Audit 356640

Title: SUBRECIPIENTS Accounting Policies: 1. BASIS OF PRESENTATION The accompanying schedule of expenditures of federal awards (the Schedule) includes the federal grant activity of IAS, under programs of the federal government for the year ended December 31, 2024. The information in this Schedule is presented in accordance with the requirements of Title 2 U.S. Code of Federal Regulations (CFR) Part 200, Uniform Administrative Requirements, Cost Principles, and Audit Requirements for Federal Awards (Uniform Guidance). Because the Schedule presents only a selected portion of the operations of IAS, it is not intended to and does not present the financial position, changes in net assets, or cash flows of IAS. 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Expenditures reported on the Schedule are reported on the accrual basis of accounting. Such expenditures are recognized following the cost principles contained in the Uniform Guidance, wherein certain types of expenditures are not allowable or are limited as to reimbursement. De Minimis Rate Used: N Rate Explanation: IAS has not elected to use the 10 percent de minimis indirect cost rate as allowed under the Uniform Guidance. There were no awards passed through to subrecipients.

Title: RECONCILIATION OF SCHEDULE OF EXPENDITURES OF FEDERAL AWARDS TO THE FINANCIAL STATEMENTS Accounting Policies: 1. BASIS OF PRESENTATION The accompanying schedule of expenditures of federal awards (the Schedule) includes the federal grant activity of IAS, under programs of the federal government for the year ended December 31, 2024. The information in this Schedule is presented in accordance with the requirements of Title 2 U.S. Code of Federal Regulations (CFR) Part 200, Uniform Administrative Requirements, Cost Principles, and Audit Requirements for Federal Awards (Uniform Guidance). Because the Schedule presents only a selected portion of the operations of IAS, it is not intended to and does not present the financial position, changes in net assets, or cash flows of IAS. 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Expenditures reported on the Schedule are reported on the accrual basis of accounting. Such expenditures are recognized following the cost principles contained in the Uniform Guidance, wherein certain types of expenditures are not allowable or are limited as to reimbursement. De Minimis Rate Used: N Rate Explanation: IAS has not elected to use the 10 percent de minimis indirect cost rate as allowed under the Uniform Guidance. See the Notes to the SEFA for chart/table.