| Date Filed | Summary | Pages |
| 09/11/2023 | Notice of Substitution of Counsel electronically filed by Ms. Devan K. Flahive on behalf of American Transmission Systems Incorporated. | 4 |
| 06/09/2023 | Notice of Updated Construction Start Date electronically filed by Ms. Devan K. Flahive on behalf of AmericanTransmission Systems Incorporated. | 2 |
| 06/01/2023 | Notice of Compliance with Construction Certificate Condition (3) - Belmont County Floodplain Permit electronically filed by Ms. Devan K. Flahive on behalf of AmericanTransmission Systems Incorporated. | 2 |
| 05/23/2023 | Notice Construction Commencement electronically filed by Ms. Devan K. Flahive on behalf of American Transmission Systems Incorporated. | 2 |
| 05/12/2023 | Service Notice. | 3 |
| 05/11/2023 | Staff Report of Investigation electronically filed by Mr. James S. O'Dell on behalf of Staff of OPSB. | 7 |
| 04/20/2023 | Response to Staff's First Data Request electronically filed by Ms. Devan K. Flahive on behalf of American Transmission Systems Incorporated. | 3 |
| 03/16/2023 | Proof of Publication and Public Notice Letters electronically filed by Mr. Christopher K. Riedel on behalf of American Transmission Systems Incorporated. | 8 |
| 02/28/2023 | Application, Letter of Notification, Part 5 of 5, electronically filed by Mr. Christopher K. Riedel on behalf of American Transmission Systems Incorporated. | 15 |
| 02/28/2023 | Application, Letter of Notification, Part 4 of 5, electronically filed by Mr. Christopher K. Riedel on behalf of American Transmission Systems Incorporated. | 482 |
| 02/28/2023 | Application, Letter of Notification, Part 3 of 5, electronically filed by Mr. Christopher K. Riedel on behalf of American Transmission Systems Incorporated. | 349 |
| 02/28/2023 | Application, Letter of Notification, Part 2 of 5, electronically filed by Mr. Christopher K. Riedel on behalf of American Transmission Systems Incorporated. | 64 |
| 02/28/2023 | Application, Letter of Notification, Part 1 of 5, electronically filed by Mr. Christopher K. Riedel on behalf of American Transmission Systems Incorporated. | 149 |
| 02/22/2023 | Corrected Pre-Application Notification Letter for the Holloway - Knox 138 kV Transmission Line Rebuild Project - Holloway Substation to Nottingham Substation Segment electronically filed by Ms. Devan K. Flahive on behalf of American Transmission Systems Incorporated. | 2 |
| 02/17/2023 | In the Matter of the Pre-Application Notification Letter for Holloway-Knox 138 kV Transmission Line Rebuild Project electronically filed by Mr. Christopher K. Riedel on behalf of American Transmission Systems Incorporated. | 2 |