Codice della Prefettura di emissione

This code identifies the specific prefecture (a regional administrative office in Italy) where the license was issued.


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Note added at 1 hr (2024-07-10 16:02:50 GMT)
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or "Issuing Prefecture"

In Italian it's short for "Codice Prescrizione" and it refers to the codes introduced by the EU Directive 2015/653 which indicate the kind of modifications have been made on a vehicle, for example to facilitate the driving for disabled people: here are some examples, the complete list can be found in the first link below
VEHICLE ADAPTATIONS 10. Modified transmission 10.02. Automatic selection of gear ratio 10.04. Adapted transmission control device 15. Modified clutch 15.01. Adapted clutch pedal 15.02. Hand operated clutch 15.03. Automatic clutch 15.04. Measure to prevent obstruction or actuation of clutch pedal 20. Modified braking systems 20.01. Adapted brake pedal 20.03. Brake pedal suitable for use by left foot 20.04. Sliding brake pedal 20.05. Tilted brake pedal 20.06. Hand operated brake 20.07. Brake operation with maximum force of … N(*) (for example: “20.07(300N)”) 20.09. Adapted parking brake 20.12. Measure to prevent obstruction or actuation of brake pedal 20.13. Knee operated brake 20.14. Brake system operation supported by external force 25. Modified accelerator system 25.01. Adapted accelerator pedal 25.03. Tilted accelerator pedal 25.04. Hand operated accelerator
In UK his code is probably indicated in the V5C and/or the driving licence.