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Specialist support and PSI test prep resources

Taking a PSI computer based test (CBT)? Find your PSI test and prep here to help your test day go smoothly. Our program-specific support specialists are on hand to answer any of your questions.

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Use our simple search function to find your test/exam. Access test taker guides and the latest information on testing services, locations, fees and booking options for your chosen test.

PSI test,PSI test support,PSI test resources,PSI test prep
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AAT

All AAT Exams

Program Details

Water/Wastewater

Wastewater Treatment Level D (WW-D)

Water/Wastewater

Wastewater Treatment Level C (WW-C)

Water/Wastewater

Wastewater Treatment Level B (WW-B)

Water/Wastewater

Wastewater Treatment Level A (WW-A)

Water/Wastewater

Drinking Water Treatment Level D (DW-D)

Water/Wastewater

Drinking Water Treatment Level C (DW-C)

Water/Wastewater

Drinking Water Treatment Level A (DW-A)

Water/Wastewater

Concentrated Animal Feeding Operations Level A (CAFO-A)

Water/Wastewater

Concentrated Animal Feeding Operations Level B (CAFO-B)

Water/Wastewater

Drinking Water Distribution Level 1 (DS-1)

Water/Wastewater

Drinking Water Distribution Level 3 (DS-3)

Water/Wastewater

Drinking Water Treatment Level B (DW-B)

Water/Wastewater

Drinking Water Distribution Level 2 (DS-2)

Water/Wastewater

RMWQAA Analyst Exam Level 1

Water/Wastewater

RMWQAA Analyst Exam Level 3

Water/Wastewater

RMWQAA Analyst Exam Level 2

Water/Wastewater

TWUA Laboratory/Manager Supervisor Level A

Water/Wastewater

PSI test support

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You’ve worked hard to study for your test. By taking some simple steps to prepare, you can shine on the day. Access all the PSI test resources you need to ensure your test day is as stress-free as possible.

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Realize your potential with the right support tools

Shop the PSI Online Store for test prep to help you build your confidence and reach your full potential on test day.

What our test takers say

"Thank you PSI for your help. I really appreciated your time and being so knowledgeable about what you do. "

“The PSI representative that helped me was very kind and courteous, especially so early in the morning. They were very helpful in fixing my problem so that I could get registered for my test. I'm very appreciative and especially of their positive attitude - it really goes a long way.”

“Thank you PSI for actually providing customer service by resolving my issue and caring about the customer!”

“The customer service representative at PSI resolved my issue in minutes! They were understanding, diligent in getting the issue resolved, and showed that they actually cared about me.”

Dreams like yours deserve rigor

We understand you are not just taking a test. You are pursuing a dream. One you believe is worth working for.

We believe that too. Which is why we work tirelessly to ensure scientific precision, the latest technology and operational expertise are all on the side of your dreams.

psi test taker experience

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Whatever your testing needs, our friendly, experienced team is here to provide guidance and answer your questions.