For example, GAO relies on the work of the IGs and other auditors to meet the requirements of the Chief Financial Officers (CFO) Act for audited financial statements.
To meet the requirements of the Chief Financial Officers (CFO) Act for audited financial statements, GAO for example relies on the work of te IGs and the other auditors.
For example, GAO doesn't rely on the work of the IGs, instead, they employ volunteers.