The commissioner may not make public information which contains or relates to trade secrets, commercial, or financial information obtained from a person, or privileged or confidential information: Provided, That when revealing the information is necessary to carry out the provisions of this article, this information may be revealed, subject to a protective order, to any federal, state, or local agency consultant; or may be revealed, subject to a protective order, at a closed hearing or in findings of fact issued by the commissioner.