Abstract: A method for manufacturing a plurality of plug-in cards (25) from a card body (6), preferably on a standard sized, ISO 7810, ID1 type, the method comprising the steps of defining said plug-in cards (25) on the card body (6) and making at least one score line (19) on the card body to define the same plurality of similar plug-in support cards (33) each comprising a single plug-in card.