48 C.F.R. § 32.611 – Contract clause.

(a) The contracting officer shall insert the clause at 52.232—17, Interest, in solicitations and contracts unless it is contemplated that the contract will be in one or more of the following categories:
1. (1) Contracts at or below the simplified acquisition threshold.
2. (2) Contracts with Government agencies.
3. (3) Contracts with a State or local government or instrumentality.
4. (4) Contracts with a foreign government or instrumentality.
5. (5) Contracts without any provision for profit or fee with a nonprofit organization.
6. (6) Contracts described in Subpart 5.5, Paid Advertisements.
7. (7) Any other exceptions authorized under agency procedures.
(b) The contracting officer may insert the FAR clause at 52.232-17, Interest, in solicitations and contracts when it is contemplated that the contract will be in any of the categories specified in 32.611(a).