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ISO Participating Transmission Owners
3.23 KB
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WEM regional issues forum - sector contacts |
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Apr 17, 2026 EDAM Addendum to the Powerex EIM Participating Resource Scheduling Coordinator Agreement (ER26-2248)
708.08 KB
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Filing |
Powerex Corp - Energy Imbalance Market participation agreements |
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Video - Parallel Operations - Apr 16, 2026
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Video and Audio |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Apr 16, 2026 01:00 PM |
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Presentation - Parallel Operations - Apr 16, 2026
1.40 MB
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Presentation |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Apr 16, 2026 01:00 PM |
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Notice -
Intertie Schedule Modeling Evolution Initiative Workshop on 4/27/26
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Notice
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EIM Entities
2.68 KB
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WEM regional issues forum - sector contacts |
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Comments - CAISO DMM - Annual Summer Available Transmission Capacity Assessment - Mar 31, 2026
157.02 KB
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Comment |
Annual Summer Available Transfer Capability (ATC) Assessment Mar 31, 2026 09:00 AM |
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Comments - Six Cities - Annual Summer Available Transmission Capacity Assessment - Mar 31, 2026
168.16 KB
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Comment |
Annual Summer Available Transfer Capability (ATC) Assessment Mar 31, 2026 09:00 AM |
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Comments - PG&E - Annual Summer Available Transmission Capacity Assessment - Mar 31, 2026
200.30 KB
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Comment |
Annual Summer Available Transfer Capability (ATC) Assessment Mar 31, 2026 09:00 AM |
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Comments - CPUC - Annual Summer Available Transmission Capacity Assessment - Mar 31, 2026
179.69 KB
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Comment |
Annual Summer Available Transfer Capability (ATC) Assessment Mar 31, 2026 09:00 AM |
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Notice -
Extended Day-Ahead Market Congestion Revenue Allocation Stage 2: Analysis paper posted
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Notice
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Notice -
Business Practice Manual Change Management meeting on 4/28/26
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Notice
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Video - Parallel Operations - Apr 13, 2026
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Video and Audio |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Apr 13, 2026 09:00 AM |
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Presentation - Parallel Operations - Apr 13, 2026
1.00 MB
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Presentation |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Apr 13, 2026 09:00 AM |
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Presentation - EDAM Congestion Revenue Allocation Phase 2 Briefing - Mar 13, 2026
192.10 KB
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Presentation |
ISO presentations |
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Presentation - Policy Catalog and Roadmap 2026 - Jan 09, 2026
201.62 KB
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Presentation |
ISO presentations |
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Presentation - EDAM Benefits Draft Methodology - Feb 13, 2026
384.94 KB
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Presentation |
ISO presentations |
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Presentation - Price Formation Enhancements - Dec 12, 2025
543.95 KB
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Presentation |
2025 ISO presentations |
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Presentation - 2026 Market Policy Catalog and Roadmap Update - Apr 10, 2026
411.60 KB
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Presentation |
ISO presentations |
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Agenda - Business Practice Manual Change Management - Apr 28, 2026
140.22 KB
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Agenda |
BPM Change Management Proposed Revision Request Review Apr 28, 2026 09:00 AM |
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Notice -
DAME, EDAM & EDAM CAISO CA Participation Rules: Markets Refresher Training
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Notice
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News release -
Joint Virtual Press Conference: Launch of the Extended Day-Ahead Market (EDAM)
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News Release
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Video - Parallel Operations - Apr 09, 2026
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Video and Audio |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Apr 09, 2026 01:00 PM |
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Presentation - Parallel Operations - Apr 09, 2026
1,017.03 KB
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Presentation |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Apr 09, 2026 01:00 PM |
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Notice -
Day-Ahead Market Enhancements: Configurable Parameters Implementation working group meeting on 4/16/26
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Notice
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Video - Settlement User Group - Apr 08, 2026
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Video and Audio |
Settlement User Group Apr 08, 2026 10:00 AM |
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Agenda - Settlement User Group - Apr 08, 2026
771.24 KB
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Agenda |
Settlement User Group Apr 08, 2026 10:00 AM |
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Video - Parallel Operations - Apr 06, 2026
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Video and Audio |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Apr 06, 2026 09:00 AM |
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Presentation - Parallel Operations - Apr 06, 2026
968.24 KB
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Presentation |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Apr 06, 2026 09:00 AM |
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Independent Power Producers and Power Marketers Sector Contacts
8.50 KB
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WEM regional issues forum - sector contacts |
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Video - Annual Summer Available Transfer Capability (ATC) Assessment - Mar 31, 2026
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Video and Audio |
Annual Summer Available Transfer Capability (ATC) Assessment Mar 31, 2026 09:00 AM |
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News release -
Draft transmission plan now available; recommends 38 infrastructure upgrades to meet growing electricity demand
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News Release
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Apr 3, 2026 WEIM Readiness Certification - Power Watch (ER15-861)
1.72 MB
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Filing |
Power Watch - Western Energy Imbalance Market readiness criteria |
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Apr 3, 2026 WEIM Readiness Certification - Black Hills Energy (ER15-861)
2.12 MB
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Black Hills - Western Energy Imbalance Market readiness criteria |
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Final Agenda - WEM Governing Body Meeting - May 20-21, 2025
251.21 KB
