GAO's most recent tradeoff decision is explicit that volume is not the bar.
- B-424017 (Feb 2026): “There is no need for extensive documentation of every consideration factored into a tradeoff decision. Rather, the documentation need only be sufficient to establish that the agency was aware of the relative merits and costs of the competing quotations.” The award held on a 3.79% premium.
The documented tradeoffs GAO sustained against fell for a different reason
- B-420494 (2022): “Agencies cannot announce in a solicitation an evaluation scheme ... and then disregard the stated evaluation scheme and make award on a lowest-priced, technically acceptable basis.”
- B-419848 (2022): “The decision memorandum does not adequately identify the basis for the conclusion that [the awardee’s] technical advantages ... outweigh the associated price premium.”
The test is not volume. It is whether the reasoning exists and tracks the scheme the agency announced.
These cases illustrate the failure modes, not their frequency: across the corpus, evaluation-and-documentation grounds sustained in 548 of 6,440 decided, about 8.5 percent. A structural sample, not a census.
The corpus baseline behind this note is Three Patterns Across Decades.
If you work GAO bid protests and want the full set behind a pattern, fifteen minutes is what we ask: calendly.com/sediment-research.
— Sediment Research