LEGAL NOTICE OF EVIDENTIARY HEARING INDIANA UTILITY REGULATORY COMMISSION CAUSE NO. 46342 VERIFIED PETITION OF NORTHERN INDIANA PUBLIC SERVICE COMPANY LLC FOR (1) APPROVAL OF PETITIONER'S TDSIC PLAN FOR ELIGIBLE TRANSMISSION, DISTRIBUTION, AND STORAGE SYSTEM IMPROVEMENTS, PURSUANT TO IND. CODE § 8-1-39-10(a) INCLUDING EXTENSIONS TO RURAL AREAS PURSUANT TO IND. CODE § 8-1-39-11, (2) AUTHORITY TO DEFER COSTS FOR FUTURE RECOVERY, (3) APPROVAL FOR INCLUSION OF NIPSCO'S TDSIC PLAN PROJECTS IN ITS RATE BASE IN ITS NEXT GENERAL RATE PROCEEDING PURSUANT TO IND. CODE § 8-1- 2-23, AND (4) AUTHORITY TO RECOVER TDSIC COSTS PURSUANT TO IND. CODE § 8-1-39-7, UNDER ITS APPROVED RIDER 388 – ADJUSTMENT OF CHARGES FOR TRANSMISSION, DISTRIBUTION AND STORAGE SYSTEM IMPROVEMENT CHARGE. Notice is hereby given that the Indiana Utility Regulatory Commission will conduct a public Evidentiary Hearing in the above-captioned Cause in Room 222 of the PNC Center, 101 W. Washington Street, Indianapolis, Indiana, commencing at 9:30 AM on April 17, 2026. This hearing is open to the public. If an accommodation is required to allow an individual with a disability to participate, please contact the Office of the Executive Secretary of the IURC at 317.232.2701 or TDD 317. 232.8556 at least 48 hours in advance. INDIANA UTILITY REGULATORY COMMISSION OFFICE OF THE EXECUTIVE SECRETARY 317.232.2701 BY: IURC – Sean Gorman, ALJ DATE: March 6, 2026 March 11 2026 LSBN0474858