This deliverable describes a practical process called .CHAMP. (Collaborative and Harmonised Air Traffic Controller Manpower Planning). The CHAMP process promotes a process to bring people together to understand the long-term impact of Air Traffic Controller (ATCO) Manpower Planning (MP) decisions using the LAMPS (Long-term ATCO MP Simulation) tool. The LAMPS tool models and simulates over a fifteen-year timeframe the variables influencing the number of ATCOs available and required. The key benefit of introducing the LAMPS/CHAMP approach in an Air Navigation Service Provider (ANSP) is that it provides a framework to recognise signs of changes and to evaluate their impacts for ATCO MP. In the longer term this should lead to improved decision-making on ATCO MP issues, and should alleviate experiencing peaks and dips in the number of ATCOs available and required. The main users of this document should be manpower planners, Human Resources (HR) managers, training managers and Operations.