The CPO® primer course covers all 18 chapters in the PHTA (NSPF®) Pool & Spa Operator™ Handbook in an online training session. There are 8 online lessons associated with the CPO® Certification course. There is a test at the end of each lesson, for which you must achieve a 80% on each, otherwise you have to review material again and retake the test at the end the chapter. r. You have access to an E-book to complete the training. A book will be shipped to you home address at a later date. Due to stay at home orders for COVID-19, there are currently no ship dates for these books. You can take up to 6 months to complete the online. You can sign in and out as many times as you want. Once you complete all the lessons, you are then able to print a certificate of completion for the online portion. Taking CPO® primer does NOT get you a CPO® CERTIFICATION. Online CPO® Primer is NON-REFUNDABLE. You must then attend a 1 Day Online Course or Day 2 of the Two Day class to complete your training and take your exam to become certified.