The U.S. Nuclear Regulatory Commission (NRC) is withdrawing a direct final rule that would have revised its spent fuel storage regulations to include Amendment No. 3 to Certificate of Compliance (CoC) No. 1029, Transnuclear, Inc. Standardized Advanced NUHOMS[supreg] Horizontal Modular Storage System listing within the "List of approved spent fuel storage casks." The NRC is taking this action because it has received at least one significant adverse comment in response to a companion proposed rule that was concurrently published with the direct final rule.