How does a product tag pass to a second owner?
Nothing has to change, and that is the point: the passport describes the product rather than the person, so it travels with the object. What needs care is everything that was attached to the first owner, and the rule that a new passport for the same product links back to the original.
The passport travels with the product
A product passport is about the product. regulation (EU) 2024/1781 ties it to the item, the batch or the model, requires it to stay available for the period the delegated act sets, and adds that it must remain available even after an insolvency, a liquidation or a cessation of activity of the operator that created it.
Nothing in that is tied to a buyer. A second owner taps the same tag, reaches the same passport, and is one of the customers the regulation names among those with access rights.
Which means the resale case needs no mechanism at all, as long as the tag was written with an address that survives, which the availability page covers.
What the first owner left behind
The problem is never the passport, it is everything a brand attached to the first sale. A registration record, a warranty account, a personalised page, a name in a greeting.
A tag that resolves to a page saying whose product this was has published that to whoever buys it next, and to anyone in between who taps it. The landing page page and the personal data page both land on the same rule from different directions: what a tag leads to is public to everyone holding the object.
So the account belongs behind a sign in, the public page belongs to the product, and the two are separate destinations even when one identifier reaches both.
When a new passport is created
Refurbishment and remanufacturing can produce a product that is, formally, a new product. The regulation anticipates it: where a new passport is created for a product that already has one, the new passport must be linked to the original.
The chain is therefore explicit rather than a replacement, and a second owner can see what the object was before. For the tag, that is a question of whether the refurbisher rewrites it, adds one, or leaves the original in place, and the act for the group and the identifier scheme decide, not the hardware.
Designing for the handover
Assume a second owner from the first line of the specification. The product will be sold, given away or inherited, and the tap has to behave for a stranger.
Let an owner detach their account from the identifier, because the alternative is a support ticket for every resale, and a page that still greets the previous owner months later.
Do not make the tag the key to the account. A tag can be read and copied by anyone holding the product, so an account that a tap unlocks is an account that the object unlocks, which the cloning page covers.
And keep the public side of the identifier worth reaching: what the product is, what it is made of, how to repair it. That is what a second owner taps for, and it is the same content the recycler page describes for the end of the chain.
Frequently asked questions
Does the passport transfer to the new owner?
It never belonged to the old one. The passport describes the product and travels with it, and the regulation names customers among those with access.
What about the first owner data?
That is the brand account rather than the passport. It belongs behind a sign in, and an owner should be able to detach it at resale.
What happens when a product is refurbished?
Where a new passport is created for a product that already had one, the regulation requires the new passport to be linked to the original.
Can the second owner rewrite the tag?
On an unlocked tag, physically yes. That is an argument for locking the address and keeping everything changeable on the server.