Direct them to the information on the OSP's web site. Regarding the State of Washington Single Audit Report:
The Washington State Agency Code for the University of Washington is 360. Annual audits are performed in accordance with the requirements of OMB Circular A-133/2 CFR PART 200 UNIFORM ADMINISTRATIVE REQUIREMENTS, COST PRINCIPLES, AND AUDIT REQUIREMENTS FOR FEDERAL AWARDS, Subpart F and Government Auditing Standards, for all campus locations of the University of Washington.
For more extensive information, refer to the State of Washington Single Audit Report, which includes both the financial statements and the expenditures of federal awards by all state agencies, including the University of Washington.