Nuclear Regulatory Commission November 2018 – Federal Register Recent Federal Regulation Documents

Performance Review Boards for Senior Executive Service; Revision
Document Number: 2018-26018
Type: Notice
Date: 2018-11-30
Agency: Nuclear Regulatory Commission, Agencies and Commissions
On October 19, 2018, the U.S. Nuclear Regulatory Commission (NRC) announced appointments to the NRC Performance Review Board (PRB) responsible for making recommendations on performance appraisal ratings and performance awards for NRC Senior Executives and Senior Level System employees and appointments to the NRC PRB Panel responsible for making recommendations to the appointing and awarding authorities for NRC PRB members. Since then, the NRC has made revisions to the list of PRB member appointees.
Information Collection: NRC Form 531, “Request for Taxpayer Identification Number”
Document Number: 2018-25937
Type: Notice
Date: 2018-11-28
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) has recently submitted a request for revision of an existing collection of information to the Office of Management and Budget (OMB) for review. The information collection is entitled, NRC Form 531, ``Request for Taxpayer Identification Number.''
Information Collection: Operators' Licenses
Document Number: 2018-25936
Type: Notice
Date: 2018-11-28
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) invites public comment on the renewal of Office of Management and Budget (OMB) approval for an existing collection of information. The information collection is entitled, Operators' Licenses.
Information Collection: Domestic Licensing of Source Material
Document Number: 2018-25935
Type: Notice
Date: 2018-11-28
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) has recently submitted a request for renewal of an existing collection of information to the Office of Management and Budget (OMB) for review. The information collection is entitled, Domestic Licensing of Source Material.
Exelon Generation Company, LLC; Calvert Cliffs Nuclear Power Plant, Units 1 and 2; Calvert Cliffs Independent Spent Fuel Storage Installation; James A. FitzPatrick Nuclear Power Plant; Nine Mile Point Nuclear Station, Units 1 and 2
Document Number: 2018-25930
Type: Notice
Date: 2018-11-28
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is considering a request to amend licenses held by Exelon Generation Company, LLC (Exelon, the licensee) for the operation of Calvert Cliffs Nuclear Power Plant (Calvert Cliffs), Units 1 and 2; James A. FitzPatrick Nuclear Power Plant (FitzPatrick); and Nine Mile Point Nuclear Station (Nine Mile Point), Units 1 and 2 (the facilities). Amending these operating licenses would also affect the independent spent fuel storage installations (ISFSIs) at each facility. The proposed license amendments would revise the emergency response organization (ERO) positions identified in the emergency plan for each facility. The NRC is issuing an environmental assessment (EA) and finding of no significant impact (FONSI) associated with the proposed license amendments.
Entergy Operations, Inc.; Waterford Steam Electric Station, Unit 3
Document Number: 2018-25695
Type: Notice
Date: 2018-11-26
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is issuing a final plant-specific Supplement 59 to the Generic Environmental Impact Statement (GEIS) for License Renewal of Nuclear Plants, NUREG-1437, regarding the renewal of operating license NPF-38 for an additional 20 years of operation for Waterford Steam Electric Station, Unit 3 (WF3). The WF3 is located near Killona, St. Charles Parish, Lousiana.
Omaha Public Power District, Fort Calhoun Station, Unit No. 1, Partial Site Release
Document Number: 2018-25666
Type: Notice
Date: 2018-11-26
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is considering two requests from the Omaha Public Power District (OPPD) to approve the release of land areas, under the control of the NRC power reactor license for the Fort Calhoun Station, Unit No. 1 (FCS), License No. DPR-40, of portions of their owned-controlled property and an easement- controlled land area for unrestricted use. The NRC will review the requests and the result of NRC confirmatory surveys of the properties proposed for release. Approval of the request would allow OPPD to sell the released portion of the owner-controlled property, to the north and west of the plant in Nebraska, and to release the easement on the other property, to the north and east of the plant, in Iowa. The NRC is soliciting public comment on the requested actions and invites stakeholders and interested persons to participate. The NRC plans to hold a public meeting to promote full understanding of the requested actions and to facilitate public comment.
Sunshine Act Meetings
Document Number: 2018-25701
Type: Notice
Date: 2018-11-23
Agency: Nuclear Regulatory Commission, Agencies and Commissions
Establishment of Atomic Safety and Licensing Board: Interim Storage Partners LLC
Document Number: 2018-25453
Type: Notice
Date: 2018-11-23
Agency: Nuclear Regulatory Commission, Agencies and Commissions
Miscellaneous Corrections-Organizational Changes
Document Number: 2018-25378
Type: Rule
Date: 2018-11-21
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is amending its regulations to make miscellaneous corrections. These changes include removing an office from a list of office recipients, removing an office reference, correcting an office designation and a phone number, removing and correcting division titles, and removing a followup reporting instruction. This document is necessary to inform the public of these non-substantive amendments to the NRC's regulations.
