Power Reactors (Division 1): Regulatory Guides 1.161 - 1.180

This page lists the number, title, publication date, and revisions for each regulatory guide in Division 1, "Power Reactors," with references to draft guides and related documents (where applicable).

See NRC Regulatory Guides for more general information.

Regulatory Guides are reviewed about every 10 years, although a guide may be reviewed more frequently if the staff believes an emerging issue affects the guide. The NRC began these reviews in 2010, and began posting the results of its reviews on this site in 2013. The review dates are hyperlinked to the review memorandum, which provide useful information about the status and any known issues with the associated regulatory guide.

Guide Number	Title	Revision Date	Issue Date	Additional Information
1.161	Evaluation of Reactor Pressure Vessels with Charpy Upper-Shelf Energy Less Than 50 Ft-Lb + HISTORY - HISTORY 03/2014 – Periodic Review of Revision 0 – Reviewed with no issues identified 09/1993 – DG-1023, Proposed Revision 0	0	06/1995	Reviewed in 2014 – No issues identified
1.162	Format and Content of Report for Thermal Annealing of Reactor Pressure Vessels + HISTORY - HISTORY 12/2014 – Periodic Review of Revision 0 – No issues identified 01/2010 – Periodic Review of Revision 0 – No issues identified 10/1994 – DG-1027, Proposed Revision 0	0	02/1996	Reviewed in 2014 – No issues identified
1.163	Performance-Based Containment Leak-Test Program + HISTORY - HISTORY 11/2022 – DG-1391, Proposed Revision 1 04/2009 – DG-1220, Proposed Revision 1 03/1996 – Errata to NEI 94-01 02/1995 – DG-1037, Proposed Revision 0	1	06/2023
1.163		0	09/1995	Periodic Review June 2019 – Revise Periodic Review of Revision 0 December 2014 - Considerations
1.164	Dedication of Commercial-Grade Items for Use in Nuclear Power Plants + HISTORY - HISTORY 11/2023 – DG-1415, Proposed Revision 1 07/2016 – DG-1292, Proposed Revision 0	1	04/2024
1.164		0	06/2017
1.165	Identification and Characterization of Seismic Sources and Determination of Safe Shutdown Earthquake Ground Motion (Withdrawn — See 75 FR 22868, 04/30/2010) + HISTORY - HISTORY 02/1995 – DG-1032, Second Proposed Revision 0 11/1992 – DG-1015, First Proposed Revision 0	W	04/2010
1.165		0	03/1997
1.166	Pre-Earthquake Planning, Shutdown, and Restart of a Nuclear Power Plant Following an Earthquake + HISTORY - HISTORY 02/2020 – Revision 1 issued 06/2019 – DG-1337 issued 06/2018 – Periodic Review of Revision 0 – Revise 04/2015 – Periodic Review of Revision 0 – Revise 02/1995 – DG-1034, Second Proposed Revision 0 11/1992 – DG-1017, First Proposed Revision 0	1	02/2020
1.166		0	03/1997
1.167	Restart of a Nuclear Power Plant Shut Down by a Seismic Event (Withdrawn – See 85 FR 10198, 02/21/2020) + HISTORY - HISTORY 06/2018 – Periodic Review of Revision 0 – Revise 10/2016 – DG-1337, Proposed Revision 1 01/2015 – Periodic Review of Revision 0 – Revise 02/1995 – DG-1035, Second Proposed Revision 0 11/1992 – DG-1018, First Proposed Revision 0	W	02/21/2020
1.167		0	03/1997
1.168	Verification, Validation, Reviews, and Audits for Digital Computer Software Used in Safety Systems of Nuclear Power Plants + HISTORY - HISTORY 08/2012 – DG-1267, Proposed Revision 2 01/2003 – DG-1123, Proposed Revision 1 08/1996 – DG-1054, Proposed Revision 0	2	07/2013	Periodic Review - December 2023 - Revise
		1	02/2004
		0	09/1997
1.169	Configuration Management Plans for Digital Computer Software Used in Safety Systems of Nuclear Power Plants + HISTORY - HISTORY 08/2012 – DG-1206, Proposed Revision 1 08/1996 – DG-1055, Proposed Revision 0	1	07/2013	Periodic Review – December 2023 - Considerations
1.169		0	09/1997
1.170	Test Documentation for Digital Computer Software Used in Safety Systems of Nuclear Power Plants + HISTORY - HISTORY 08/2012 – DG-1207, Proposed Revision 1 08/1996 – DG-1056, Proposed Revision 0	1	07/2013	Periodic Review – December 2023 - Considerations
1.170		0	09/1997
