GAO interprets its bid protest timeliness rules very strictly, as readers of this blog will know. These timeliness rules typically pertain to the initial protest, but are equally important when a protester files a supplemental protest. Often, supplemental protests are filed after the protester receives the agency’s response and comes to learn new information that wasn’t previously available.
If a supplemental protest raises allegations independent of those set forth in the initial protest, the supplemental protest must independently satisfy GAO’s strict timeliness rules. A recent GAO decision shows how easy it can be to slip up on these deadlines when considering a supplemental protest.