NSPF stands for National Swimming Pool Foundation. This nonprofit organization was responsible for educating and certifying pool operators. In 2019, NSPF merged with the Association of Pool & Spa Professionals to form the Pool & Hot Tub Alliance (PHTA). The PHTA is now the governing organization that sets the standards and code of conduct for pool operators, technicians, and service providers. It is responsible for educating, advocating, researching, and promoting professionalism throughout the pool and spa industry. For more information, go to https://www.phta.org/