SOUTH DAKOTA ELECTRIC RATE SCHEDULE

NORTHWESTERN CORPORATION d/b/a NORTHWESTERN ENERGY Section No. 1 SIOUX FALLS 1st Revised Sheet No. 3 SOUTH DAKOTA Canceling Original Sheet No. 3

TABLE OF CONTENTS (Continued)

Section Item Sheet No. 6 Sample Forms Non-Sufficient Funds Removal from EZ Pay ........... 34 Cover Letter for EZ Pay Application ........................ 35 Application for EZ Pay ............................................ 36 Removal from EZ Pay ........................................... 37 EZ Pay Modification of Preferred Due Date ............. 38 EZ Pay Financial Institution Account Verification ..... 39 Return of Landlord Program Agreement ................. 40 Landlord Notice of Discontinued Service ................. 41 Notice of Transfer of Service to Landlord ................ 42 Notice of Suspension of Landlord Agreement ......... 43 Notice of Transfer of Balance from Unpaid Account 44 Landlord Courtesy notice of Discontinued Service .. 45 Notice of Change of Preferred Due Date ................. 46 Removal of Preferred Due Date .............................. 47 Notice of Balance Over 90 Days ............................. 48 Notice of Adjustment on Account ............................ 49 Notice of Returned Payment ................................... 50 Letter of Authorization Adding Co-Responsible Party 51 One-time Release of Information............................. 52 Letter of Authorization – Residential Accounts ........ 53 Authorization to Do Business .................................. 54 Notice of Over Estimation ....................................... 55 Letter of Verification of Services .............................. 56 Landlord Continuous Service Agreement Letter Page 1 57 Landlord Continuous Service Agreement Page 2 .... 58 Landlord Continuous Service Agreement Page 3 .... 59 Landlord Continuous Service Agreement Page 4 .... 60 Date Filed: March 2, 2018 Effective Date: April 3, 2018 EL18- Issued by: Jeff Decker, Specialist Regulatory

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SAMPLE FORMS NORTHWESTERN CORPORATION d/b/a NORTHWESTERN ENERGY Section No. 6 SIOUX FALLS Original Sheet No. 57 SOUTH DAKOTA

Date Filed: March 2, 2018 Effective Date: April 3, 2018 EL18- Issued by: Jeff Decker, Specialist Regulatory

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SAMPLE FORMS NORTHWESTERN ENERGY Section No. 6 SIOUX FALLS Original Sheet No. 58 SOUTH DAKOTA

Date Filed: March 2, 2018 Effective Date: April 3, 2018 EL18- Issued by: Jeff Decker, Specialist Regulatory

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SAMPLE FORMS NORTHWESTERN ENERGY Section No. 6 SIOUX FALLS Original Sheet No. 59 SOUTH DAKOTA

Date Filed: March 2, 2018 Effective Date: April 3, 2018 EL18- Issued by: Jeff Decker, Specialist Regulatory

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SAMPLE FORMS NORTHWESTERN ENERGY Section No. 6 SIOUX FALLS Original Sheet No. 60 SOUTH DAKOTA

Date Filed: March 2, 2018 Effective Date: April 3, 2018 EL18- Issued by: Jeff Decker, Specialist Regulatory

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