Backflow Assembly Testers
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Certification Services at Green River Community College in Auburn
administers the State of Washington’s Backflow Assembly Tester (BAT)
certification program and examinations based on regulations, policies,
and procedures established by Washington State Department of Health (DOH)
in cooperation with the Waterworks Operator Certification Advisory
Committee.
DOH is responsible for oversight of the BAT certification program
and for enforcement activities.