This article is based on the results of Leonardo TOI project, +APL - More flexible VET systems based on the assessment of prior learning. Some of the specific aims of this project were, testing and evaluating RVCC (Recognition, validation and certification of competences) methodology and tools in each partner country (Poland, Italy, Bulgaria, Germany and Spain) through a pilot session, and developing a guideline to boost the transferability to other European countries of RVCC methodology and tools as an APL innovative model. To succeed in this each partner country has accomplished a national pilot session with VET teachers/ trainers/guidance professionals and has compiled a national pilot feedback and evaluation report. The national reports led to the development of a common guideline based on national piloting experiences with the aim of boosting the transferability to other European countries of RVCC methodology and tools as an APL innovative model for future APL professionals. From national pilot evaluation reports have come relevant recommendations and indications as considerations about the methodology to build and train the future APL Staff, the interaction between various organizations involved and stakeholders, the organization of the whole APL process (human resources, financial issues, centralized/decentralized etc.), the reception and comprehension of the tools by people working in the field and, finally, the possibilities of implementation at local, regional or national level.