Information exempt from public inspection.

(a) Information submitted in confidence shall be exempt from public inspection if it is determined that the disclosure of such information is not required by law. (b) A party requesting an exemption from public inspection for information submitted in writing shall clearly mark each page “Submitted in Confidence” at the top, and shall submit a nonconfidential summary of the confidential information. Such person shall also provide a written explanation of why the material should be so protected. (c) A request for exemption of any particular information may be denied if it is determined that such information is not entitled to exemption under law. In the event of such a denial, the information will be returned to the person who submitted it, with a statement of the reasons for the denial.