Backflow Assembly Tester

BAT Certification Status

Select the box below for a list of all individuals currently holding a valid Washington State Backflow Assembly Tester (BAT) certification.

Search All BATs Certified in Washington

Select a box below to view individual BAT certification status reports containing the following information.

  • Certification Date - Date BAT cerification was issued
  • Current Professional Growth Reporting Period - You must pass the BAT professional growth examination within these dates.
  • Professional Growth Examination Passed Date - If you have met the requirement for the current period, the report will show your completion date. If you have not met the requirement this field will be blank.