Become a Certified Service Technician

CST Logo

After completing this pool technician certification course, you will be able to:

  • Explain common problems with pool finishes and how to repair them
  • Keep pools running more efficiently with a better understanding of circulation, filtration, hydraulics and electricity
  • Grow your practical knowledge and gain troubleshooting skills and resources
  • Distinguish yourself as an experienced and knowledgeable service technician

Who Should Apply?

Prerequisites include:

  • 1–2 years of industry experience
  • 24 hours of continuing education credit
  • Pass 100-question, closed book, multiple-choice exam


The CST certification exam costs $115.

Test Locations

All APSP certification exams are proctored and can be administered at an APSP sanctioned educational event where testing is scheduled or through an authorized testing center. Candidates must submit a completed application at least 14 days in advance of their testing date.

To test at an APSP national, regional or chapter-sponsored education and testing event: Access a list of upcoming events here.

To test at a local PSI center: View details online.

To test at a community college or university in your area: Proctored exams must be taken at an accredited college or university. You might need to pay an additional exam proctor fee, which could be up to $40. If you test at a college or university, you are responsible for:

  • Scheduling an appointment for testing.
  • Submitting the application at least two weeks before your exam date to make sure you receive test materials in time.
  • Providing APSP University with your name, mailing address and exam date.

APSP does not maintain a list of testing centers. We rely on local community colleges and libraries that offer their proctoring services to the general public.

APSP CST Course Material

Course Materials and Forms

  • Application
    You must submit a completed application at least two weeks before your testing date.
  • Exam Retest Form
    If you didn’t pass the exam, you can schedule a retest within a year of your testing date without needing to take the course again.
  • APSP Service Tech Manual
    Before ordering, check with APSP University to see if the course includes the materials.
  • CST Certified Service Technician Workbook
    Before ordering, check with APSP University to see if the course includes the materials.
  • Certification Policy Handbook
    Find many of the answers to your certification questions in our Certification Policy Handbook.

Pool and Spa Technicians in Long Island, NY 

Due to licensing requirements, an exemption for the CST course, known as the CST Challenge Exam, is available for pool and spa technicians located in the Long Island, New York, area. Download the CST Challenge Exam application.

Maintain Your Certification

Learn more about maintaining your status as an APSP-certified individual and continue to enjoy the associated benefits.

From Our Members

Noel Conley

Our industry has changed so much over the last five or 10 years. If you're not constantly getting education, reading and learning more, you won't know the technology. If you want to be a professional, you have to have education.

Noel Conley, CSP, CST
Miracle Pool Service
Garland, TX