The fellowship program is funded by grants, contracts and cooperative agreements. There are about 25 agreements in an average year. The rules governing travel and expenditures are applied to fit the global criteria of the overall program in order to maintain compliance.
Every agreement is cost reimbursable, which means AAAS pays the fellows first and then the costs are reimbursed. Although the funding is obligated to the program, the funds remain with the government until AAAS submits a request for payment.
Any changes, additions, or reductions must be initiated by the federal agency (office and contracts) and submitted to AAAS for implementation.
The funding is at all times at the discretion of the agency.