STATE OF ILLINOIS COMMERCE COMMISSION

Northern Illinois Gas Company ) d/b/a Company ) ) ) ICC Docket No. 19-0294 Petition Pursuant to Rider QIP of Schedule of ) Rates for Gas Service to Initiate a Proceeding to ) Determine the Accuracy and Prudence of ) Qualifing Infrastructure Investment )

NOTICE OF FILING

TO: (Attached Service List)

Please take note that on April 28, 2021, I submitted the Brief on Exceptions and Exceptions of the of the People of the State of Illinois (public and confidential versions) for filing in the above- captioned proceeding via e-Docketwith the Chief Clerk of the Illinois Commerce Commission at 527 E. Capitol Avenue, Springfield, Illinois 62701.

Dated: April 28, 2021 __/s/______Taso Tsiganos Assistant Attorney General Public Utilities Bureau Illinois Attorney General's Office

CERTIFICATE OF SERVICE

I, Taso Tsiganos, hereby certify that the foregoing documents, together with this Notice of Filing and Certificate of Service, were sent to all parties of record listed on the attached service list by e-mail on April 28, 2021. Paper copies will be provided upon request. ___/s/__Taso Tsiganos______Taso Tsiganos Assistant Attorney General Public Utilities Bureau Illinois Attorney General's Office 100 W. Randolph Street, 11th Floor , IL 60601

Thomas G Aridas Koby A Bailey Director Counsel Gas Regulatory Planning Policy Legal Services Departmant North Shore Gas Company WEC Business Services LLC 200 E. Randolph St., 23rd Fl. 200 E. Randolph Dr. Chicago, IL 60601 Chicago, IL 60601

Eric DeBellis Gerardo Delgado Regulatory Counsel Atty. for North Shore Gas Company Citizens Utility Board Quarles & Brady LLP 309 W. Washington St., Ste. 800 300 N. LaSalle St., Ste. 4000 Chicago, IL 60606 Chicago, IL 60654

Adrian Duenas Theodore Eidukas Business Manager Vice President - Regulatory Affairs U.W.U.A. AFL-CIO WEC Energy Group Local 18007 Gas Workers Union 200 E. Randolph Dr. 300 S. Ashland Ave., Ste. 506 Chicago, IL 60601 Chicago, IL 60607

Gerard T Fox Terrance M Garmon Atty. for RESA Administrative Law Judge Law Offices of Gerard T. Fox Illinois Commerce Commission 203 N. LaSalle St., Ste. 2100 160 N. LaSalle St., Ste. C-800 Chicago, IL 60601 Chicago, IL 60601

Robert M Garvin James Goldschmidt Executive Vice President Atty. for North Shore Gas Company External Affairs Quarles & Brady LLP 231 W. St. 300 N. LaSalle St., Ste. 4000 Milwaukee, WI 53203-2918 Chicago, IL 60654

Ryan Granholm Matthew L Harvey Office of General Counsel Office of General Counsel Illinois Commerce Commission Illinois Commerce Commission 160 N. LaSalle St., Ste. C-800 160 N. LaSalle St., Ste. C-800 Chicago, IL 60601 Chicago, IL 60601-3104

Leslie D Haynes Bradley D Jackson Administrative Law Judge Atty. for North Shore Gas Company Illinois Commerce Commission Quarles & Brady LLP 160 N. LaSalle St., Ste. C-800 33 E. Main St., Ste. 900 Chicago, IL 60601 Madison, WI 53703

Christopher J Kim Kathleen A Leiser Tedesco Deputy Chief Executive Secretary Public Utilities Bureau Public Interest Division Illinois Attorney General's Office Illinois Attorney General's Office 100 W. Randolph St., 11th Fl. 100 W. Randolph St., 12th Fl. Chicago, IL 60601 Chicago, IL 60601

Anne McKeon Sharon Moy Atty. for North Shore Gas Company Integrys Energy Group, Inc. Quarles & Brady LLP 200 E. Randolph Dr. 300 N. LaSalle Dr., Ste. 4000 Chicago, IL 60601 Chicago, IL 60654

Susan L Satter Mary E Selvaggio Bureau Chief MES Consulting Public Utilities Bureau 3021 Newport Dr. Illinois Attorney General's Office Springfield, IL 62702 100 W. Randolph St., 11th Fl. Chicago, IL 60601

Christopher N Skey Grant S Snyder Atty. for North Shore Gas Company Public Utilities Bureau Quarles & Brady LLP Illinois Attorney General's Office 300 N. LaSalle St., Ste. 4000 100 W. Randolph St., 11th Fl. Chicago, IL 60654 Chicago, IL 60601

Julie Soderna Richard Stasik General Counsel Director Citizens Utility Board State Regulatory Affairs 309 W. Washington, Ste. 800 WEC Energy Group Chicago, IL 60606 200 E. Randolph Dr. Chicago, IL 60601

Dianna Trost Joe Wilson Case Manager Atty. for North Shore Gas Company Illinois Commerce Commission Quarles & Brady LLP 527 E. Capitol Ave. 411 E. Ave., Ste. 2400 Springfield, IL 62701 Milwaukee, WI 53202