719.33—What categories of costs are unallowable?
(b)
The Department does not consider for reimbursement any costs incurred for entertainment or alcoholic beverages. See 48 CFR (FAR) 31.205-14 and 31.205-51 and 41 U.S.C. 256(e).
(c)
Costs that are customarily or already included in billed hourly rates are not separately reimbursable.
(d)
Interest charges that a contractor incurs on any outstanding (unpaid) bills from retained legal counsel are not reimbursable.