Records retention is the final step in the project closeout process. The project records the prime contractor has collected must be retained. Supporting documentation for the project must be securely filed and available upon request for audits or reviews by TxDOT, FHWA, or other government officials. Federal regulation requires the retention of all federal-aid project records for a minimum of three years after final payment.

According to the Texas State Retention Schedule (5.1.001 and Government Code, 441.1855) records for all contracts must be kept for seven years after close if executed, renewed or amended on or after September 1, 2015. For contracts executed, renewed, or amended on or before August 31, 2015, records must be retained for four years after close.