In all cases not covered by specific statutes in effect, Part 2, "Safety Rules for the Installation and Maintenance of Overhead Electric Supply and Communication Lines", and Part 3, "Safety Rules for the Installation and Maintenance of Underground Electric Supply and Communication Lines", of the 1993 edition of the National Electrical Safety Code as approved by the American National Standards Institute July 10, 1992, as ANSI Standard C2, are prescribed for overhead and underground construction practice commenced after the date of promulgation of this rule; provided, however, that if the NESC is revised and the Commission adopts such revised edition for purposes of 170 IAC 4-1-26, such revised edition shall thereafter also be applicable for purposes of this rule or if the Commission has not yet adopted such revised edition but the Corporation determines it should comply therewith, the Corporation may do so.
