Certified Water Technologist (CWT) by the Association of Water Technologies

The Association of Water Technologies offers a Certified Water Technologist (CWT) program. The CWT certification represents the highest professional credential in the industrial and commercial water treatment field. The CWT designation ensures that water professionals possess a core body of knowledge and extensive professional experience across all aspects of water treatment.

For more information about the credential, visit the AWT website. You may also contact AWT help@awt.org.

Application information

Before scheduling an examination appointment with Pearson, you must have already

• Read the exam handbook: awt.org/become-certified
• Filled out the exam registration form, see page 11
• Email the registration form to help@awt.org
• Receive an Authorization-to-Test (ATT) email

Scheduling your exam appointment

Your Authorization‑to‑Test (ATT) email includes the date range during which you can take your exam. You are responsible for booking your appointment within that timeframe.

Create your Pearson account

You will need a Pearson account before you can schedule your exam. When creating your account, use the same name, phone number, and email address that you provided to AWT in your application. You will also be asked to enter your 20‑character PTI ID, found in the ATT email.

If you experience any issues with your account, the quickest way to connect with a customer service agent is through the chat feature available on this page.

Schedule, reschedule, or cancel your appointment

You are responsible for managing your own exam appointment. Appointments can be scheduled up to one business day in advance, and test center availability is offered on a first‑come, first‑served basis.

After you schedule

Once your appointment is confirmed, Pearson will send you a confirmation email that includes your exam date and time, the test center address, and important policies to review before test day. You will receive a confirmation email whenever you schedule, reschedule, or cancel an appointment. If you do not receive a confirmation email, please sign in to your Pearson account to verify your appointment status.