(2) Any information, other than that relating to the public safety, relating to secret process, device, or method of manufacturing or production obtained in the course of inspection, investigation or activities under ORS 469.300 to 469.563, 469.590 to 469.619, 469.930 and 469.992 shall be kept confidential and shall not be made a part of public record of any hearing. [Formerly 453.565]