11 U.S.C. § 1109: Right to be heard

(a) The Securities and Exchange Commission may raise and may appear and be heard on any issue in a case under this chapter, but the Securities and Exchange Commission may not appeal from any judgment, order, or decree entered in the case. (b) A party in interest, including the debtor, the trustee, a creditors’ committee, an equity security holders’ committee, a creditor, an equity security holder, or any indenture trustee, may raise and may appear and be heard on any issue in a case under this chapter.