The rules! The rules! Here they are. AMPAS release:
Rules Approved for
81st Academy Awards¬Æ
Beverly Hills, CA ‚Äì‚Äì The governors of the Academy of Motion Picture Arts and Sciences approved the rules for the 81st Academy Awards at their Tuesday evening (6/17) meeting. The only significant changes were in the Music ‚Äì Original Song category. Other modifications of the rules include normal date changes and minor ‚Äúhousekeeping‚Äù changes.
Three items of note were altered in the Original Song rules. First, while there continues to be no limit on the number of songs from a given film that can be submitted for consideration, no more than two songs from any one film may be nominated for an Academy Award.