The global responsibility of the Mission success - including the costs and the calendar, in accordance to ESSP rules - is the NASA Principal Investigator (PI) responsibility, assisted by French (IPSL) and American (Hampton University) Co-PIs.

The project conduct itself is done by a NASA-CNES integrated project team, the Mission Management Team. This team is responsible for the Mission conduct and the planification from beginning to end, and is the ESSP Project Office interlocutor, in charge of the precursor Earth observation scientific programs for the NASA.
It is composed of a NASA Project Manager in charge of all the project, assisted by CNES, Ball, NASA project manager assistants, in coordination with the PI (NASA) and the Co-PIs (IPSL and Hampton university).

The project high level managing is done by the Joint Steering Group (JSG), for the Mission direction, and by the Mission Advisory Group (MAP) for the project general progress.

The Mission Advisory Panel (MAP) does the global supervision for the project course. It is composed of the Langley Center manager, the CNES Orbital Systems manager, the Ball Aerospace vice-president, the IPSL manager, or their representatives, with possible invitation of nominated observers. The MAP will verify the project progress, will verify that the supply schedules are respected for the PIs and project responsibles, and to resolve realization conflicts that the project team couldn't solve.

The Joint Steering Group (JSG) function is to define the main project "programmatic" orientations or re-orientations. It is also able to make decisions to solve issues that the MAP couldn't solve. It is composed of an equal number of representants nominated by each part, it will be co-preside by the Administrator associated for the Earth sciences, of the NASA, the CNES assistant manager for the Earth sciences, and will include the INSU manager. This comity will meet upon demande of one of them.

For the scientific managing, all the principal Investigators is grouped in a Science Team. This group is managed by the scientific project responsible D. Winker (NASA) assisted by its two Co-Investigators, P. Mc Cormick (Univ. Hampton) and J. Pelon (IPSL). He helps the project for the mission scientificfacet definition.

Finally, an international scientists group, the International Science Advisory Panel (ISAP), makes an independant evaluation of the scientific objectives, the scientific progress obtained, and contributes to a large spreading of those progress in an international context.