Amendments
All publicly available California ISO-authored tariff amendment filings are posted here in reverse chronological order.
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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 February 9, 2006 filing in Docket No. ER06-615-000 for the California ISO's Market Redesign and Technology Upgrade (MRTU)