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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 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.

See Document Library for previous Baseline Plans.

Pending Changes - Documents

Item Last Updated Comments Due Target Implementation
OREC-OESP and OER-OESP Variance Settlement Forms for USMPs, IMDC-56_v1.0

Ministry has directed the IESO to facilitate remittance of excess OREC and OER rebates for customers that receive OESP credits from USMPs.
24-Jan-2020 January 31, 2020
Market Manual 3: Metering Part 3.2: Meter Point Registration and Maintenance, MDP_PRO_0013_v27.1

Updating information regarding content of wholesale metering commissioning report submissions. Clarity added to timeline for conducting commissioning activities. Updated information for Engineering Unit Report (EUR) activity to permit on-bench testing.
08-Jan-2020 24-Jan-2020 Baseline 43.0
Market Manual 7: System Operations Part 7.2: Near-Term Assessments and Reports, IMP_PRO_0033_v43.1

Added definition for Hourly Demand Response in Appendix D.2.
08-Jan-2020 24-Jan-2020 Baseline 43.0
Market Manual 7: System Operations Part 7.1: IESO-Controlled Grid Operating Procedures, MDP_PRO_0040_v36.1

Revised Section 6 and added new Appendix (C) to provide clarity in physical security and cyber security event reporting requirements.
08-Nov-2019 02-Dec-2019 Baseline 43.0
Market Manual 11: Reliability Compliance Part 11.1 Applicability Criteria for Compliance with NERC Reliability Standards and NPCC Criteria, IESO_GDE_0364_v6.2

Updated to clarify the requirements for the testing of Remedial Action Schemes (NERC Standard PRC-005-6). Updated to include applicability guidance for NERC standards PRC-002-2, PRC-005-6, and VAR-002-4
15-Nov-2017 28-Nov-2017 Deferred to Baseline 43.0