Oregon Revised Statutes Public Facilities, Contracting and Insurance § 279C.107

(1) Notwithstanding the public records law, ORS 192.410 to 192.505, if a contracting agency solicits a contract for architectural, engineering, photogrammetric mapping, transportation planning or land surveying services or related services by a competitive proposal:

(2) Notwithstanding any requirement to open proposals to public inspection after the contracting agency executes a contract, a contracting agency shall withhold from disclosure to the public trade secrets, as defined in ORS 192.501, and information submitted to a public body in confidence, as described in ORS 192.502, that are contained in a proposal. Opening a proposal at a public meeting, as defined in ORS 192.610, does not make the contents of the proposal subject to disclosure, regardless of whether the public body that opens the proposal fails to give notice of or provide for an executive session for the purpose of opening proposals. If a request for proposals is canceled after proposals are received, the contracting agency shall, subject to ORS 192.501 and 192.502, return a proposal and all copies of the proposal to the proposer that made the proposal. The contracting agency shall keep a list of returned proposals in the file for the solicitation.