New website coming soon!


Many website services are offline until Monday,11/27 when the new webpages will be activated. Registration and scheduling for any BAT practical exam is unavailable until then.

Please contact us on 11/27 if you need any assistance with a website feature. We will email detailed instructions on making your annual renewal fee payment the week of Monday 11/27 when the payment window opens to the email we have on file for BAT and Waterworks Certified Operators.

Change of lnformation Form

Certified BATs must submit this form to notify Washington Certification Services of changes to their contact information. The Waterworks Operator Certification Program will not consider appeals from a BAT that is assessed a renewal late fee, or that does not renew a certificate or meet the professional growth requirement due to failure to report a change or provide a valid email address. Only a home address will be accepted as the mailing address of record. A business or employer address may not be used.

Required Information

* Required Verification Information:


Information Changes

Please fill out all that apply.


Name Change


I authorize Washington Certification Services to make these changes to my current information.