3150-AI01 200904 Unified Agenda of Federal Regulatory and Deregulatory Actions 3150 Nuclear Regulatory Commission NRC Amend Fracture Toughness Requirements Against Pressurized Thermal Shock Event [NRC-2007-0008] Substantive, Nonsignificant Previously Published in The Unified Agenda Final Rule Stage No No 10 CFR 50 42 USC 2201 42 USC 5841 No NPRM 10/03/2007 72 FR 56275 NPRM Comment Period End 11/02/2007 NPRM Comment Period Reopened 11/21/2007 72 FR 65470 NPRM Comment Period End 12/17/2007 Supplemental NPRM 08/11/2008 73 FR 46557 Supplemental NPRM Comment Period End 09/10/2008 Final Rule 07/00/2009 No No None No No Veronica Rodriguez M. 3150 Nuclear Regulatory Commission NRC 301 415-3703 veronica.rodriguez@nrc.gov Office of Nuclear Reactor Regulation, Washington DC 20555-0001