| Date Filed | Summary | Pages |
| 12/27/2021 | Construction Completion Notification Letter electronically filed by Ms. Devan K. Flahive on behalf of American Transmission Systems Incorporated. | 2 |
| 07/14/2020 | Notice of the Start of Construction of Project will commence on July 20, 20202 electronically filed by Mr. Robert J Schmidt on behalf of American Transmission Systems Inc. | 2 |
| 08/15/2019 | Notice of the Filing of Supplemental Information in Response to Staff Request electronically filed by Mr. Robert J Schmidt on behalf of American Transmission Systems Inc. | 3 |
| 08/15/2019 | Service Notice | 2 |
| 08/14/2019 | Staff Report of Investigation electronically filed by Mr. Matt Butler on behalf of Staff of OPSB. | 5 |
| 05/29/2019 | Proof of Pub of Public Notice of Project electronically filed by Mr. Robert J. Schmidt on behalf of American Transmission Systems Inc. | 3 |
| 05/22/2019 | Application of ATSI for the Darrow Substation Expansion Project filed by N. Bryksenkova. | 106 |
| 04/04/2019 | In the matter of the Pre-application Notification Letter for Darrow Substation Expansion Project electronically filed by Mr. Robert J Schmidt on behalf of American Transmission Systems Inc. | 2 |