Amendments

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

Tariff amendments - filed in 2019
- May 14, 2019 Tariff amendment - tariff clarifications (ER19-1837)
- Apr 22, 2019 Tariff amendment - reliability must-run and capacity procurement mechansim enhancements (ER19-1641
- Apr 11, 2019 Tariff amendment - RAAIM exemption extension to planned outages (ER19-1562)
- Apr 11, 2019 Tariff amendment - reliability demand response resource dispatch clarification (ER19-1561)
- Apr 9, 2019 Tariff amendment - exempt certain resource adequacy resources from bid generation (ER19-1542)
- Feb 28, 2019 Tariff amendment - interconnection process enhancements - inverter-based interconnection requirements (ER19-1153)
- Feb 7, 2019 Tariff amendment - specify minimum requirements for interconnection requests (ER19-1013)
- Jan 31, 2019 Tariff amendment - commitment cost enhancements phase 3 and reliability services clarifications (ER19-951)
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 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