Skip Links
Sector Participants > Change Management > Pending Changes - Documents

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.

See Document Library for previous Baseline Plans.

Pending Changes - Documents

Item Last Updated Comments Due Target Implementation
Ontario Reliability Compliance Program Data Request Form, Ontario Automatic Under Frequency Load Shedding (UFLS) Program Requirements, IESO_FORM_1719v9.2

To streamline the process and meet stakeholders’ requirements, allowing the form to be more easily used by intended users and removing ambiguity from the instructions.

v9.2 - S4 updated.
10-Jun-2024 21-Jun-2024 In advance of Baseline 52.0
Format Specifications for Settlement Statement Files and Data Files, IMP_SPEC_0005_v59.1

Updated to describe new Capacity Auction related charges ct1323, ct1324 and ct1325 output on statements and updates for ct1417.
06-May-2024 17-May-2024 In advance of Baseline 52.0
MM4: Market Operations Part 4.4: Transmission Rights Auction, MDP_PRO_0029_v24.1

Revised document to reflect changes resulting from the Transmission Rights Auction Enhancement and Platform Refresh project.
25-Apr-2024 08-May-2024 In advance of Baseline 52.0
Transmission Rights Auction System: Participant's Guide, IMO_GDE_0004_v10.1

Revised entire document to reflect changes resulting from the Transmission Rights Auction Enhancement and Platform Refresh project.
25-Apr-2024 08-May-2024 In advance of Baseline 52.0
MM6.0 Participant Technical Reference Manual, IMO_MAN_0024v39.1

Change in access for the Transmission Rights Auction application to Online IESO.
25-Apr-2024 08-May-2024 In advance of Baseline 52.0