CSCS cards provide proof that individuals working on construction sites have the appropriate training and qualifications for the job they do on site. By ensuring the workforce are appropriately qualified the card plays its part in improving standards and safety on UK construction sites.

Holding a CSCS card is not a legislative requirement. It is entirely up to the principal contractor or client whether workers are required to hold a card before they are allowed on site. However, most principal contractors and major house builders require construction workers on their sites to hold a valid card.