External oversight and control bodies are key actors for safeguarding integrity and hold public sector organisations to account. Their actions can promote organisational learning but must also, when necessary, sanction misconduct. Adequate legal safeguards for the independence of these bodies is a precondition for effective oversight. The responsiveness of these bodies is another core feature, including the functionality of complaints handling systems and open and risk-based interaction with state and non-state actors. Desired outcomes include a high level of implementation of the recommendations by oversight bodies, efficient court procedures, a low rate of revolving doors for regulators, and generally positive public perception.NThe indicators measure the state of play for the norms establish in Priniciple 12 of the OECD Council Recommendation on Public Integrity. They focus on what matters most for the public integrity system and do not cover all areas relevant for the general effectiveness of oversight bodies, such as their remit, internal quality assurance, and human resource management. Data collection is scheduled for 2022.