Driving the dual transition paradigm, combined with demographic dynamics in Europe, urges a re-thinking of the VET system to adjust current job and skill profiles to new frameworksBeing short-term, small educational pieces, micro-credentials deliver targeted learning and flexibility while at the same time assessment of learning outcomes and certification of knowledge at the end of the process.Despite the obvious benefits from introducing micro-credentials, there are still many open questions for their implementation in Europe. The identification, development, testing and assessment of innovative policy approaches is needed for ensuring mutual application of micro-credential in all Europe. For supporting this process, MASTERY will focus on the following objectives: •To develop micro-credentials approaches for improving life-long learning options in industry •To pilot actions for testing solutions on ground•To produce policy recommendations for transnational application of micro-credentials thus ensuring portability and flexibility The main sectors involved in the piloting phase will be the Wood, Agrofood, Building and Manufacturing. At least 3 key green skills in each selected sector will be processed with the micro-credentials process. The 13 pilot target will involve at least 100 workers or students (5EQF) coming from Italy, Spain, Finland, Bulgaria and Belgium. The piloting phase will be supported by pilot groups, i.e. multi-actor groups representing training institutions, the labour market, both public and private sectors, called upon to consolidate the micro-credential release experiences.The impacts MASTERY intends to achieve are (1) boosting the green job opportunities, through the recognition of micro-credentials enabling upskilling and reskilling pathways (2) providing faster responses to the skills needs identified by employers and (3) enhancing the flexible qualification and retraining according to labour market needs