(d) A petition for exclusive recognition or other election petition will be considered timely when filed as follows:
- (1) Not more than one hundred and five (105) days and not less than (60) days prior to the expiration date of a collective bargaining agreement having a term of three (3) years or less from the date it became effective.
- (2) Not more than one hundred and five (105) days and not less than sixty (60) days prior to the expiration of the initial three (3) year period of a collective bargaining agreement having a term of more than three (3) years from the date it became effective, and any time after the expiration of the initial three (3) year period of such a collective bargaining agreement; and
- (3) Any time when unusual circumstances exist which substantially affect the unit or the majority representation.