Washington Certification Services

Washington Certification Services


  • Get Certified as a BAT Icon Get Certified as a BAT
  • Take a Growth Exam Icon Take a Professional Growth Exam
  • BAT Financial Awards Icon BAT Financial Awards
  • BAT Financial Awards Icon BAT Certification Renewal and Validation Cards
  • BAT Certification Status Icon BAT Certification Status
  • BAT Forms Icon BAT Forms
  • Hire a BAT Icon Hire A BAT
  • BAT Employers & Water Purveyors BAT Employers & Water Purveyors
  • WCS Links Icon Links
  • Contact Washington Certification Services (WCS) Contact WCS

Backflow Assembly Tester

Professional Growth Requirement

The Waterworks Operator Certification regulation, WAC 246-292-090(4), requires the holder of a Backflow Assembly Tester (BAT) certification to demonstrate professional growth by passing the Department of Health’s (DOH) BAT professional growth examination during each reporting period. Washington Certification Services schedules and administers the professional growth examination.

All certified BATs are assigned a professional growth reporting period based on their original certification date. DOH allows each BAT a minimum of three years to meet the professional growth requirement by passing the professional growth examination. This examination may be taken at any time during the reporting period dates, but must be passed by the reporting period deadline date.

If an applicant fails the professional growth examination they will be required to reapply, pay all applicable fees, and take the examination again. DOH highly recommends that individuals refrain from testing until such time as they have passed the professional growth examination. However, it is not required that they stop testing unless they are notified that they no longer hold an active certification.

The following timetable indicates when a certified BAT must meet the professional growth requirement.

If Your Original Certification Date Is Then You Must Meet The Professional Growth Requirement Between:
Before 1/1/2019 1/1/2023 and 12/31/2025 and in each 3-year reporting period thereafter.
On or After 1/1/2019 Your original certification date and 12/31/2025 and in each 3-year reporting period thereafter.

About the BAT Professional Growth Examination

BAT Professional Growth Examination Schedule

Apply for a BAT Professional Growth Examination

Disability Accommodation Policy
Copyright © Washington Certification Services. All Rights Reserved.
Back to Top