Any retired person or pensioner can ask for this card, regardless of how old they are, so long as their average household income (total income of all the people living together) is no higher than the national minimum wage.
CP Services: Lisbon urban trains | Oporto urban trains | Coimbra urban trains | Alfa Pendular | Intercidades | Regional and InterRegional
You can ask for the card at any CP ticket office by completing the CP Card and the 'Cartão Dourado' form and say how many people are in your household, duly certified by the local civil parish (on the back).
When you ask for the card, you have to give an original colour photograph and show the originals of:
Apart from presenting the originals, you also have to deliver copies of all the documents except the ID document.
The card has a fixed requisition price of €3.00 and it is valid for six years.