| Tuesday May 12, 2026 |
| 05:00 PM |
IMPORT RIGHTS - ISO posts the remaining available Import Rights after Monthly auction |
| 05:00 PM |
MONTHLY AUCTION - ISO posts results of Jun Monthly Auction |
| Wednesday May 13, 2026 |
| 08:00 AM |
IMPORT RIGHTS - First Come First Serve - begin to submit requests |
| 05:00 PM |
AFFILIATES - Deadline to select or de-select affiliate names for Jun ICAP Market |
| 05:00 PM |
DMNC - Deadline to submit DMNC data for Existing Generators to ensure can be used for Jul |
| 05:00 PM |
IMPORT RIGHTS - First Come First Serve - deadline to submit requests |
| Thursday May 14, 2026 |
| 08:00 AM |
IMPORT RIGHTS - First Come First Serve - begin to confirm requests |
| 08:00 AM |
SCR - Aggregation Management Period for Jun Opens |
| 08:00 AM |
SCR - Strike Price Management Period for Jun Opens |
| 05:00 PM |
IMPORT RIGHTS - First Come First Serve - deadline to confirm requests |
| 05:00 PM |
IMPORT RIGHTS - ISO will announce if Import Rights are fully allocated/returns allowed |
| 05:00 PM |
MITIGATION - Deadline to submit Going Forward Costs for generators in NYC for Aug Spot Mkt |
| 05:00 PM |
TRUE UP - True-Up Challenge Period Closes. |
| Friday May 15, 2026 |
| 08:00 AM |
IMPORT RIGHTS - ISO notifies Requestors of Priority and if Import Rights Requests were accepted or rejected |
| 05:00 PM |
IMPORT RIGHTS - ISO posts the remaining available Import Rights |
| 05:00 PM |
SCR - Aggregation Management Period for Jun Closes |
| 05:00 PM |
SCR - RIPs deadline to view and take action on the ACL data requests for Jun |
| 05:00 PM |
SCR - Strike Price Management Period for Jun Closes |
| Monday May 18, 2026 |
| 05:00 PM |
EXTERNAL TRANSACTIONS - Deadline to submit MIS transaction IDs for Import Rights, Exports, and UDRs |
| 05:00 PM |
TRUE UP - Deadline for TOs to provide final true-up load shift (actual data) for LSE activity 3 months prior |
| Tuesday May 19, 2026 |
| 05:00 PM |
IMPORT RIGHTS - External Bilaterals confirmed for MIS transactions IDs received |
| Wednesday May 20, 2026 |
| 05:00 PM |
CERTIFICATION - Deadline for Certification for LSEs and Suppliers for Jun |
| 05:00 PM |
GADS - Deadline for Suppliers to submit GADS data for Apr activity |
| 05:30 PM |
MITIGATION - Default Reference Price |
| Thursday May 21, 2026 |
| 08:00 AM |
SCR - Enrollment Period for auction month of Jul Opens |
| 08:00 AM |
SCR - New Aggregation ID Request Period for Jul Opens |
| 08:00 AM |
SCR - Period Opens for TOs to import/modify add backs for non-provisional resources newly enrolled for auction month of Jul |
| 05:00 PM |
LOAD SHIFT - Deadline for TOs to provide daily load shift (customer switching) for May |
| Friday May 22, 2026 |
| 08:00 AM |
SPOT MARKET AUCTION - Offer period opens for Jun Spot Market Auction |
| 05:00 PM |
IMPORT RIGHTS - Allocated Import Rights w/o MIS transaction IDs entered into Spot Mkt Auction @ $0.00 |
| Monday May 25, 2026 |
| 12:00 AM |
HOLIDAY - NYISO CLOSED |
| Tuesday May 26, 2026 |
| 05:00 PM |
SPOT MARKET AUCTION - Offer period closes for Jun Spot Market Auction |
| Thursday May 28, 2026 |
| 05:00 PM |
EXTERNAL TRANSACTIONS - Deadline to submit MIS transaction IDs for ECRs & External Spot awards |
| 05:00 PM |
SCR/EDRP - Deadline to update DRIS contacts to be used for event/test notifications for Jun |
| 05:00 PM |
SPOT MARKET AUCTION - ISO posts results of Jun Spot Market Auction |
| Friday May 29, 2026 |
| 08:00 AM |
SCR - MPs can begin to import Incremental ACL Verification data from Winter 2025-2026 |
| 08:00 AM |
SCR - MPs can begin to import Provisional ACL Verification data from Winter 2025-2026 |
| 08:00 AM |
SCR - MPs can view and export SCR Load Zone Peak Hours from Winter 2025-2026 |
| 08:00 AM |
SCR - RIPs may begin to report resources with partial PTID Sales for Jun in DRIS |
| Sunday May 31, 2026 |
| 05:00 PM |
IMPORT RIGHTS - Deadline for returns for Jul obligation if ISO announced fully allocated prior to that Certification Period opening |
| 11:59 PM |
AGG ENROLLMENT - Enrollment Period for Jul Closes |
| 11:59 PM |
DMNC - Summer DMNC Out Of Period Test Period Ends |
