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  • Outcome
    Exceptional Dispatch was implemented with the new market deployment on April 1, 2009 per the FERC Order received on Feb. 20, 2009. As part of the order, the ISO will publish a monthly Exceptional Dispatch report with FERC, the first of which was published on May 15, 2009. To assist stakeholders in understanding how Exceptional Dispatch is used in the ISO Market, the ISO published a Technical Bulletin on May 13, 2009. The Technical Bulletin also explains instruction type codes and mitigation rules that will be implemented four months after initial deployment on Aug. 1, 2009. — FERC approval: Sept. 2, 2009; Tariff amendment filing: June 27, 2008 (ER08-1178)