Update on AWTO Exam Testing During the COVID-19 Pandemic

The Advanced Water Treatment Operator™ (AWTO®) certification computer-based delivery options are limited during shelter-in-place orders during the COVID-19 pandemic.

Professional testing centers operated by PSI are located throughout CA, NV and elsewhere. They are preparing to reopen as local and state jurisdictions permit.

The safety and disinfection processes are being updated.

You will find the latest information on PSI testing service here >

AWTO Exam Applications are Welcome

We are still accepting AWTO exam applications. We are not processing applications until we get the okay to do so by PSI.

Once approved you have one year to take the exam before your application expires. Any necessary adjustments due to COVID-19 will be announced here.

Learn more and apply here >

COVID-19 Water/Wastewater Resources