FAR clauses/Part 16/Checked 15 Sep 2026
FAR 52.216-18
Ordering
- Clause date
- AUG 2020
- Prescribed at
- FAR 16.506(a). Insert when a definite-quantity contract, a requirements contract, or an indefinite-quantity contract is contemplated.
- Applies to
- Indefinite-delivery contracts: definite-quantity, requirements, and indefinite-quantity.
- Flowdown
- No flowdown required
52.216-18 contains no subcontract flowdown paragraph. It is not listed in 52.244-6(c)(1) or 52.212-5(e)(1). - Full text
- FAR 52.216-18 on Acquisition.gov
… All delivery orders or task orders are subject to the terms and conditions of this contract. In the event of conflict between a delivery order or task order and this contract, the contract shall control. …
From the clause · Codified FAR · FAC 2026-01
Why it matters: An order conflicting with the base contract loses, and an order sent by mail is issued when the Government deposits it in the mail, not when the contractor receives it.
This is the codified text, not any agency's Revolutionary FAR Overhaul deviation. An agency running a class deviation may have this clause renumbered, rewritten or prescribed differently — check the deviation before you put a clause in a solicitation.
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3- 52.216-7Allowable Cost and PaymentFAR 16.307(a)
- 52.216-19Order LimitationsFAR 16.506(b)
- 52.216-22Indefinite QuantityFAR 16.506(e)