What are the exact rules for determination of the Pac-10 representative to the Rose Bowl game?

Assuming a year when neither Pac-10 nor Big-10 are ranked #1 or #2 and the Rose Bowl is not hosting the national championship game, etc.



I know conference record is the first criteria but what are the tie-breakers that follow? An authoritative source link would be ideal.
What are the exact rules for determination of the Pac-10 representative to the Rose Bowl game?
Starting this season, all Pac 10 teams played all 9 other conference teams. So the first tiebreaker is head to head results.

usc and Cal both finished 7-2 in conference, but USC beat Cal 23-9, so USC goes to the Rose Bowl.
Reply:Pac 10 Champ always meets Big 10 Champ, unless the Rose Bowl is selected as the sight for the BCS Championship. This year is an exception because OSU is playing for the BCS Championship in the Fiesta Bowl. Michigan gets the call as #2 in the Big 10.
Reply:if two teams tie for example UCLA and USC if USC was the last team to UCLA would go because they went the most recent
Reply:the pac 10 (and big 10) champion gets an automatic bid to the rose bowl, regardless of national ranking. in the event the pac 10 champ plays in the title game (and the the title game isnt the rose bowl) then the rose bowl has the option to take the PAC 10 runner up or invite any other school theyd like. tradition dictates theyd take the runner up to play the big 10 champ.