The Task Order chart of account element has this reimbursement billing feature that is a simplified manner of regular reimbursement. When an internal funding source is the only type of funding and the funding structure is constant (e.g. no need for different Funding Priorities), then this feature is setup on the Task Order, Task Order Inference, and Task Order Buyer Line. Task Orders that are alike re-use a defined Major Program, Program, and possibly Phase as part of the Reimbursement Output system process to generate Internal Exchange Transactions to reimburse the Task Order and record expenditures in the internal funding source(s).
An optional setup, and one that is not part of the reimbursement process as with normal reimbursement, is the use of the Task Order budget structure (#47). That budget is used for tracking and controlling Task Order spending only.