The Department of Revenue of the State of Washington is hereby authorized to access Pierce County's tax information, as set forth in RCW 82.32.330 and RCW 84.40.340, upon substantially the same conditions as tax information is authorized to be disclosed by the Department of Revenue to Pierce County taxing officials, pursuant to RCW 82.32.330, 84.40.340, and 42.17.310, as each now exists or is hereinafter amended. The Pierce County Executive is authorized to execute agreements on behalf of the Pierce County Assessor-Treasurer and the Director of the Pierce County Department of Finance with the Department of Revenue, consistent with the access herein granted. Tax information received by Pierce County pursuant to such agreements is exempt from disclosure under the Public Records Act remains privileged and confidential pursuant to RCW 82.32.330.