Historical vehicle ownership data

under GDPR he can request HIS data.

previous owners are NOT his data so has no right to access this data.

His data, not his cars

Apologies, I misread "your car registrations" as "your cars registration". I don't see why you wouldn't be entitled to a list of your own cars - presuming it exists in a central database.

Probably a good stating point for you OP:

To request access to NVDF data please follow the instructions below:

1. Requests for access to NVDF data should be sent to dataanalytics@transport .gov.ie.

2. When DoT receives a request for data sharing for the NVDF, a form is sent to the requestor asking for details of the fields required and for the legal basis (if personal/sensitive data).

3. DoT will check if the requested data is available. If not, the requester is informed and the process ends.

4. If the data is available and is classified as open or non-personal data, the requester is directed towards published open data or is provided with the data.

5. If the requested data is personal or sensitive then DoT will verify the legal basis provided

6. If there is no legislative basis for the data then the requestor may discuss other options or DSGA if they wish, but the process ends here and a new process can begin.

7. If there is a legislative basis, then DoT will then deliberate on whether the data is appropriate to be provided.

8. If appropriate, the requestor will be asked to provide a detailed DPIA which DoT data governance board and DPU will consider.

9. No data will be provided until the legal basis and DPIA have been signed off by the DoT data governance board.

10. If after reviewing the form, access to the data can be granted, then a Data Sharing Agreement (DSA) is drafted and agreed.

Clearly it's official proof being sought, and not just his own notes.

No, but the wonders of computers you see, they can link things.

You have you, in your name at your address with a PPS number.

The same name at the same address buys a car, computer automatically links car to the PPS number, simple. Even a vague address, the name will guide them to the right address, just like the postman figures it out delivering the logbook.

We now have online transfer of ownership for the public, which requires a PPS number, linked again.

I think you are making it up as you go along! The online process is new and optional.

The standard transfer of ownership process does not collect a PPSN, and there is little validation criteria of the entry, which is administered by the department of transport (not finance).

It is also important to consider that the registered owner of a vehicle is not necessarily the legal or beneficial owner, so there are limitations as to the data’s value from a revenue perspective.

John Joe does not tend to register cars or employment.

I know precisely 0 John Joes.

Regardless once people move into the working world and out of the family home, claim hap, fis, opfp, or a myriad of other things the net closes, pay the tax online, insure it (driver number), you think thats only shared to the mobilty app? tax it, the email address, the card holder details.

They know more about you than you do yourself.