Memorandum of Understanding Between the U.S. Nuclear Regulatory Commission and the Wyoming Department of Environmental Quality
Document Number: 2018-25367
Type: Notice
Date: 2018-11-21
Agency: Nuclear Regulatory Commission, Agencies and Commissions
This notice is announcing that, effective on September 30, 2018, the U.S. Nuclear Regulatory Commission (NRC or Commission) and the State of Wyoming, Department of Environmental Quality (WYDEQ), entered into a Memorandum of Understanding (MOU) for the purpose of establishing a regulatory process for the completion of decommissioning of five uranium mill tailing sites and the termination of the associated uranium mill licenses located within the State of Wyoming.
Sunshine Act Meetings
Document Number: 2018-25209
Type: Notice
Date: 2018-11-16
Agency: Nuclear Regulatory Commission, Agencies and Commissions
Proposed Revisions to SRP 2.5.3, Surface Deformation
Document Number: 2018-25064
Type: Notice
Date: 2018-11-16
Agency: Nuclear Regulatory Commission, Agencies and Commissions
On September 28, 2018, the U.S. Nuclear Regulatory Commission (NRC) published a request for public comment on draft NUREG-0800, ``Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants: LWR Edition,'' Standard Review Plans (SRP) 2.5.3, ``Surface Deformation.'' The public comment period was originally scheduled to close on October 29, 2018. The NRC has decided to reopen the public comment period for this document for 30 days to allow more time for members of the public to develop and submit comments.
Proposed Revisions to SRPs 2.3.3, Onsite Meteorological Measurements Program; 2.4.6, Tsunami Hazards; and 2.4.9, Channel Migration or Diversion
Document Number: 2018-25052
Type: Notice
Date: 2018-11-16
Agency: Nuclear Regulatory Commission, Agencies and Commissions
On September 28, 2018, the U.S. Nuclear Regulatory Commission (NRC) published a request for public comment on draft NUREG-0800, ``Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants: LWR Edition,'' Standard Review Plans (SPRs) 2.3.3, ``Onsite Meteorological Measurements Program''; 2.4.6, ``Tsunami Hazards''; and 2.4.9, ``Channel Migration or Diversion.'' The public comment period was originally scheduled to close on October 29, 2018. The NRC has decided to reopen the public comment period on these documents for 30 days to allow more time for members of the public to develop and submit comments.
Unified Agenda of Federal Regulatory and Deregulatory Actions
Document Number: 2018-23931
Type: Unknown
Date: 2018-11-16
Agency: Nuclear Regulatory Commission, Agencies and Commissions
We are publishing our semiannual regulatory agenda (the Agenda) in accordance with Public Law 96-354, ``The Regulatory Flexibility Act,'' and Executive Order 12866, ``Regulatory Planning and Review.'' The Agenda is a compilation of all rulemaking activities on which we have recently completed action or have proposed or are considering action. We have completed 5 rulemaking activities since publication of our last Agenda on June 11, 2018. This issuance of our Agenda contains 29 active and 17 long-term rulemaking activities: 4 are Economically Significant; 10 represent Other Significant agency priorities; 29 are Substantive, Nonsignificant rulemaking activities; and 3 are Administrative rulemaking activities. In addition, 2 rulemaking activities impact small entities. This issuance also contains our annual regulatory plan, which contains information on some of our most important regulatory actions that we are considering issuing in proposed or final form during Fiscal Year 2018. Our regulatory plan was submitted to OMB in June 2018; updates have been reflected in the Agenda abstract for each rulemaking. We are requesting comment on the rulemaking activities as identified in this Agenda.
Sunshine Act Meetings
Document Number: 2018-24948
Type: Notice
Date: 2018-11-14
Agency: Nuclear Regulatory Commission, Agencies and Commissions
Watts Bar Nuclear Plant, Unit 2
Document Number: 2018-24814
Type: Notice
Date: 2018-11-14
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is considering issuance of an amendment to Facility Operating License (FOL) No. NPF-96 for the Watts Bar Nuclear Plant (WBN), Unit 2. The proposed amendment would revise the completion date for License Condition (LC) 2.C.(5) for WBN Unit 2, regarding the completion of action to resolve the issues identified in NRC Bulletin 2012-01, ``Design Vulnerability in Electric Power System,'' from December 31, 2018, to December 31, 2019, to align with the remainder of the Tennessee Valley Authority fleet and with the nuclear industry.
