Western Area Power Administration (WAPA)

Open Access Transmission Tariff (OATT) Documents

Last Update: June 23, 2016, General updates to Logo, Addition of Note 1 regarding the Upper Great Plains Region.

Recent Previous Updates:
May 18, 2016, Updates to WAPA OATT Revision Filings / FERC Orders listings.
September 5, 2013, Updates to EIS and EA Environmental Review Agreement Templates.
May 13, 2013, Updates include posting of OATT files associated with 4/12/13 OATT Revision Filing.

DISCLAIMER: WAPA's Open Access Transmission Tariff (OATT) is filed with the Federal Energy Regulatory Commission (FERC). WAPA's filings and associated FERC orders establish the rates, terms and conditions of service.  These documents are prepared for the convenience of WAPA's customers and any conflicts between these documents and the version filed shall be resolved in favor of the version filed.

FERC provides a tariff viewer to help the public review tariff provisions electronically at the following URL: http://etariff.ferc.gov/TariffList.aspx.

EFFECTIVE Business Practices Common to all Western Regions Note 1.  The Upper Great Plains (UGP) Region of WAPA joined the Southwest Power Pool, Inc. (SPP) as a transmission owner and transferred functional control of all of its eligible transmission facilities to SPP on October 1, 2015.  Transmission service over those UGP Regional transmission facilities is available solely under the SPP Open Access Transmission Tariff (SPP Tariff).  Ancillary services offered by the UGP Region as a Balancing Authority operator are also solely available under the SPP Tariff.  Therefore, certain WAPA OATT provisions may not be currently applicable in the UGP Region.