
Western Area Power Administration (WAPA)
Open Access
Transmission Tariff (OATT) Contacts
For questions related to WAPA's OATT, please contact the
applicable WAPA Regional Transmission Provider​ representative
below. Transmittal of Network Integration Transmission
Service (NITS) submissions should be sent to the Contacts and
other emails addresses listed for that specific Regional office.
- Desert
Southwest Region (DSW, TSP ID = WALC): John Steward at
602-605-2774 (steward@wapa.gov);
- Rocky
Mountain Region (RMR, TSP ID = LAPT) and Colorado River
Storage Project (CRSP, TSP ID = CRCM): John Steward at
602-805-6784 (steward@wapa.gov);
- Sierra
Nevada Region (SNR, TSP ID = WASN): Cory Danson at
279-221-0662 (danson@wapa.gov)
or Ira Witherspoon at 279-221-0737 (withersp@wapa.gov);
- Upper
Great Plains Region (UGP, TSP ID = WAPA): Benjamin Hammer
at 406-831-5716 (Hammer@wapa.gov)
or (UGPWAPATBU@wapa.gov)
05/09/2025