Open ocean swell under a clear sky more than three nautical miles offshore, the setting where a biodegradable sea burial urn is released

What Kind of Urn Can You Use for a Burial at Sea?

Almost every family planning an ash scattering reaches the same question once the date is set: what do we put the ashes in? Three different federal bodies have a say in the answer, and they do not say the same thing.

For scale, the EPA's published summary counts 2,544 burials at sea reported under the MPRSA in 2020. Florida departures accounted for 932 of them, Oregon 833, New Jersey 329, California 162 and New York 132. Every one of those families had to decide what the remains travelled in.

You can use a container. It just has to fail in the right way.

The EPA authorizes burial at sea of cremated human remains under a Marine Protection, Research and Sanctuaries Act general permit, published at 40 CFR 229.1. That permit allows ashes to be placed at sea inside a container rather than released loose on the surface. The agency sets three conditions: the container must not contain plastic of any kind, it must not float, and it must not otherwise contribute to marine debris. Ideally, the EPA adds, it should degrade or dissolve in a relatively short period of time in the marine environment.

Read that list again, because the emphasis is not where most shoppers expect. Nothing in the rule asks the urn to be beautiful, expensive, or purpose-built for the ocean. It asks the urn to disappear.

Why the container option exists at all

Releasing ashes over the rail looks simple in a photograph. On the water it depends entirely on wind, and wind on the day of a service is not something anyone controls. The EPA acknowledges this directly: scattering on the sea surface may not be appropriate due to wind conditions or for other reasons, and in those cases the ashes may be placed at sea in an acceptable container instead.

That is the practical case for a water-soluble urn. It is not decoration. It is the version of the ceremony that still works if the breeze turns.

Plastic is the part that trips families up

The prohibition is absolute and applies to every component, not just the shell. The problem is rarely the urn itself. It is what came with the ashes.

Crematories commonly return cremated remains in a sealed plastic bag inside a temporary container. If that bag goes into the water, the container has contributed plastic to the marine environment regardless of what the outer urn is made from. The bag has to come out first. Ask whoever is handling the remains to confirm what the inner liner is made of before the day of the service.

The same logic applies to fasteners. In its casket guidance the EPA specifically warns against plastic-containing adhesives like tape. A paper or plant-fiber urn sealed with packing tape is not a plastic-free container.

The Navy's answer is narrower than the EPA's

If the person served, there is a second rulebook, and it is more specific about the urn than the EPA is.

The U.S. Navy runs its own burial at sea program for members and retired members of the uniformed services, former members who were honorably discharged, civilian marine personnel of the Military Sealift Command, and dependents of members and former members. Its instruction on containers is short: cremated remains must be in an urn or temporary container, preferably spun brass or biodegradable, to prevent spillage in shipping. The Navy notes that the discharge of plastics at sea is prohibited, and encourages families to have the remains placed directly into a sturdy biodegradable urn at their local funeral home rather than transferring them later.

So for a Navy burial, no plastic is not only about what happens in the water. It is also about surviving the mail. The Navy authorizes only Priority Mail Express for shipping cremated remains to a port of embarkation, and recommends tracking with signature on delivery.

Two details surprise families more than the container rules do. The committal is performed while the ship is deployed, so family members are not present. And the Navy puts the average time at 12 to 18 months from when the remains arrive at the port of embarkation. The commanding officer notifies the family of the date, time, and the latitude and longitude after the service has been completed.

You do not have to buy the urn from the funeral home

This is the part families most often do not know, and it comes from a third agency entirely.

The FTC Funeral Rule, at 16 CFR Part 453, bars a funeral provider from requiring you to buy goods or services you do not want in order to get the ones you do. A provider may charge for three things: the one non-declinable basic services fee, the goods and services you actually selected, and items required by law or by the cemetery or crematory. That is the complete list.

The FTC states the consequence plainly for caskets: a provider cannot charge an additional fee or surcharge to consumers who purchase a casket elsewhere, and the agency describes such a fee as a hidden penalty on people who exercise the right to buy from another seller. The worked example names caskets, but the three-category limit on allowable charges is not written to be casket-specific. If a provider proposes a handling surcharge on an urn you bought yourself, a reasonable question is which of those three categories it falls into.

Related, and useful if the plan is direct cremation before the ceremony: a provider cannot tell you that state or local law requires you to buy a casket for a direct cremation, and must make an alternative container available and disclose that it exists.

There is no such thing as an EPA approved urn

You will see the phrase on product pages. It is worth understanding what sits behind it, which is nothing.

The EPA guidance sets conditions a container has to meet. It does not run an approval program, publish a list of acceptable products, certify manufacturers, or inspect anything before a ceremony. There is no federal seal for urns. A seller describing a product as EPA approved is describing their own reading of the conditions, not a designation the agency granted them.

That is not a reason to distrust every seller. It is a reason to ask what the phrase means on that specific listing, and to get the material list rather than the label.

Shape is not the issue. Behavior in water is.

Urns shaped like sea turtles, birds, ships and shells are widely sold for water ceremonies, and families search for them by name. The shape has no bearing on whether the urn is allowed. Two properties do: what it is made of, and what it does when it hits the water.

One product category deserves a flag. Some urns are designed to float for a period and then sink, so mourners can watch the vessel drift before it goes under. That design sits against the plain text of the EPA condition that the container must not float. If you are considering one, ask the seller how they reconcile it with 40 CFR 229.1, and if the answer is vague, contact the EPA regional office for the area you are sailing from before you commit.

What to ask before you buy

  • What is every part made of, including the lid, the liner, and any decorative element?
  • Is there any plastic anywhere in the product?
  • Does it sink, and how quickly?
  • How is it sealed or closed? Tape, glue, a cord, or friction fit?
  • Is there a metal plaque, hinge, or clasp attached?
  • If this is a Navy burial, is it spun brass or biodegradable, and will it survive shipping?

If a seller cannot answer the first two questions in plain language, that is your answer.

Full-body burials follow a different set of numbers

Everything above concerns cremated remains. A full-body burial is a different preparation problem, and the EPA is far more specific about it.

With no casket, the agency recommends a natural fiber shroud with added weight such as a steel chain, to aid rapid sinking. With a casket: remove plastic materials, consider a metal casket of the type the Navy uses, drill a minimum of twenty 2-inch holes across the top, bottom and both ends so the casket floods and vents air, cover those holes with a porous material like cloth or paper rather than plastic-containing adhesives, add sand or concrete but not lead to reach a total of at least 300 pounds with the foot end heavier, and band it with at least six stainless steel bands, chains or natural fiber ropes. The EPA warns that commercial shipping straps deteriorate rapidly in seawater and should not be used.

Those figures come from the Navy casket preparation guidelines, which the EPA reproduces. Note also that only the ports of Norfolk, Virginia and San Diego, California are authorized to accept casketed remains for a Navy burial at sea.

The rest of the general permit, briefly

The same general permit draws the three nautical mile line, excludes pets and other non-human remains, rules out monuments and artificial reef structures, and requires a report to the EPA within 30 days even though nothing is filed beforehand and no fee is charged. We walked through those in what the federal rules actually say about pets at sea.

One item from that list belongs here, because it governs what goes in the water alongside the urn. Flowers and wreaths may be placed at the site only if they are readily decomposable in the marine environment. Plastic flowers and synthetic wreaths are held to the same standard as the container.

Sources

Requirements change. Check each source for the current text before you finalize arrangements.

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