CONDITIONS FOR EVALUATING PROPOSALS
The contractor agrees that it and its employees, as well as any subcontractors and their employees (in these conditions, "evaluator") will use the data (trade secrets, business data, and technical data) contained in the proposal for evaluation purposes only. The foregoing requirement does not apply to data obtained from another source without restriction. Any notice or legend placed on the proposal by either HHS or the offeror shall be applied to any reproduction or abstract provided to the evaluator or made by the evaluator. Upon completion of the evaluation, the evaluator shall return to the Government the furnished copy of the proposal or abstract, and all copies thereof, to the HHS office which initially furnished the proposal for evaluation. The evaluator shall not contact the offeror concerning any aspects of a proposal's contents.
48 C.F.R. §315.305