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Home > Stay Informed > Stakeholder Processes > Tariff clarifications filing

Tariff clarifications filing process

This stakeholder process is to make clarifying changes to the ISO tariff and to review the proposed changes before making an amendment filing with the Federal Energy Regulatory Commission. This review will span the entire Tariff and includes typographical changes, adding detail, and making inter-tariff reference corrections.


Process status

FERC approval: October 29, 2018

Current meeting

Market notices


  • Tariff clarifications filing process - filings and orders
    • Dec 17, 2018 Tariff amendment - custom load aggregation point clarification (ER19-582)
    • Dec 6, 2018 Tariff amendment - greenhouse gas allowance price inputs and fallback logic clarification (ER19-508)
    • Jun 14, 2018 Tariff amendment - tariff clarifications (ER18-1787)
  • Tariff clarifications filing process - tariff