In order to start a committee, you must have at least two members (a chair and a vice chair).
If your committee proposal is accepted by the E-Board, the committee will be in the "formation" stage. During this stage, the chair and vice chair will be responsible for seeking out at least two more members for their committee. E-Board members will be more than happy to help find these additional members.
Once your committee has four members, you will receive final approval and can start working on projects.