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  • Tariff amendments - filed in 2021
    • Jan 8, 2021 Tariff amendment - hybrid resources phase 2 clarification (ER21-843)
    • Jan 27, 2021 Tariff amendment - EIM enhancements on real-time settlements and base schedule timelines (ER21-955)
    • Feb 17, 2021 Tariff amendment - expedite execution - FERC Order No. 831 (ER21-1164)
    • Feb 22, 2021 Tariff amendment - enhance pricing parameters - FERC Order No. 831 (ER21-1192)
    • Mar 3, 2021 Tariff amendment - variable operations and maintenance cost (ER21-1266)
    • Mar 9, 2021 Tariff amendment - reconciliation filing (ER21-1304)
    • Mar 18, 2021 Tariff amendment - Maximum Import Capability (ER21-1469)
    • Mar 19, 2021 Tariff amendment - non-generator resource participation agreements - ESDER 4 (ER21-1487)
    • Mar 26, 2021 Tariff amendment - 2021 Summer Readiness (ER21-1536)
    • Mar 29, 2021 Tariff amendment - resource adequacy (RA) enhancements (ER21-1551)
    • Apr 28, 2021 Tariff amendment - load, export, and wheeling (ER21-1790)
    • Jul 19, 2021 Tariff amendment - FERC Order No. 2222 (ER21-2455)
    • Jul 23, 2021 Tariff amendments - NAESB standards (ER21-2495 & ER21-9246)
    • Jul 27, 2021 Tariff amendment - Supercluster Interconnection Procedures (ER21-2530)
    • Aug 3, 2021 Tariff amendment - EIM base schedule below minimum load (ER21-2593)
    • Aug 27, 2021 Tariff amendment - ESDER 4 (ER21-2779)
    • Sep 8, 2021 Tariff amendment - hybrid resources & co-located resources (ER21-2853)
    • Sep 8, 2021 Tariff amendment - clarification for term "business day" (ER21-2854)