The European Year of Skills puts the importance of having a skilled workforce to support the green and digital transitions in the spotlight. Having skilled and knowledgeable citizens is not just a matter of formal education (e.g. schools and universities). It is also critically dependent on learning acquired in non-formal or informal contexts, such as at work or during leisure time. Validation is a tool for citizens to demonstrate the skills they have acquired in these contexts. It facilitates obtaining qualifications, access to training, and job market entry.