Once an application has been approved by the board and included in the State Librarian’s request to the committee, the amount of funding to be provided to the applicant shall not be increased. Any actual changes in project costs shall be the full responsibility of the applicant. In the event that the amount of funding which is provided is greater than the cost of the project, the applicant shall return that portion of the funding which exceeds the cost of the project to the State Librarian.