Sec. 15.
(c) The owner or operator of the affected emission unit experiencing an exceedance of its emissions limit during a malfunction shall notify the department by telephone or facsimile transmission as soon as possible, but no later than two (2) business days after the initial occurrence of the malfunction, that it wishes to avail itself of an affirmative defense to civil penalties for that malfunction. The owner or operator of a secondary lead smelter seeking to assert an affirmative defense shall also submit a written report to the department within forty-five (45) days of the initial occurrence of the exceedance of the standard in this rule to demonstrate, with all necessary supporting documentation, that it has met the requirements set forth in subsection (b). The owner or operator of a secondary lead smelter may seek an extension of this deadline for up to thirty (30) additional days by submitting a written request to the department before the expiration of the forty-five (45) day period. Until a request for an extension has been approved by the department, the owner or operator of a secondary lead smelter is subject to the requirement to submit the report within forty-five (45) days of the initial occurrence of the exceedance. *This document is incorporated by reference. Copies may be obtained from the Government Printing Office, 732 North Capitol Street NW, Washington, D.C. 20401 or are available for review and copying at the Indiana Department of Environmental Management, Office of Air Quality, Indiana Government Center North, Tenth Floor, 100 North Senate Avenue, Indianapolis, Indiana 46204.