The Massachusetts Interscholastic Athletic Association (MIAA) is the governing body for interscholastic sports among public and most private secondary schools in Massachusetts. Member schools are grouped into leagues and conferences, like the Bay State Conference, which handle regular-season scheduling, while the MIAA oversees postseason tournament play statewide.1

Resources:

  1. https://en.wikipedia.org/wiki/Massachusetts_Interscholastic_Athletic_Association ↩