Oregon Revised Statutes Public Financial Administration § 293.316

Any person aggrieved by the disallowance of a claim for payment of any moneys in the State Treasury, if the claim is subject to disapproval by the Oregon Department of Administrative Services under ORS 293.300, or by the state agency that incurred the obligation or made the expenditure on which the claim is based, if the claim is not subject to disapproval by the department under ORS 293.300, may appeal the disallowance by the department or agency under ORS 183.482.