Federal Reserve Governor Daniel Tarullo is pushing an agenda to regulate banks beyond the restraints in the Dodd-Frank Act, including making them fund more of their assets using long-term borrowing.

The Fed and the Federal Deposit Insurance Corp. are holding preliminary discussions on a rule that would require holding companies for the largest U.S. banks to maintain a minimum amount of long-term debt that would aid in winding them down in case they fail, FDIC spokesman Andrew Gray said.