48 C.F.R. § 32.706-3
32.706-3 Clause for unenforceability of unauthorized obligations.
The contracting officer shall insert the clause at 52.232-39, Unenforceability of Unauthorized Obligations in all solicitations and contracts.
The contracting officer shall insert the clause at 52.232-39, Unenforceability of Unauthorized Obligations in all solicitations and contracts.