What you must do
Pre-award costs (incurred before the award/subaward start date, directly pursuant to negotiation and in anticipation of the award, and necessary for efficient and timely performance of the scope of work) are allowable only to the extent they would have been allowable if incurred after the start date and only with the written approval of the Federal agency; if approved, they must be charged to the initial budget period unless the Federal agency or pass-through entity specifies otherwise.
When it applies
Any budgeted or claimed cost dated before the proposed award or subaward start date.