48 CFR § 3.501-1
Definition
November 17, 2020
Buying-in as used in this section, means submitting an offer below anticipated costs, expecting to—
(1) Increase the contract amount after award (e.g., through unnecessary or excessively priced change orders); or
(2) Receive follow-on contracts at artificially high prices to recover losses incurred on the buy-in contract.
[48 FR 42108, Sept. 19, 1983, as amended at 66 FR 2127, Jan. 10, 2001]