Section 1815.606 - Agency procedures. (NASA supplements paragraphs (a) and (b))(a) NASA will not accept for formal evaluation unsolicited proposals initially submitted to another agency or to the Jet Propulsion Laboratory (JPL) without the offeror's express consent.63 FR 9954, Feb. 27, 1998, as amended at 69 FR 21764, Apr. 22, 2004