The FCS stands for the NCAA Division I Football Championship Subdivision. It began in 1978 as NCAA Division I-AA and in December 2006, became known as FCS. The FCS is the highest level of NCAA collegiate football to determine its national champion through a comprehensive playoff system. 

There are 13 conferences representing 129 teams. In 1978, there was a 4-team playoff. As of 2013, the playoff expanded to a 24-team format with 11 automatic qualifiers and 13 at-large.  

Since 1978, 23 different teams have won the FCS championship. North Dakota State has won the most titles (9) to-date. 

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Variations of the above content derived from NCAA.com