Retention of records.
CFR · 2024-01-01 · US · Title 14
Each sponsor or planning agency shall retain, for a period of 3 years after the date of submission of the final expenditure report— (a) Documentary evidence, such as invoices, cost estimates, and payrolls, supporting each item of project costs; and (b) Evidence of all payments for items of project costs, including vouchers, cancelled checks or warrants, and receipts for cash payments.
official document · source cfr-2024 · id 14:§ 152.307