Protest Untimely When Protester Knew Grounds Prior to Corrective Action; GAO B-416804.3, Catalyst Solutions LLC

Supplemental protest challenging aspects of the agency’s evaluation of the awardee’s proposal is dismissed as untimely, where the protester was aware of its grounds of protest when it challenged the original award decision and when it protested the post-corrective action decision affirming the earlier choice, yet failed to raise these arguments at either point.