Entergy Operations, Inc., River Bend Station, Unit 1
Document Number: 2018-24813
Type: Notice
Date: 2018-11-14
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is issuing a final plant-specific Supplement 58 to the Generic Environmental Impact Statement (GEIS) for License Renewal of Nuclear Plants, NUREG-1437, regarding the renewal of operating license NPF-47 for an additional 20 years of operation for River Bend Station, Unit 1 (RBS). The RBS is located in West Feliciana Parish, Louisiana.
Information Collection: Form 790, Classification Record
Document Number: 2018-24772
Type: Notice
Date: 2018-11-14
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) invites public comment on the renewal of Office of Management and Budget (OMB) approval for an existing collection of information. The information collection is entitled, ``NRC Form 790, Classification Record.''
Information Collection: NRC Form 171, “Duplication Request”
Document Number: 2018-24771
Type: Notice
Date: 2018-11-14
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) has recently submitted a request for renewal of an existing collection of information to the Office of Management and Budget (OMB) for review. The information collection is entitled, NRC Form 171, ``Duplication Request.''
Meeting of the Advisory Committee on Reactor Safeguards (ACRS); Subcommittee on Plant License Renewal
Document Number: 2018-24751
Type: Notice
Date: 2018-11-14
Agency: Nuclear Regulatory Commission, Agencies and Commissions
Meeting of the Advisory Committee on Reactor Safeguards (ACRS); Subcommittee on Thermal-Hydraulic Phenomena
Document Number: 2018-24750
Type: Notice
Date: 2018-11-14
Agency: Nuclear Regulatory Commission, Agencies and Commissions
ZionSolutions,
Document Number: 2018-24726
Type: Notice
Date: 2018-11-14
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is issuing an exemption in response to a November 2, 2017, request submitted by ZionSolutions, for its general license to operate an independent spent fuel storage installation (ISFSI) at the Zion Nuclear Power Station (ZNPS). The exemption would allow ZionSolutions to deviate from the requirements in Certificate of Compliance (CoC) No. 1031, Amendment No. 6, Appendix A, Technical Specifications and Design Features for the Modular Advanced Generation Nuclear All-purpose STORage (MAGNASTOR[supreg]) System, Section 5.7, ``Training Program.''
Exemption; Issuance: Northwest Medical Isotopes, LLC; Medical Radioisotope Production Facility
Document Number: 2018-24312
Type: Notice
Date: 2018-11-13
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is issuing an exemption to Northwest Medical Isotopes, LLC (NWMI) from the requirement that an application for an NRC license to possess and use special nuclear material for processing and fuel fabrication, scrap recovery or conversion of uranium hexafluoride, or for the conduct of any other activity which the NRC has determined will significantly affect the quality of the environment (and the associated environmental report), be submitted at least 9 months prior to commencement of construction of the plant or facility in which the activity will be conducted.
American Society of Mechanical Engineers 2015-2017 Code Editions Incorporation by Reference
Document Number: 2018-24076
Type: Proposed Rule
Date: 2018-11-09
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its regulations to incorporate by reference the 2015 and 2017 Editions of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (BPV Code) and the 2015 and 2017 Editions of the ASME Operation and Maintenance of Nuclear Power Plants, Division 1: OM: Section IST (OM Code), respectively, for nuclear power plants. The NRC is also proposing to incorporate by reference two revised ASME code cases. This action is in accordance with the NRC's policy to periodically update the regulations to incorporate by reference new editions of the ASME Codes and is intended to maintain the safety of nuclear power plants and to make NRC activities more effective and efficient.
U.S. Army Ranges With Davy Crockett Depleted Uranium
Document Number: 2018-24277
Type: Notice
Date: 2018-11-07
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) issued License Amendment No. 3 to the Army. License Amendment No. 3 makes multiple changes to Source Materials License No. SUC-1596: (1) Incorporation by reference of three revised final site-specific Environmental Radiation Monitoring Plans (ERMPs); (2) incorporation by reference of the December 15, 2017, letter, clarifying sampling procedures; (3) incorporation by reference of the letter naming the license Radiation Safety Officer (RSO); (4) incorporation by reference of the letter naming the new Army licensing official; and (5) editorial changes to correct grammar, and formatting. License Amendment No. 3 was effective on the date of issuance. The Army must implement the revised final site-specific ERMPs within 3 months of the date of issuance.
