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.


Baseline 38.1 Baseline 39.0 Baseline 39.1 Baseline 40.0 Baseline 40.1
Technical Interface Documents
All technical interface documents relating to the upcoming IT Release Schedule are posted on the Pending Changes - Documents page for Market Participant comment. The IESO will post technical documents as they are made available and may not occur on the proposed date indicated. Documents may be deferred to the Market Facing document posting date. Refer to the IT Release Schedule for specific dates.
25 Sep 2017 18 Dec 2017 26 Mar 2018 3 Jul 2018 24 Sep 2018
Baseline Plan
The baseline plan provides details of all document revisions, including stakeholder history and impact of change. It is made available as documents are identified for baseline inclusion. Documents submitted after impact assessment date will added to the plan under the heading "Update to Baseline".
10 Oct 2017 8 Jan 2018 9 Apr 2018 9 Jul 2018 9 Oct 2018
Market Facing Documents
New and revised market manuals and related documents are posted on the Pending Changes - Documents page. IESO initiates impact assessment, inviting market participants to review updated documents and provide feedback regarding document revisions.
11-27 Oct 2017 10-26 Jan 2018 11-27 Apr 2018 11 Jul-3 Aug 2018 10-26 Oct 2018
Final Posting of Documents
Final approved documents published on the IESO website.
6 Dec 2017 7 Mar 2018 6 Jun 2018 12 Sep 2018 5 Dec 2018