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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
Market Manual 4: Market Operations Part 4.3: Real-Time Scheduling of the Physical Markets, IMP_PRO_0034_v52.1

Section 3: Determining Real-Time Schedules updated to reflect the Market Interface System (MIS) upgrade
11-Oct-2017 27-Oct-2017 Baseline 38.1
Market Manual 6: Participant Technical Reference Manual, IMO_MAN_0024_v32.1

The Message Exchange System is being refreshed by the Dispatch Service System
11-Oct-2017 27-Oct-2017 Baseline 38.1
Market Manual 7: System Operations Part 7.1: IESO-Controlled Grid Operating Procedures, MDP_PRO_0040_v32.1

Updated Section 11.3: Automatic Under-Frequency Load Shedding (UFLS) to include items that were part of the UFLS list in Market Manual 7.4 prior to 2016, but were not incorporated into Market Manual 7.1
11-Oct-2017 27-Oct-2017 Baseline 38.1
Market Manual 11: Reliability Compliance Part 11.1 Applicability Criteria for Compliance with NERC Reliability Standards and NPCC Criteria, IESO_GDE_0364_v6.1

Updated to include applicability guidance for NERC standards PRC-002-2, PRC-005-6, and VAR-002-4
03-Oct-2017 18-Oct-2017 31-Oct-2017