Odaily News U.S. Treasury Secretary Benson said regulators may cancel a long-standing rule that restricts banks' U.S. Treasury bond trading this summer. Benson said that action on the supplementary leverage ratio (SLR) rule is very close. He pointed out that the three major bank regulators, the Federal Reserve, the Office of the Comptroller of the Currency (OCC), and the Federal Deposit Insurance Corporation (FDIC), are working on this issue, "I think we may see results in the summer." The existing SLR rule requires banks to retain corresponding capital when trading U.S. bonds. Benson said that canceling the rule could cause U.S. Treasury yields to fall by dozens of basis points.