The playoffs began with four teams in 1973, expanded to eight teams to 1975, 16 teams in 1985, 28 teams in 1999, 32 teams in 2005,[1] and 40 teams in 2024.[2]
Currently NCAA Division III teams that sponsored football at D-III level and had made at least one appearance in playoffs but dropped their football programs.
^According to conferences in football, not necessarily a team's primary conference.
^After the 2018–19 school year, Long Island University merged the athletic programs of its two campuses—Division I LIU Brooklyn and Division II LIU Post—into a single Division I program under the LIU name. All varsity sports previously sponsored by either campus continued to be sponsored by the new LIU program, which inherited LIU Brooklyn's Division I and Northeast Conference memberships. The new nickname of Sharks was announced on May 15, 2019.[4][5]