WAC 392-115-035
WAC 392-115-035. Definition—Questioned costs
As used in this chapter, "questioned costs" means the estimated cost presented in a schedule of questioned cost, associated with one or more of the following:
(1) An alleged violation of a law, regulation, contract, grant, cooperative agreement, or other agreement governing the expenditure of moneys.
(2) Lack of adequate documentation of the expenditure of moneys.
(3) The unnecessary or unreasonable expenditure of the moneys.