A 24-line section of the 848-page Dodd-Frank Act is delaying U.S. implementation of international rules for how much capital banks need to hold against securitized assets. The financial-overhaul legislation, signed by President Barack Obama in July, requires regulators to remove all references to credit ratings of securities from their rules. Revised standards on how much capital banks need to hold against such assets in their trading books, approved by the Basel Committee on Banking Supervision in 2009, rely on such ratings.