Backflow Assembly Tester

Washington Certification Services
BAT Validation Card

Enter the first initial of your first name and your full last name in the space below.

See example Enter the first initial of your first name and your full last name like the example below:

Username: JDoe

 

Enter the last four digits of your social security number followed by your BAT number (including the letter B).

See example To create your password, enter the last 4 digits of your SSN and your BAT number including the letter B as shown in the example below:

Password: 6155B1253