The term PT. OF NCAA is an acronym for the phrase 'President of the NATIONAL Collegiate Athletic ASSOCIATION'. The first part of the acronym, 'NATL', stands for 'NATIONAL', and the second part, 'ASSN', stands for 'ASSOCIATION'. The NATIONAL Collegiate Athletic ASSOCIATION is a non-profit organization that regulates athletes and sports programs in the United States and Canada. The President of the NCAA is responsible for overseeing the organization's operations and ensuring that its rules and regulations are followed.