The ATCO Licensing Review Task Force (ALRTF) set up by the EATM Human Resources Team (HRT) developed this document as guidance for ECAC Member States introducing a competence assessment scheme. The first edition of the document outlined the process for developing a competence assessment scheme from the selection of competence assessors, to the conduct of competence assessments to record keeping. This 2nd edition of Guidelines for Competence Assessment provides a more comprehensive analysis of the subject by offering guidelines for the development of performance objectives and additionally includes guidance for the competence assessment of On-the-Job-Training Instructors (OJTIs) and Competence Assessors.