in force for a number of years. Under this rule, any team that had appeared in the Rose Bowl game the previous season could not go, even if they were the conference champion. The notable exception was Minnesota playing in the 1961 and 1962 games during the period when the conference agreements were in a state of flux. Second-ranked Ohio State did not participate because its faculty council voted it down, allowing Minnesota to return. The PCC's rule went into effect following California's third straight defeat in 1951 and ended with conference's disbandment in the summer of 1959; it affected the 1955 and 1958 games. The Big Ten abolished their rule in 1972; it had recently affected the 1966 game. Southern California played in four consecutive Rose Bowl games from 1967 to 1970; Ohio State played in four straight from 1973 to 1976. Both conferences also had "exclusive agreements" with the Rose Bowl game, in the sense that member schools were not allowed to play in any other bowl game. Both conferences abolished this rule before the 1975 NCAA Division I football season. As a result, Michigan and USC were allowed to play in the 1976 Orange Bowl and the 1975 Liberty Bowl, respectively. Bowl Championship Series As of the 1998 season, with the creation of the Bowl Championship Series (BCS), team selection for the Rose Bowl was tied to the other three BCS bowls, although in any given year the Rose Bowl still attempted, if possible, to maintain the traditional Pac-10 (Pac-12 after the addition of Utah and Colorado in 2011) versus Big Ten format (though if the champion from either or both conference was ranked BCS #1 or #2, they were allowed into the national championship game and were replaced by another team, typically from the same conference as the team being replaced). Twice in this era, the Rose Bowl had served as the BCS championship game. The 2002 game served as the BCS championship game between the BCS No. 1–ranked Miami, then a member of the Big East Conference, and the BCS No. 2–ranked Nebraska, then a member of the Big 12 Conference. The Nebraska selection as the BCS No. 2 team was controversial because Oregon was ranked No. 2 in both the AP and Coaches Polls, while Nebraska was ranked No. 4 in both polls and did not play in its conference championship game (No. 3