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Agenda |
WEM Governing Body Executive Session May 20, 2025 09:00 AM, WEM Governing Body General Session May 20, 2025 01:00 PM |
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Final Agenda - WEM Governing Body Meeting - Jun 18, 2025
138.32 KB
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Agenda |
WEM Governing Body Executive Session Jun 18, 2025 08:30 AM, WEM Governing Body General Session Jun 18, 2025 01:00 PM |
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Video - Parallel Operations - Apr 02, 2026
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Video and Audio |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Apr 02, 2026 01:00 PM |
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Presentation - Parallel Operations - Apr 02, 2026
962.01 KB
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Presentation |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Apr 02, 2026 01:00 PM |
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Video - Market Surveillance Committee General Session - Mar 06, 2026
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Video and Audio |
Market Surveillance Committee General Session Mar 06, 2026 09:00 AM |
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Notice -
Settlements Refresher Training on 4/21/26: DAME, EDAM and EDAM CAISO Balancing Authority Participation Rules
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Notice
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Final Agenda - WEM Governing Body Meeting - Jul 22-23, 2025
165.10 KB
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Agenda |
WEM Governing Body General Session Jul 22, 2025 01:00 PM |
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BPM Change Management Proposed Revision Requests and Updated BPMs as of 3/31/26
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Notice |
Comments due - BPM Proposed Revision Requests (PRRs) 1660 - 1668 Apr 14, 2026 12:00 AM |
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Video - Parallel Operations - Mar 30, 2026
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Video and Audio |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Mar 30, 2026 09:00 AM |
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Presentation - Parallel Operations - Mar 30, 2026
1.84 MB
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Presentation |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Mar 30, 2026 09:00 AM |
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Notice -
Business Practice Manual revision update: Withdrawal of proposed revision requests 1656, 1658, and 1659
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Notice
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Notice -
BPM change management: Proposed revision requests and updated BPMs posted as of 3/31/26
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Notice
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Notice -
2026 Market Policy Catalog and Roadmap Process: prioritization workshop on 4/8/26
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Notice
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Presentation - Annual Summer Available Transfer Capability (ATC) Assessment - Mar 31, 2026
2.50 MB
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Presentation |
Annual Summer Available Transfer Capability (ATC) Assessment Mar 31, 2026 09:00 AM |
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Notice -
WEM Governing Body, Joint, ISO Board of Governors, DMM Oversight Committee and Audit Committee: updated 2026 meeting schedule posted
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Notice
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WEIM - Transfer - Resource Relinquishing Scheduling Coordinator - Letter Template
48.67 KB
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Form/Template |
WEIM resource onboarding procedure |
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Video - Business Practice Manual Change Management - Mar 26, 2026
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Video and Audio |
BPM Change Management Proposed Revision Request Review - Day 3 Mar 26, 2026 09:00 AM |
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Notice -
Extended Day-Ahead Market Congestion Revenue Allocation Phase 2: Working group call on 4/17/26; draft schedule released
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Notice
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Notice -
Storage Design and Modeling: Additional Headroom Limit examples posted, comment deadline extended to 4/3/26
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Notice
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Western Energy Imbalance Market Procedure for Non-Participating and Participating Resources
460.30 KB
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WEIM resource onboarding procedure |
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Video - Business Practice Manual Change Management - Mar 25, 2026
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Video and Audio |
BPM Change Management Proposed Revision Request Review - Day 2 Mar 25, 2026 01:00 PM |
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Video - Settlement User Group - Mar 26, 2026
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Video and Audio |
Settlement User Group Mar 25, 2026 10:00 AM |
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Agenda - Settlement User Group - Mar 25, 2026
789.44 KB
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Agenda |
Settlement User Group Mar 25, 2026 10:00 AM |
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EDAM Transfer System Resource (TSR) Definition Template
67.42 KB
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Form/Template |
Onboarding resource guides |
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Video - Business Practice Manual Change Management - Mar 24, 2026
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Video and Audio |
BPM Change Management Proposed Revision Request Review - Day 1 Mar 24, 2026 10:30 AM |
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Video - ISO Board of Governors Meeting - Dec 18, 2025
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Video and Audio |
ISO Board of Governors General Session Dec 18, 2025 10:00 AM |
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Decision on Consent Agenda - Attachment 1 - Dec 2025
145.64 KB
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Decision |
ISO Board of Governors General Session Dec 18, 2025 10:00 AM |
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Presentation - Business Practice Manual Change Management - Mar 26, 2026
306.00 KB
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Presentation |
BPM Change Management Proposed Revision Request Review - Day 3 Mar 26, 2026 09:00 AM |
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Presentation - Business Practice Manual Change Management - Mar 25, 2026
386.82 KB
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Presentation |
BPM Change Management Proposed Revision Request Review - Day 2 Mar 25, 2026 01:00 PM |
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Video - Parallel Operations - Mar 23, 2026
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Video and Audio |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Mar 23, 2026 09:00 AM |
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Presentation - Parallel Operations - Mar 23, 2026
1.82 MB
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Presentation |
Parallel Operations - DAME, EDAM, EDAM CAISO Balancing Authority Area Participation Rules Market Simulation and Parallel Ops Meeting Mar 23, 2026 09:00 AM |
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Notice -
Annual Summer Available Transfer Capability Assessment meeting on 3/31/26
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Notice
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Presentation - Business Practice Manual Change Management - Mar 24, 2026
320.21 KB
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Presentation |
BPM Change Management Proposed Revision Request Review - Day 1 Mar 24, 2026 10:30 AM |
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