NSF is not authorized to pay overhead or indirect costs. Other prohibited costs include administrative expenses which may apply to negotiating IPA agreements, cost of living allowances for the Washington Metropolitan Area, unused vacation leave, equipment and supplies. It is NSF's policy to request at least 15 percent cost sharing of salary and benefits from the institution. Cost sharing arrangements are based on the extent to which the participating organizations benefit from the assignment. If cost sharing is not provided by the institution, the reason must be documented.
Assignees continue under applicable leave provisions of the home institution.
Requests for leave usage should be approved in advance by the NSF supervisor, who will maintain a record of usage. HRM has developed a form for this purpose. If applicable, the home institution will continue responsibility for leave administration. First Official Duty Station Travel . NSF may authorize paying the individual's cost of transportation to and from NSF and the assignment location, in accordance with Federal travel and per diem regulations.