Summary: Revises W.D.P.U No. 1, to delete rotary dial and touch calling services effective September 7, 2017. Washington Administrative Code (WAC) 480-80-123(3)(c), does not require statutory notice when a change to a telecommunications tariff does not affect the rates or charges paid by customers. This tariff filing is an administrative cleanup as these are obsolete services that have not been offered for many years.