MISO Certificate of Concurrence Acceptance ER26-964
Summary
FERC Office of Energy Market Regulation issued a delegated order accepting Midcontinent Independent System Operator, Inc.'s Certificate of Concurrence and tariff record filing under Docket ER26-964. The filing was originally submitted January 7, 2026, and subsequently amended on February 10 and March 5, 2026. This acceptance formalizes MISO's tariff provisions for the competitive electricity market region.
What changed
FERC's Office of Energy Market Regulation issued a delegated order accepting MISO's Certificate of Concurrence filing under ER26-964. The original filing of January 7, 2026, underwent two amendments (February 10 and March 5, 2026) before receiving acceptance. This acceptance formalizes tariff provisions governing MISO's competitive electricity market operations across its footprint.
Entities operating within MISO's territory—including utilities, power generators, and transmission companies—should update their rate schedules and operational procedures to align with the now-accepted tariff provisions. While the order imposes no new compliance obligations, it finalizes the regulatory framework governing market participants' rates and operational requirements within the MISO region.
What to do next
- Monitor MISO tariff updates for implementation dates
- Update internal rate schedules to reflect accepted tariff provisions
- Review grid operations procedures for any required modifications
Archived snapshot
Apr 10, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Document Info for Accession Number: 20260410-3031
Details Document: 04/10/2026
Filed: 04/10/2026
Posted: 04/10/2026 12:57:06 PM
First Received Date: 04/10/2026 12:36:23 PM
Security Level: Public
Official: Yes
E-filing: No
Non-decisional: No
Category: Issuance
Library: Electric
Aperture: 0
File Type:
Description* :** Letter order accepting Midcontinent Independent System Operator, Inc.'s 01/07/2026, as amended on 02/10/2026 and 03/05/2026, filing of a Certificate of Concurrence and tariff record etc. under ER26-964.
File List
| Docket | Sub-Docket | Type |
|---|---|---|
| ER26-964 | 002 | On Document |
| Document Class | Document Type |
|---|---|
| Order/Opinion | Delegated Order |
| Correspondent | Last Name | First Name | MI | Role/Org |
|---|---|---|---|---|
| RECIPIENT | * | * | MIDCONTINENT INDEPENDENT SYSTEM OPERATOR, INC. | |
| AUTHOR | Tingle-Stewart | N | Y | OFFICE OF ENERGY MARKET REGULATION |
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