Washington Administrative Code
Title 480 - Utilities and Transportation Commission
Chapter 480-85 - Electric and natural gas cost of service
Section 480-85-040 - Minimum filing requirements
Current through Register Vol. 24-06, March 15, 2024
(1) All cost of service study results must be filed in the following forms, available from the commission: Electric cost of service template; and, gas cost of service template. In addition, the following must be provided contemporaneously with all cost of service studies:
(2) Companies that provide electric and natural gas service must file a cost of service study for their electric and natural gas operations. If a company providing electric and natural gas service files a general rate case for only one of its services, the company must apportion the common costs shared by both services in lieu of filing a cost of service study for the service not included in the general rate case.