In accordance with the new North American Energy Standards Board (NAESB) E-Tag requirements, version 1.8.3, CAISO is requesting that all E-Tags be submitted in accordance beginning Tuesday, October 10, 2017 at midnight Central Standard Time (CST). The current E-Tag specification 1.8.2 will run in parallel until Tuesday, November 7, 2017 at midnight CST. On Monday, November 6, 2017 at 2200 PST, any E-Tags that do not have “CISO” in the MO column when “CISO” is the TSP will be denied, as the previous specification will be retired.

For more information visit: CAISO E-TAG Updates

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