Depending on level in the construction workplace, there are various CSCS cards available. Each card related to the construction industry shows you have the right qualifications and you are capable enough in performing relevant professional tasks. And when it comes to Red experienced workers card, it is actually a card for all those who possess experience and are registered to complete a construction related NVQ or SVQ. The Red Experienced Worker Card is temporary and once after the completion of NVQ candidates get upgraded to the blue skilled worker card. It has validity of 1 year and cannot be renewed.