Families rarely plan for this part. Someone passes away in Utah and is buried in Ohio. A cremation is arranged in one state and the family plot is in another. A daughter in Tooele wants a small portion of her mother sent to a brother in Germany. The service happens here while half the family is three time zones away and cannot travel. Suddenly a question that never came up before is sitting on the kitchen table. How do you get someone home.
Shipping cremated remains is legal, it is routine, and there is exactly one right way to do it. The rules are stricter than most people expect and they changed recently, so guidance written a few years ago is now out of date. Here is how the process actually works.
Only One Carrier Will Accept Cremated Remains
The United States Postal Service is the only carrier in the country that will move human ashes. UPS and FedEx both prohibit human remains in their published terms, and handing a package over without disclosing what is inside does not make it allowed. It makes it a shipment that can be refused, delayed, or lost with no recourse.
The Postal Service accepts them under one service only. Priority Mail Express domestically, and Priority Mail Express International for anything crossing a border. Ground services, First Class, and standard Priority Mail are not options. The reason is tracking. Priority Mail Express is scanned at every handoff, which means the package is never sitting somewhere unaccounted for.
The Rule Changed in March 2025
For years, families packed their own box and applied a sticker called Label 139 to every side. That system is gone. Since March 1, 2025, USPS cremated remains shipments must travel inside a specific box, the Priority Mail Express Cremated Remains box, which carries the required markings printed directly on the packaging.
You cannot buy it at a retail counter as an afterthought or substitute a box you already own. Order the free cremated remains kit from the Postal Store at usps.com, or check whether a nearby Post Office stocks it. Plan for a few days of transit on the kit itself, which is the step families most often forget when there is a memorial date on the calendar.
The kit arrives with a Priority Mail Express Cremated Remains box, a roll of Priority Mail Express tape, a self-sealing plastic bag, bubble cushioning, and a printed copy of Publication 139. Each order allows up to five boxes.
What Goes Inside the Box
The outer box is only half of the requirement. The inner container matters just as much, and this is where mistakes happen.
The vessel inside must be siftproof. A siftproof container is one that loose powder cannot escape from, no matter how the box is handled or how many times it is flipped over. The temporary plastic vessel that comes home from a cremation usually qualifies. A cremation urn with a threaded lid usually qualifies. A decorative urn with a loose lid, a fabric pouch, or a lidded box that simply rests closed does not.
Seal it, then bag it. The siftproof container goes inside the self-sealing plastic bag included with the kit. The sealed plastic bag is a second line of defense, and it is required for a reason. Cremated ashes are fine and abrasive and they find every gap.
Cushion everything. Wrap it in the bubble padding so nothing shifts. Anything that rattles in the box can crack in transit.
Put the addresses inside too. Write the sender and recipient address on a slip of paper and place it in the box before sealing. If the outer shipping label is torn off in transit, that slip is how the shipment gets where it is going instead of into a dead mail facility.
Seal with the right tape. Use the Priority Mail Express tape from the kit across every seam.
Paperwork and Proper Documentation
For a domestic shipment, USPS does not require you to show anything. Even so, proper documentation belongs in the box. Include a copy of the death certificate and a copy of the cremation certificate from the crematory. Cemeteries, receiving funeral homes, and foreign customs officials all ask for them, and the person on the other end should not have to chase paperwork during the hardest week of their life.
Ask the crematory for the cremation paperwork at the same time you collect the remains, since it is far easier to gather everything in one visit. Send copies and keep the originals. Certified copies are easier to request while an estate is still open than a year later.
International Shipping Has Extra Steps
International shipments follow the same packing rules with more paperwork on top.
Start with the destination country. Not every country accepts human cremated remains through the mail, and the ones that do often have their own conditions. The International Mail Manual and its Individual Country Listings on the USPS website are the authoritative source, and it is worth reading the entry for that country before you buy anything.
International shipping requires a customs declaration that names the contents plainly as cremated remains. Do not describe the shipment as a gift, a memento, or merchandise. Attach the death certificate and cremation certificate, and check whether the receiving country wants a consular document or a translated form. Priority Mail Express International is the only accepted service, and for international mailing the funeral urn itself serves as the inner container.
Small Portions, Jewelry, and Pet Ashes
The rules cover more than a full portion. Shipping cremated remains applies whether the box holds a complete cremation urn or a fraction of an ounce.
Divided portions come in many forms. A bronze stem keepsake urn on a shelf, an athenaeum pewter keepsake urn passed to a sibling, and a classic raku keepsake urn kept by a grandchild each hold a small amount of cremation ashes, and each still has to travel by the same method. Cremation jewelry holding a pinch of ash follows the rule as well. So does a portion sent to an artisan who will work it into glass or stone.
Pet cremation is common now, and pet ashes fall under the same requirements. Families are often surprised by that, but USPS applies the packaging and service rules to animal remains the same way.
Costs, Timing, and Tracking
Priority Mail Express pricing depends on weight and destination, so a full-size vessel costs more to send than a small divided portion. Every Priority Mail Express shipment includes one hundred dollars of insurance, and additional coverage is worth considering.
Domestic delivery is usually one to two days. International timing varies widely once a parcel reaches customs in the destination country. Give yourself margin. Anyone planning a burial, an interment, or an ash scattering around a shipment should build in a cushion of days rather than hours, and should confirm the box arrived before finalizing travel.
Follow the tracking. Watch for the delivery scan. Tell the recipient the tracking number so a package holding a person is never left on a porch.
When Mailing Ashes Is Not the Best Option
Mailing cremated remains is not the only path. Families flying to a service can carry the remains in a carry-on bag. TSA requires that the container pass through the X-ray scanner, and officers will not open it for any reason, even if you ask them to. Wood, plastic, and cardboard containers screen cleanly. Solid metal, stone, and thick ceramic often do not, which is why a simple travel vessel for the flight and a permanent urn at the destination is a common approach.
Driving is perfectly legal too. Utah does not require a permit to transport a loved one’s ashes across state lines by car.
And when the sender is uncertain, a funeral home can handle the entire process. Funeral directors ship cremated remains regularly, and having a professional pack the box and complete the forms removes the risk from a task nobody wants to get wrong.
Mistakes That Cause Real Problems
Using a shipping service other than USPS. The shipment is prohibited before it leaves the counter.
Using your own box. Since 2025 the USPS cremated remains box is mandatory, not preferred.
Choosing a beautiful container over a secure one. A decorative lid that lifts off is not siftproof, no matter how lovely the piece is.
Skipping the internal address slip. It is thirty seconds of work that prevents the worst possible outcome.
Guessing on international rules. One entry in the International Mail Manual can save a family from a package sitting in a customs warehouse overseas.
We Can Handle This For You
Dalton-Hoopes has served Grantsville, Tooele, Stansbury Park, and the surrounding communities since 1979, and cremation is a large part of the care we provide. If you need help shipping ashes to family in another state, sending a portion overseas, or simply deciding whether mailing ashes is the right call at all, we will walk you through it or take care of it entirely.
Reach us anytime at daltonhoopes.com/contact-us/. There is no wrong question, and no family should have to figure this out alone.