A solicitation’s evaluation criteria are tremendously important. Not only must offerors understand and comply with those criteria in order to have a chance at being awarded the contract, but the agency must abide by them too. Where an agency does not, it risks that a protest challenging the application of an unstated evaluation criteria will be sustained.
So it was in Phoenix Air Group, Inc., B-412796.2 et al. (Sept. 26, 2016), a recent GAO decision sustaining a protest where the protester’s proposal was unreasonably evaluated under evaluation criteria not specified in the solicitation.