A Fraternity chapter in general is the lodge-based organizational structure of a fraternity. In Tau Gamma Phi, the Chapter is the basic organizational structure of the fraternity. A Tau Gamma Phi Chapter or better called as Triskelion Chapter is the base organization of the Fraternity as a whole. This is where the fraternal activities and events happen, where the recruitment starts until an individual becomes a full-pledge member or the so-called full-fledged Triskelion. Each Triskelion Chapter is autonomous and is guided by City/Municipal Council and Provincial Council up to the Regional Council and/or Metropolitan Council they belong, thus, every individual Triskelion has a Chapter of origin where they came from. A Tau Gamma Phi member can also have an affiliated Chapter or Welcoming Chapter where each must comply with the residency requirements and Welcome Rites of the Welcoming Chapter. The difference between the basic Chapter from any other organizational body is that the Chapters are a source of a decision in terms of governance, activities, man-power and initial resources
