What notice must the Contracting Officer provide to each offeror whose proposal was in the competitive range but was not selected for award?

The appropriate notice that the Contracting Officer must provide to each offeror whose proposal was in the competitive range but was not selected for award is known as Postaward Notices. This type of notice is essential because it informs the offerors of the agency's decision after the awards have been made. It serves multiple purposes, such as maintaining transparency in the procurement process, allowing offerors to understand their standing and the rationale behind the decision, and providing essential feedback that may help them in future submissions.

Furthermore, Postaward Notices are an integral component of the overall contracting process as they demonstrate adherence to fair competition principles by ensuring that those not awarded have an understanding of their proposal's evaluation outcome. The structured communication following the award helps to foster trust and clarity in government contracting, ensuring that all participants are adequately informed and can seek improvements for future proposals.

Other terms like Pre-award Notices typically address information before the award decision, while Competitive Range Notices are not an official term widely recognized in the contracting process. Selection Notices might imply a broader context that doesn’t specifically pertain to those who were not chosen, making Postaward Notices the most fitting choice for the scenario described.