List of Approved Spent Fuel Storage Casks: TN Americas LLC, Standardized NUHOMS® System, Certificate of Compliance No. 1004, Renewed Amendment No. 15
Document Number: 2018-24256
Type: Proposed Rule
Date: 2018-11-07
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend its spent fuel storage regulations by revising the TN Americas LLC Standardized NUHOMS[supreg] Horizontal Modular Storage System (NUHOMS[supreg] System) listing within the ``List of approved spent fuel storage casks'' to include Renewed Amendment No. 15 to Certificate of Compliance No. 1004. Because this amendment is subsequent to the renewal of the TN Americas LLC Standardized NUHOMS[supreg] Certificate of Compliance 1004 system and, therefore, subject to the Aging Management Program requirements of the renewed certificate, it is referred to as ``Renewed Amendment No. 15.'' Renewed Amendment No. 15 would revise the Certificate of Compliance's technical specifications to: Unify and standardize fuel qualification tables; revise existing and add new heat load zoning configurations; increase the allowable maximum assembly average burnup; allow loading of damaged fuel assemblies under certain conditions; expand the definition of the poison rod assemblies to include rod cluster control assembly materials; allow other zirconium alloy cladding materials; add model OS197 as an authorized transfer cask; add the description for the solar shield in the updated final safety analysis report; and add flexibility to general licensees in verifying compliance regarding the storage pad location and the soil-structure interaction. Additionally, the rulemaking would make clarifications to rule text related to Certificate of Compliance No. 1004 by removing redundant language.
List of Approved Spent Fuel Storage Casks: TN Americas LLC, Standardized NUHOMS® System, Certificate of Compliance No. 1004, Renewed Amendment No. 15
Document Number: 2018-24255
Type: Rule
Date: 2018-11-07
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is amending its spent fuel storage regulations by revising the TN Americas LLC Standardized NUHOMS[supreg] Horizontal Modular Storage System (NUHOMS[supreg] System) listing within the ``List of approved spent fuel storage casks'' to include Renewed Amendment No. 15 to Certificate of Compliance No. 1004. Because this amendment is subsequent to the renewal of the TN Americas LLC Standardized NUHOMS[supreg] Certificate of Compliance 1004 system and, therefore, subject to the Aging Management Program requirements of the renewed certificate, it is referred to as ``Renewed Amendment No. 15.'' Renewed Amendment No. 15 revises the Certificate of Compliance's technical specifications to: Unify and standardize fuel qualification tables; revise existing and add new heat load zoning configurations; increase the allowable maximum assembly average burnup; allow loading of damaged fuel assemblies under certain conditions; expand the definition of the poison rod assemblies to include rod cluster control assembly materials; allow other zirconium alloy cladding materials; add model OS197 as an authorized transfer cask; add the description for the solar shield in the updated final safety analysis report; and add flexibility to general licensees in verifying compliance regarding the storage pad location and the soil-structure interaction. Additionally, the rulemaking makes clarifications to rule text related to Certificate of Compliance No. 1004 by removing redundant language.
Sunshine Act Meetings
Document Number: 2018-24324
Type: Notice
Date: 2018-11-06
Agency: Nuclear Regulatory Commission, Agencies and Commissions
Establishment of Atomic Safety and Licensing Board: Holtec International
Document Number: 2018-24193
Type: Notice
Date: 2018-11-06
Agency: Nuclear Regulatory Commission, Agencies and Commissions
Biweekly Notice; Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations
Document Number: 2018-23782
Type: Notice
Date: 2018-11-06
Agency: Nuclear Regulatory Commission, Agencies and Commissions
Pursuant to Section 189a.(2) of the Atomic Energy Act of 1954, as amended (the Act), the U.S. Nuclear Regulatory Commission (NRC) is publishing this regular biweekly notice. The Act requires the Commission to publish notice of any amendments issued, or proposed to be issued, and grants the Commission the authority to issue and make immediately effective any amendment to an operating license or combined license, as applicable, upon a determination by the Commission that such amendment involves no significant hazards consideration, notwithstanding the pendency before the Commission of a request for a hearing from any person. This biweekly notice includes all notices of amendments issued, or proposed to be issued, from October 6, 2018, to October 22, 2018. The last biweekly notice was published on October 23, 2018.
Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Considerations and Containing Sensitive Unclassified Non-Safeguards Information and Order Imposing Procedures for Access to Sensitive Unclassified Non-Safeguards Information
Document Number: 2018-22576
Type: Notice
Date: 2018-11-06
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) received and is considering approval of two amendment requests. The amendment requests are for both Peach Bottom Atomic Power Station, Unit Nos. 2 and 3. For each amendment request, the NRC proposes to determine that they involve no significant hazards consideration. Because each amendment request contains sensitive unclassified nonsafeguards information (SUNSI) an order imposes procedures to obtain access to SUNSI for contention preparation.
Report on Changes to Low-Level Waste Burial Charges
Document Number: 2018-24079
Type: Notice
Date: 2018-11-05
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is issuing for public comment Revision 17 of draft NUREG-1307, ``Report on Waste Burial Charges: Changes in Decommissioning Waste Disposal Costs at Low- Level Waste Burial Facilities.'' This report, which is revised periodically, explains the formula acceptable to the NRC for determining the minimum decommissioning fund requirements for nuclear power reactors. Specifically, this report provides escalation factors, and updates to these values, for the labor, energy, and waste components of the minimum formula.
Categorization of the Licensee Fee Category for Full-Cost Recovery
Document Number: 2018-24002
Type: Proposed Rule
Date: 2018-11-02
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) has received a petition for rulemaking (PRM) from Mr. Christopher S. Pugsley, Esq. (the petitioner), on behalf of Water Remediation Technology (WRT), LLC, dated July 3, 2018, requesting that the NRC amend its regulations regarding full-cost recovery of licensee fees. The petition was docketed by the NRC on August 2, 2018, and has been assigned Docket No. PRM-170-7. The NRC is examining the issues raised in PRM-170-7 to determine whether they should be considered in rulemaking. The NRC is not instituting a public comment period for this PRM as the staff anticipates considering the issues raised in the petition in the upcoming fiscal year 2019 proposed fee rule, and the public will have an opportunity to comment at that time.
Meeting of the Advisory Committee on Reactor Safeguards (ACRS) Subcommittee on Planning and Procedures
Document Number: 2018-23986
Type: Notice
Date: 2018-11-02
Agency: Nuclear Regulatory Commission, Agencies and Commissions
Southern Nuclear Operating Company, Inc.; Vogtle Electric Generating Plant, Units 3 and 4, Equipment Survivability Assessment
Document Number: 2018-23869
Type: Notice
Date: 2018-11-01
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is granting an exemption to allow a departure from the certification information of Tier 1 of the generic design control document (DCD) and is issuing License Amendment Nos. 139 and 138 to Combined Licenses (COLs), NPF-91 and NPF-92. The COLs were issued to Southern Nuclear Operating Company, Inc., Georgia Power Company, Oglethorpe Power Corporation, MEAG Power SPVM, LLC, MEAG Power SPVJ, LLC, MEAG Power SPVP, LLC, and the City of Dalton, Georgia (collectively SNC); for construction and operation of the Vogtle Electric Generating Plant (VEGP) Units 3 and 4, located in Burke County, Georgia. The granting of the exemption allows the changes to Tier 1 information asked for the amendment. Because the acceptability of the exemption was determined in part by the acceptability of the amendment, the exemption and amendment are being issued concurrently.
Virginia Electric and Power Company; Dominion Energy Virginia; Surry Power Station, Units 1 and 2
Document Number: 2018-23841
Type: Notice
Date: 2018-11-01
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) has received an application for the subsequent renewal of Renewed Facility Operating License Nos. DPR-32 and DPR-37, which authorize Virginia Electric and Power Company (Dominion Energy Virginia or the applicant) to operate Surry Power Station (SPS), Units 1 and 2. The renewed licenses would authorize the applicant to operate SPS for an additional 20 years beyond the period specified in each of the current renewed licenses. The current renewed operating licenses for SPS expire as follows: Unit 1 on May 25, 2032, and Unit 2 on January 29, 2033.
Southern Nuclear Operating Company, Inc., Vogtle Electric Generating Plant, Units 3 and 4; Exemptions
Document Number: 2018-23840
Type: Notice
Date: 2018-11-01
Agency: Nuclear Regulatory Commission, Agencies and Commissions
The U.S. Nuclear Regulatory Commission (NRC) is issuing an exemption in response to a June 27, 2018, request from Southern Nuclear Operating Company, Inc., as applicable to Vogtle Electric Generating Plant (VEGP) Units 3 and 4. Specifically, SNC requested an exemption that would modify the requirement for the level 1 and level 2 PRA for VEGP Units 3 and 4 to cover those initiating events and modes for which Regulatory Guide 1.200, Revision 2, endorses standards.