The EU regulation 73/2010 (laying down requirements on the quality of aeronautical data and aeronautical information for the single European sky) , also known as ADQ, is being implemented in Europe. This course aims to provide stakeholders with the necessary understanding, tools, and experience to proceed with this challenging task. The course will interest all actors involved in the aeronautical data chain, from data originators to regulators involved in overseeing the rule implementation. It covers the rule, the means of compliance, metadata, data sets, data exchange and distribution, data quality as well as formal arrangements, automation, and many other topics like conformity assessment and institutional aspects. It concludes with the latest developments and the ADQ implementation plan.Lessons learned from the field will be brought into the course with implementers coming to share their experience. The course features exercises and an examination.