1.171	Software Unit Testing for Digital Computer Software Used in Safety Systems of Nuclear Power Plants + HISTORY - HISTORY 08/2012 – DG-1208, Proposed Revision 1 08/1996 – DG-1057, Proposed Revision 0	1	07/2013	Periodic Review – December 2023 - Considerations
1.171		0	09/1997
1.172	Software Requirement Specifications for Digital Computer Software and Complex Electronics Used in Safety Systems of Nuclear Power Plants + HISTORY - HISTORY 08/2012 – DG-1209, Proposed Revision 1 08/1996 – DG-1058, Proposed Revision 0	1	07/2013	Periodic Review – December 2023 - Considerations
1.172		0	09/1997
1.173	Developing Software Life Cycle Processes for Digital Computer Software Used in Safety Systems of Nuclear Power Plants + HISTORY - HISTORY 08/2012 – DG-1210, Proposed Revision 1 08/1996 – DG-1059, Proposed Revision 0	1	07/2013	Periodic Review – December 2023 - Considerations
1.173		0	09/1997
1.174	An Approach for Using Probabilistic Risk Assessment in Risk-Informed Decisions on Plant-Specific Changes to the Licensing Basis + HISTORY - HISTORY 03/2017 – DG-1285, Proposed Revision 3 04/2015 – Periodic Review of Revision 2 – Reviewed with issues identified for future consideration 08/2009 – DG-1226, Proposed Revision 2 06/2001 – DG-1110, Proposed Revision 1 06/1997 – DG-1061, Proposed Revision 0
		3	01/2018
		2	05/2011
		1	11/2002
		0	07/1998
1.175	Plant-Specific, Risk-Informed Decisionmaking: Inservice Testing + HISTORY - HISTORY 06/2021 – RG 1.175 Revision 1 – issued 04/2021 – DG 1286 Revision 1, Proposed Revision 1 06/2018 – Periodic Review of Revision 0 – Revise 04/2015 – Periodic Review of Revision 0 – Reviewed with issues identified for future consideration 05/2012 – DG-1286, Proposed Revision 1 03/2010 – Periodic Review of Revision 0 – No issues identified Revision 0 issued with SRP Chapter 3.9.7 06/1997 – DG-1062, Proposed Revision 0	1	06/2021
1.175		0	08/1998
1.176	An Approach for Plant-Specific, Risk-Informed Decisionmaking: Graded Quality Assurance (Withdrawn — See 73 FR 7766, 02/11/2008) + HISTORY - HISTORY DG-1064, Proposed Revision 0	W	02/2008
1.176		0	08/1998
1.177	Plant-Specific, Risk-Informed Decisionmaking: Technical Specifications + HISTORY - HISTORY 02/2020 – DG-1287 – Revised Proposed Revision 2 06/2018 – Periodic Review of Revision 1 – Revise 10/2016 – Periodic Review of Revision 1 – Reviewed with issues identified for future consideration 05/2012 – DG-1287, Proposed Revision 2 08/2009 – DG-1227, Proposed Revision 1 Revision 0 issued with SRP Chapter 16.1 06/1997 – DG-1065, Proposed Revision 0	2	01/2021
		1	05/2011
		0	08/1998
1.178	An Approach for Plant-Specific Risk-Informed Decisionmaking for Inservice Inspection of Piping + HISTORY - HISTORY 04/2021 – Revision 2 Issued 12/2020 – Revision 1 of DG-1288 for Proposed Revision 2 of RG 1.178 issued 06/2018 – Periodic Review of Revision 1 – Revise) 04/2015 – Periodic Review of Revision 1 – Reviewed with issues identified for future consideration 05/2012 – DG-1288, Proposed Revision 2 03/2010 – Periodic Review of Revision 1 – No issues identified Revision 1 issued with SRP Chapter 3.9.8 10/1997 – DG-1063, Proposed Revision 0	2	04/2021
		1	09/2003
		0	09/1998
1.179	Standard Format and Content of License Termination Plans for Nuclear Power Reactors + HISTORY - HISTORY 10/2016 – Periodic Review of Revision 1 – Reviewed with issues identified for future consideration 08/2010 – DG-1228, Proposed Revision 1 04/1998 – DG-1078, Proposed Revision 0	2	07/2019
		1	06/2011
		0	01/1999
1.180	Guidelines for Evaluating Electromagnetic and Radio-Frequency Interference in Safety-Related Instrumentation and Control Systems + HISTORY - HISTORY 04/2018 – DG-1333, Proposed Revision 2 04/2017 – Periodic Review of Revision 1 – Revise 10/2003 – Revision 1 08/2002 – DG-1119, Proposed Revision 1 02/1998 – DG-1029, Proposed Revision 0	2	12/2019
		1	10/2003
		0	01/2000

Page Last Reviewed/Updated Monday, August 19, 2024

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Power Reactors (Division 1): Regulatory Guides 1.161 - 1.180

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Power Reactors (Division 1): Regulatory Guides 1.161 - 1.180