unlike flame cremation, pacemakers and other heat-sensitive implants do not need to be removed in advance. After the cycle, metal implants like titanium joints, plates, and screws are separated from the bone remains and typically sent to recyclers that reclaim cobalt and titanium alloys.
The bone fragments are dried and processed into a fine powder. The appearance is similar to flame-cremated remains, but the volume is roughly 30 percent greater, so you may need a slightly larger urn. No soft tissue or DNA survives. The sterile liquid byproduct is discharged to the local wastewater system under federal, state, and local rules, with pH brought to at least 11 before discharge.
Most funeral homes coordinate the whole arrangement and return the remains to the family within one to two weeks, depending on the facility’s schedule and the medical examiner authorization timing.
What It Costs
Alkaline hydrolysis typically costs more than flame cremation, though the gap has been narrowing. A standard water cremation in the United States generally runs between $2,500 and $4,500, roughly $500 to $1,000 more than a comparable flame cremation. A direct water cremation with no viewing or formal service runs about $1,000 to $1,500. A full-service arrangement with visitation and ceremony can reach $5,000 or higher.
Michigan pricing depends on the provider and what the package bundles. Every funeral home is required by federal law to provide a general price list with its basic professional service fee, facility costs, and transportation charges itemized separately. Ask for the itemized list from each provider you are considering and compare line items, not package totals. If you are prepaying, confirm the funeral home either operates its own alkaline hydrolysis equipment or has a firm arrangement with a facility that does, so the plan you buy is the plan your family can actually use.
A Note on Religious Views
Not every religious tradition has issued formal guidance on alkaline hydrolysis, and views vary. The Roman Catholic bishops of Missouri have publicly opposed it, urging the faithful to avoid the process except in emergencies such as a public health crisis. If religious observance matters to your family, talk to your clergy before making the arrangement.
Making Sure Your Wishes Are Followed
You can record a preference for alkaline hydrolysis in a funeral representative designation, a patient advocate form, or a will. Of those, naming a funeral representative in writing and stating your disposition wishes explicitly is the single most effective step. It puts the person you trust at the top of the statutory priority list and gives that person documentation to show the funeral home. Without it, the default order controls, and the choice may not go the way you wanted.