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Triennial Reviews


Northwest Region

The Commission will review each region every three years according to a rotating schedule. The Northwest region, which is made up of NERC Regions WECC-NWPP and WECC-RMPA will be reviewed on the following dates, and every three years thereafter, depending on what type of entity the seller is.

Northwest Region
Northwest Schedule for Filing from Order 697-A
Study Period Filing Period Entities Required to File
December 1, 2013 - November 30, 2014 June, 2016 Transmission Owning Utilities
December 1, 2013 - November 30, 2014 December, 2016
Non-Transmission Owning Utilities
December 1, 2016 - November 30, 2017 June, 2019 Transmission Owning Utilities
December 1, 2016 - November 30, 2017 December, 2019

Non-Transmission Owning Utilities
December 1, 2019 - November 30, 2020 June, 2022 Transmission Owning Utilities
December 1, 2019 - November 30, 2020 December, 2022 Non-Transmission Owning Utilities
December 1, 2022- November 30, 2023 June, 2025 Transmission Owning Utilities