Summary: Tariff revision for certificate G-48 to recover the increase in the State B&O taxes. On April 1, 2020 the state Business and Occupation tax rate for Service and Other increased from .015 to .0175. The company serves approximately 1,800 residential; 290 commercial; and 12 roll-off customers in Skamania county affected by this change. The last general rate increase became effective June 1, 2016.