Consumer Bankruptcy Law and Practice: Rule 4007. Determination of Dischargeability of a Debt
(a) PERSONS ENTITLED TO FILE COMPLAINT. A debtor or any creditor may file a complaint to obtain a determination of the dischargeability of any debt.
(b) TIME FOR COMMENCING PROCEEDING OTHER THAN UNDER § 523(c) OF THE CODE. A complaint other than under § 523(c) may be filed at any time. A case may be reopened without payment of an additional filing fee for the purpose of filing a complaint to obtain a determination under this rule.