|Middle Atlantic Corporation|
|Classification||NCAA Division III|
|Sports fielded||22 (11 men's, 11 women's)|
|States||3 - New Jersey, New York, Pennsylvania|
|Other Names|| Middle Atlantic States Collegiate |
The organization is divided into two main conferences, the Commonwealth Conference and the Freedom Conference. A third conference named the Middle Atlantic Conference combines members from both conferences and is used for certain sports that only a smaller set of members participate in.
Throughout its history, the organization has had at least 50 different members associated with it. The conference had as many as 37 members at one time in the late 1950s. A major reduction in the league occurred in 1974 after the NCAA created Divisions I, II, and III. At that time, 11 members left to form the Division I East Coast Conference and by 1976, the MAC became fully associated with Division III. An additional 11 members left in 1992 to form the Centennial Conference (the football programs for 8 of those schools had already left in 1981). In 1999, the current corporation formed with its three conferences - Commonwealth, Freedom and Middle Atlantic.
In May 2006, the organization offered membership to Arcadia University and Manhattanville College as part of the Freedom Conference. They replaced Juniata College, Drew University, Moravian College, Susquehanna University, and the University of Scranton, who left to join the new Landmark Conference. To offset the change in numbers, it was also decided to switch Lycoming College from the Freedom to the Commonwealth Conference.
In 2007, Alvernia University, Misericordia University, and Eastern University, all from the Pennsylvania Athletic Conference, accepted membership in the Freedom Conference and started particpation in the 2008-2009 school year.
|Lebanon Valley College||1945*|
* Conference records prior to 1946 are incomplete so years given are the earliest known that were officially recorded
|Delaware Valley College||1965|
|Cross Country (M,W)||Football||Track & Field (M,W)||Lacrosse (M)||Lacrosse (W)||Swimming (M,W)|
|Delaware Valley College||x||x||x|
|Lebanon Valley College||x||x||x||x|