GSA has a FAR deviation that allows use of the clause in paragraph (a) of this subsection in lieu of the FAR clause at 52.232-39.

(a) Insert the clause at 552.232-39, Unenforceability of Unauthorized Obligations in all solicitations and contracts in lieu of the FAR clause at 52.232-39.

(b) Insert the clause at 552.232-78, Commercial Supplier Agreements—Unenforceable Clauses, in all solicitations and contracts (including orders) when not using FAR part 12.