CPO Study Guide 2026
Everything you need to pass the CPO exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
CPO exam key facts
- The PHTA CPO exam is a 50-question open-book exam given during the last part of the second day of the CPO course. Source
- The in-person CPO course and exam at PSP Expo 2026 cost $625 for PHTA members and $750 for non-members at early-bird pricing. Source
- PHTA CPO certifications are valid for five years from the end of the month of issuance; for example, a CPO issued on March 2, 2025 expires March 31, 2030. Source
📋 CPO Exam Format at a Glance
📚 CPO Topics to Study (69)
✍️ Sample CPO Questions & Answers
1. Which of the following is an example of proactive client communication by a CPO?
Proactive communication through newsletters or announcements builds client relationships and keeps patrons informed before problems arise.
2. What is the standard turnover rate required for most public swimming pools?
Most public pools require a 6-hour turnover rate, meaning the entire pool volume must pass through the filtration system at least once every 6 hours.
3. Under ADA requirements, what must a public pool with 300 or more linear feet of pool wall provide?
The ADA Standards for Accessible Design require pools with 300 or more linear feet of pool wall to have at least two accessible means of entry, such as a pool lift and a sloped entry.
4. A CPO is training a new staff member on ORP (Oxidation-Reduction Potential) monitoring. A reading of 650 mV is recorded. What does this indicate about the pool's disinfection status?
Most health authorities recommend a minimum ORP of 700–750 mV to ensure effective disinfection; a reading of 650 mV suggests the disinfection capacity may be inadequate.
5. Under professional standards, when a pool's water chemistry is found to be outside acceptable ranges, the operator's FIRST action should be:
Operators must promptly assess out-of-range readings, take corrective action by adjusting chemistry, verify the correction by retesting, and document all actions in the facility log.
6. When must a public pool operator report a suspected Recreational Water Illness (RWI) outbreak to public health authorities?
Suspected RWI clusters must be reported to public health authorities promptly so that investigations can begin before additional patrons are exposed.
🎯 Free CPO Practice Tests
📖 CPO Guides & Articles
What Practice Test Geeks adds beyond an AI chat for CPO
An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:
- A timed, full-length CPO mock exam — 50 questions in 120 minutes with a 75% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
- A fixed CPO question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
- Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
- A printable CPO cheat sheet you can print or save as a PDF.
- CPO flashcards built from the same question bank.
- Free CPO practice tests with the correct answer shown after each question.
How this page was made: written with AI tools. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- phta.org — Exam dates, fees, exam format, score release, renewal, score validity, eligibility · verified Oct 2026