Here is a constraint that quietly shapes the entire procedure: bulk liquid nitrogen is not allowed on commercial aircraft, and a vitrified patient still has to reach a facility in Rafz, Switzerland. So before any of the science matters, cryonics has to solve a deeply unglamorous problem. How do you move a legally dead person, cold and on a clock, across European borders, through customs, and past the very specific body of law that governs what you may do with human remains? The medicine is only half the discipline. The other half is logistics and paperwork, and getting either one wrong can undo the work the surgical team just did.
The ambulance is, legally, a funeral vehicle
Start with the vehicle. A biostasis standby ambulance carries medical equipment and does medical-looking work. But the law does not recognize a category called "cryonics patient." The moment a physician declares legal death, the person becomes a deceased body in the eyes of every European jurisdiction. The movement of deceased bodies is tightly regulated. So the standby ambulance is registered as a funeral vehicle. That is not a loophole. It is the honest legal description of what it is doing. It is also what lets the team cross borders with a patient. Otherwise they get stopped at every frontier as something the rulebook has no entry for.
This is also why the legal framework for cryonics in the EU matters as much as the cryobiology. A patient who is preserved beautifully but stuck at a border because the transport paperwork is wrong is a patient losing time, and time is ischemia.
Funeral homes are partners, not competitors
Tomorrow.bio bases standby teams in Berlin and Amsterdam, but members die where they live, which is often neither place. Bridging that gap is where local funeral-home partners come in. Established funeral directors already hold the licenses, the documentation, and the cross-border death-transport know-how that the law requires, and they operate everywhere. By partnering with them, a cryonics provider reaches members far outside its home cities. It can handle local registration of death correctly and arrange compliant transport. The alternative is building an undertaking license in every country at once. The funeral industry has spent a century solving the legal problem of moving the dead. There is no reason to reinvent it.
Why liquid nitrogen cannot fly, and what that forces
Now the physics constraint that bends everything else. Long-term storage happens in liquid nitrogen at -196°C, but liquid nitrogen is a cryogenic hazard and is effectively barred from commercial passenger flights. You cannot simply put a patient in a nitrogen-filled dewar and book cargo space across an ocean. That single fact dictates the shape of intercontinental transport.
For shorter, ground-based moves within Europe, a patient can travel cold and on dry ice, around -79°C. That is far warmer than storage temperature. It is still cold enough to keep chemistry crawling for the duration of a road journey to Switzerland. For longer distances, especially intercontinental ones, the answer is to do the hard chemistry early. The standby team performs field cryoprotection on-site, perfusing the patient with cryoprotectant close to where they died, rather than waiting to reach the facility. This is the central logistics insight of the field: move the procedure to the patient, not the patient to the procedure.
Field cryoprotection buys back the distance
The reason field cryoprotection matters so much is that it decouples preservation quality from travel time. If the patient is perfused and cooled near the place of death, then the long flight or drive that follows is happening to an already stabilized, cryoprotected body rather than to a degrading one. The ischemic damage is largely capped before the journey starts. A patient can be washed out and cooled in the field, then shipped on dry ice to the storage facility. That patient survives a long trip in far better condition. The alternative is transport warm, perfused only on arrival.
That said, none of this makes speed optional. Field cryoprotection reduces the penalty of distance; it does not erase it. Dry-ice temperatures still allow slow degradation, every customs delay is still time on the clock, and the goal remains the same as it was during first response: minimize the total ischemic interval. The logistics exist to make a long journey survivable, not to make it free.
Why a European base changes the math
All of this is easier from inside Europe than across the Atlantic, which is much of why a European provider changes everything for European members. A patient in Germany or the Netherlands faces a ground transport to Switzerland measured in hours, not an intercontinental shipment fighting time zones, customs regimes, and the no-fly status of liquid nitrogen. Proximity to the Rafz facility is not a marketing point; it is a direct reduction in the ischemia budget for everyone the standby teams can reach by road.
Moving a cryonics patient is a legal and logistics problem wearing a medical coat. Register the ambulance as a funeral vehicle. Lean on funeral-home partners. Do the cryoprotection in the field. And never forget that the clock is still running.