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Home > Rules > Regulatory > Amendments

Amendments

All publicly available California ISO-authored tariff amendment filings are posted here in reverse chronological order. 

  • Tariff amendments - filed in 2021
    • Jan 8, 2021 Tariff amendment - hybrid resources phase 2 clarification (ER21-843)
  • Tariff amendments - filed in 2020
    • Nov 20, 2020 Tariff amendment - pseudo-ties of shared resources (ER21-447)
    • Oct 23, 2020 Tariff amendment - excess behind the meter production (ER21-190)
    • Oct 15, 2020 Tariff amendment - grid management charge (GMC) cost of service study (ER21-112)
    • Sep 18, 2020 Tariff amendment - settlement rules post day-ahead exceptional dispatch scheduled (ER20-2922)
    • Sep 16, 2020 Tariff amendment - hybrid resources (ER20-2890)
    • Aug 6, 2020 Tariff amendment - settlement timeline (ER20-2617)
    • Aug 3, 2020 Tariff Amendment - petition for penalty assessments & non-refundable interconnection security 2019 (ER20-2604)
    • Jul 16, 2020 Tariff amendment - energy storage and distributed energy resource stakeholder (ESDER) - Phase 3B (ER20-2443)
    • Jul 10, 2020 Tariff amendment - tariff clarifications filing (ER20-2374)
    • Jul 9, 2020 Tariff amendment - commitment costs and default energy bid enhancements (CCDEBE) (ER20-2360)
    • May 27, 2020 Tariff amendment - proxy demand resources to provide flexible RA capacity (ER20-1904)
    • May 22, 2020 Tariff amendment - intertie deviation settlement (ER20-1890)
    • Apr 17, 2020 Tariff amendment - clarify resource adequacy obligations from commitment costs enhancements Phase 3 (ER20-1592)
    • Apr 10, 2020 Tariff amendment - petition for limited waiver of tariff provisions - RAAIM (ER20-1552)
    • Mar 13, 2020 Tariff amendment - reconcile overlapping approved tariff records (ER20-1281)
    • Feb 25, 2020 Tariff amendment - capacity procurement mechanism soft offer cap (ER20-1075)
    • Jan 2, 2020 Tariff amendment - implement deliverability assessment methodology enhancements (ER20-732)
  • Tariff amendments archive
    Tariff amendments that are archived may still have reporting requirements that are filed regularly with FERC. These filed reports will appear in the archive.
    • Tariff amendments - filed in 2019
    • Tariff amendments - filed in 2018
    • Tariff amendments - filed in 2017
    • Tariff amendments - filed in 2016
    • Tariff amendments - filed in 2015
    • Tariff amendments - filed in 2014
    • Tariff amendments - filed in 2013
    • Tariff amendments - filed in 2012
    • Tariff amendments - filed in 2011
    • Tariff amendments - filed in 2010
    • Tariff amendments - filed in 2009
    • Tariff amendments - filed in 2008
    • Tariff amendments - filed in 2007
    • Tariff amendments - filed in 2006
    • Tariff amendment - Market Redesign and Technology Upgrade (MRTU) (ER06-615)
      California ISO's February 9, 2006 filing in Docket No. ER06-615-000 for the California ISO's Market Redesign and Technology Upgrade (MRTU)
    • Start-up tariff amendments

California ISO's Electric Tariff Filing to Reflect Market Redesign and Technology Upgrade (MRTU)

California ISO's February 9, 2006 filing in Docket No. ER06-615-000 for the California ISO's Market Redesign and Technology Upgrade (MRTU)