The manual consists of three parts: Part 1 is focusing on theory with the main concepts introduced, presenting the developed set of Quality Indicators (QA), Indicators Model (QM) and Quality Assurance Framework (QAF). Part 2 focuses on practical aspects of implementation of Quality Assurance within the institution. References and glossary of terms constitute Part 3. This material has been developed for career services managers and consultants, youth workers and trainers. The manual could be also valuable for Quality Assurance bodies like Quality Assurance agencies and institutions in the field of career guidance and particularly in the youth career services. The manual also pays special attention to Quality Assurance of the guidance services provision to youth with fewer opportunities (YFO).