Pending Changes - Documents

The list below provides advance notice of pending changes to the market rules, market manuals, technical interfaces documentation or other items that define the operation of the IESO-administered market. For changes that are minor, the listing will identify the document that is changing and a description of the revisions, but a link to the altered document may not be included.

Comments on the design and implementation concerns can be sent to pending.changes@ieso.ca. This feedback will be taken into account during the baseline schedule.

Details of all of the documents being revised for the current Baseline (and the next Baseline if available) can be found below.

Renewed Market Rules and Manuals Library

Legacy Market Rules and Manuals Library

Technical Interfaces

MRP Baseline Plan

Current Baseline Plan

Next Baseline Plan

See Document Library for previous Baseline Plans.

MRP Baseline

The list below provides advanced notice of pending changes to Market Manuals and forms as part of MRP. For a complete listing of documents changing as part of this baseline please see the MRP Baseline Plan or the Summary of Changes.

Item	Last Updated	Comments Due	Target Implementation

Pending Changes - Documents

Clear

Agreement

Form

Guide

IMDC

List

Market Manual

Specification

Item	Last Updated	Comments Due	Target Implementation
Renewed – Charge Types and Equations, LST-84_v3.1 Replacement of NEMSC to HPTSA_NDL in CT 142, as NEMSC was retired under MRP and clarification about interval calculations added on Table 2-2 about settlement resolution.	29-Jul-2025	13-Aug-2025	Baseline 54.0
Ontario Resource and Transmission Assessment Criteria, IMO_REQ_0041_v5.1 This entire document has been reorganized and updated.	25-Jul-2025	12-Aug-2025	Baseline 54.0
MM0.14.2: Reference Level and Reference Quantity Procedures Changes are being made to provide transparency and greater clarity.	23-Jul-2025	08-Aug-2025	Baseline 54.0
MM0.1.3: Identity Management Operations Guide, MAN-107_v2.1 SMS will no longer be supported as a method for multi-factor authentication (MFA) or for self-service password resets on the external identity.	09-Jul-2025	08-Aug-2025	Baseline 54.0
MM0.1.5: Market Registration, MAN-108_v2.1 Section 2.2.1 Table 2-2 removal and corrections.	09-Jul-2025	08-Aug-2025	Baseline 54.0
CAA Application Form_FORM-128_v1.1 Minor update to CAA SIA application form. Added some section for dynamic models, load models and EMT models. Addressed some user bug fixes since the last update.	09-Jul-2025	08-Aug-2025	Baseline 54.0
MM0.2.13: Market Document Baseline Management, MAN-141_v1.1 Removing MRP exemption and introducing custom baseline process to streamline and formalize changes that occur outside the quarterly baseline schedule.	09-Jul-2025	08-Aug-2025	Baseline 54.0
MM0.4.2: Operation of the Day-Ahead Market, MAN-110, v2.1 Updated bullet in section 3.2.7 to state that the IESO shall use reasonable efforts to incorporate forced outages.	09-Jul-2025	08-Aug-2025	Baseline 54.0
MM0.7.1: IESO-Controlled Grid Operating Procedures, MAN-121_v2.1 To add clarity regarding Extreme Conditions and Severe Weather Events and consolidate these terms into a single Conservative Operations advisory.	09-Jul-2025	08-Aug-2025	Baseline 54.0
MM0.12: Capacity Auction_MAN-125_v2.1 To provide more flexibility for participants to additionally qualify a physical hourly demand response resource, which could be used to satisfy an obligation should a new dispatchable load resource not be registered within the required timeframe.	25-Jun-2025	09-Jul-2025	In advance of Baseline 54.0
MM0.4.1: Submission of Dispatch Data in the Physical Markets_MAN-109_v2.1 Enabling a second intertie between Ontario and Quebec to provide more flexibility for future auctions.	25-Jun-2025	09-Jul-2025	In advance of Baseline 54.0