48 CFR §15.609

1. (a)An unsolicited proposal may include data that the offeror does not want disclosed to the public for any purpose or used by the Government except for evaluation purposes. If the offeror wishes to restrict the data, the title page must be marked with the following legend:
2. (b)The offeror shall also mark each sheet of data it wishes to restrict with the following legend: Use or disclosure of data contained on this sheet is subject to the restriction on the title page of this proposal.
3. (c)The agency point of contact shall return to the offeror any unsolicited proposal marked with a legend different from that provided in paragraph (a) of this section. The return letter will state that the proposal cannot be considered because it is impracticable for the Government to comply with the legend and that the agency will consider the proposal if it is resubmitted with the proper legend.
4. (d)The agency point of contact shall place a cover sheet on the proposal or clearly mark it as follows, unless the offeror clearly states in writing that no restrictions are imposed on the disclosure or use of the data contained in the proposal:
5. (e)Use the notice in paragraph (d) of this section solely as a manner of handling unsolicited proposals that will be compatible with this subpart. However, do not use this notice to justify withholding of a record, or to improperly deny the public access to a record, where an obligation is imposed by the Freedom of Information Act (5 U.S.C. 552). An offeror should identify trade secrets, commercial or financial information, and privileged or confidential information to the Government (see paragraph (a) of this section).
6. (f)When an agency receives an unsolicited proposal without any restrictive legend from an educational or nonprofit organization or institution, and an evaluation outside the Government is necessary, the agency point of contact shall—
   1. (1)Attach a cover sheet clearly marked with the legend in paragraph (d) of this section;
   2. (2)Change the beginning of this legend to read “All Government and non-Government personnel * * * ”; and
   3. (3)Require any non-Government evaluator to agree in writing that data in the proposal will not be disclosed to others outside the Government.
7. (g)If the proposal is received with the restrictive legend (see paragraph (a) of this section), the modified cover sheet shall also be used and permission shall be obtained from the offeror before release of the proposal for evaluation by non-Government personnel.
8. (h)When an agency receives an unsolicited proposal with or without a restrictive legend from other than an educational or nonprofit organization or institution, and evaluation by Government personnel outside the agency or by experts outside of the Government is necessary, written permission must be obtained from the offeror before release of the proposal for evaluation. The agency point of contact shall—
   1. (1)Clearly mark the cover sheet with the legend in paragraph (d) or as modified in paragraph (f) of this section; and
   2. (2)Obtain a written agreement from any non-Government evaluator stating that data in the proposal will not be disclosed to persons outside the Government.