Day 1 of the online course covers all 18 chapters in the NSPF® Pool & Spa Operator Handbook in an online training session. There are 8 online lessons associated with the CPO® Certificatin course. There is a test at the end of each lesson, for which you must achieve a 100% on each, otherwise you have to review material again and retake the test. 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 Day 1 Online does not get you a CPO® CERTIFICATION. Online CPO® Certification is NON-REFUNDABLE.