PHTA's Certified Pool & Spa Operator and NRPA's Aquatic Facility Operator are separate credentials. Review the current official path first, then use VoltExam as independent supplemental practice.
No form or payment is submitted on this page. Checkout confirms the selected trade and plan before purchase.
Official path check
Sources checked October 6, 2026. Course availability and local acceptance can change.
The web preview, paid web bank, and native app are separate product populations. Their counts should not be added together or treated as official exam volume.
Paid web bank
646
Distinct Pool Operator questions within VoltExam's paid all-trades web plans.
Review monthly web access →Native app catalog
700
Recorded native-app questions. The native app is a separate product and purchase from web access.
View native app details ↗Use these categories to find weak areas after checking the current handbook and course materials for your chosen credential.
These plans are for VoltExam web access. They do not purchase a PHTA or NRPA course, exam, credential, or native app.
$9.99/mo
Paid web access across all available trades, including the 646-question Pool Operator bank. Checkout shows current eligibility and charge timing.
Review monthly plan$59.99 once
One-time web access across all available trades. The native app remains separate.
Review lifetime planCPO means Certified Pool & Spa Operator. PHTA says candidates must complete the CPO course and pass the CPO exam. The current course page describes a 16-hour classroom or blended route, and a current PHTA course listing describes a 50-question open-book exam. VoltExam is independent supplemental practice and is not the course or exam provider.
AFO means Aquatic Facility Operator. NRPA describes a separate 50-question, open-book exam covering water chemistry and disinfection, mechanical systems and operations, health and safety, daily operations, and maintenance. NRPA offers course-based and exam-only paths.
PHTA currently says CPO certifications are valid for five years from the end of the month of issuance. NRPA currently says AFO certification is valid for five years. Check the issuing organization for your own renewal date and requirements.
No. The current public PHTA pages reviewed by VoltExam support the course path, a 50-question open-book exam in a current course listing, and five-year validity, but they do not publish a CPO candidate passing score or first-attempt pass rate. Practice results are for choosing review topics, not predicting certification.
They are separate credentials from separate organizations. Confirm the credential, delivery format, current handbook, and any employer or local requirements that apply to you before choosing a path.
The signed-out web route provides a 25-question preview. Paid web access currently reaches 646 distinct Pool Operator questions. The separate native app catalog records 700 questions. These are different product populations, not official PHTA or NRPA exam items.