| Item | Last Updated | Comments Due | Target Implementation |
|---|---|---|---|
| MM 1.7- Synchrophasor Data Requirements Updates synchrophasor monitoring requirements for generators, transmitters, and electricity storage participants, including additional phasor data requirements. |
14-Oct-2026 | 30-Oct-2026 | To be published under Baseline 56.1. |
| MM 2.3- Market Rule Amendment Procedure Complete rewrite of the manual in its entirety to conform to the renewed market manuals style and structure. As a result, there are no tracked changes in this version. |
14-Oct-2026 | 30-Oct-2026 | To be published under Baseline 56.1. |
| MM 5.5 - IESO-Administered Markets Settlement Amounts Improves clarity and consistency in the interpretation and application of Emergency Activation Payment provisions. |
15-Oct-2026 | 29-Oct-2026 | To be published in advance of Baseline 56.1 on November 23, 2026. |
| MM 5.6: Non-Market Settlement Programs To correct a typographical error in Section 3.1 |
14-Oct-2026 | 30-Oct-2026 | To be published under Baseline 56.1. |
| LST-84 - IESO Charge Types and Equations Provides greater clarity on the application of the In-Period Cleared UCAP Adjustment Charge (de-rate) calculation, including Notice of Disagreement (NOD) treatment, and forfeiture provisions. |
15-Oct-2026 | 29-Oct-2026 | To be published in advance of Baseline 56.1 on November 23, 2026. |
| MM 7.1 – IESO-Controlled Grid Operating Procedures Changed section 2.4.1 title from Conservative Operations to Advisory Notices. The new Advance Notice is an advisory notice the IESO may issue one to seven days in advance of forecasted adverse conditions. |
14-Oct-2026 | 30-Oct-2026 | To be published under Baseline 56.1 |
| MM 7.2 – Near-Term Assessments and Reports In Appendix C.1, clarified that the IESO may require and publish regulation service requirements above the minimum requirement to support operability needs. In Appendix D, Table D-1, added CHIP (Chatham inflow), BBO (Bruce B Output), and FABCW+NBLIP interfaces and updated descriptions and notes for existing interfaces to align with current operating security limit requirements. |
14-Oct-2026 | 30-Oct-2026 | To be published under Baseline 56.1. |
| MM 7.3 – Outage Management Added provisions in sections 4.2 and 4.2.1 to support long-term outage planning and coordination. |
14-Oct-2026 | 30-Oct-2026 | To be published under Baseline 56.1. |
| MM 12.0 - Capacity Auctions Replace email-based capacity test data submissions with a dedicated submission tool in Online IESO. |
15-Oct-2026 | 29-Oct-2026 | To be published in advance of Baseline 56.1 on November 23, 2026. |
| FORM 174 - Technical Feasibility Study Application Update to the Technical Feasibility Study Application Form to combine the following forms into one. Technical Feasibility Study Application - Generation Facilities (FORM 1380) Technical Feasibility Study Application - Transmission Facilities (FORM 1381) Technical Feasibility Study Application - Load Facilities (FORM 1052) Technical Feasibility Study Application - Ancillary Services Facilities (FORM 1174) |
14-Oct-2026 | 30-Oct-2026 | To be published under Baseline 56.1. |