Power Reactors (Division 1): Regulatory Guides 1.61 - 1.80

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 Number	Publish Date	Additional Information
1.61	Damping Values for Seismic Design of Nuclear Power Plants + HISTORY - HISTORY 05/2023 – DG-1364, Proposed Revision 2 10/2006 – DG-1157, Proposed Revision 1	2	12/2023
		1	03/2007	Periodic Review June 2022 – Revise Periodic Review June 2018 – Revise Periodic Review April 2015 – Revise
		0	10/1973
1.62	Manual Initiation of Protective Actions + HISTORY - HISTORY 10/2017 – Periodic Review of Revision 1 – Issues identified for future consideration 01/2016 – Periodic Review on Revision 1 – Revise 12/2008 – DG-1190, Proposed Revision 1	1	06/2010	Reviewed in 2017 – Issues identified for future consideration
1.62		0	10/1973
1.63	Electric Penetration Assemblies in Containment Structures for Nuclear Power Plants + HISTORY - HISTORY 12/2025 ‐ Periodic Review of Revision 3 ‐ Revise 12/2021 ‐ Periodic Review of Revision 3 ‐ No issues identified 04/2017 – Periodic Review of Revision 3 – Issues identified for future consideration 11/2011 – Periodic Review of Revision 3 – No issues identified 06/1986 – Draft EE 405-4, Proposed Revision 3	3	02/1987	Reviewed in 2025 - Revise
		2	07/1978
		1	05/1977
		0	10/1973
1.64	Quality Assurance Requirements for the Design of Nuclear Power plants (Withdrawn -- See 56 FR 36175, 07/31/1991)	W	07/1991
		2	06/1976
		1	02/1975
1.65	Materials and Inspections for Reactor Vessel Closure Studs + HISTORY - HISTORY 07/2015 – Periodic Review of Revision 1 – No issues identified 04/2009 – DG-1211, Proposed Revision 1	1	04/2010	Reviewed in 2015 – No issues identified
1.65		0	10/1973
1.66	Nondestructive Examination of Tubular Products (Withdrawn -- See 42 FR 54478, 10/6/1977)	W	10/1977
1.66		0	10/1973
1.67	Installation of Overpressure Protection Devices (Withdrawn -- See 48 FR 19101, 04/27/1983)	W	04/1983
1.67		0	10/1973
1.68	Initial Test Programs for Water-Cooled Nuclear Power Plants + HISTORY - HISTORY 11/2012 – DG-1259, Proposed Revision 4 11/2006 – DG-1166, Proposed Revision 3	4	06/2013	Periodic Review – April 2023 - Revise
		3	03/2007
		2	08/1978
		1	01/1977
		0	11/1973
1.68.1	Initial Test Program of Condensate and Feedwater Systems for Light-Water Reactors + HISTORY - HISTORY 03/2012 – DG-1265, proposed revision 2	2	09/2012	Periodic Review October 2022 Withdraw
		1	01/1977
		0	12/1975
1.68.2	Initial Startup Test Program To Demonstrate Remote Shutdown Capability for Water-Cooled Nuclear Power Plants + HISTORY - HISTORY 03/2026 – Periodic Review – Reviewed with issues identified for future consideration 04/2015 – Periodic Review – Reviewed with issues identified for future consideration 08/2009 – DG-1236, Proposed Revision 2	2	04/2010	Periodic Review in 2026 – Reviewed with issues identified for future consideration Periodic Review in 2015 – Reviewed with issues identified for future consideration
		1	07/1978
		0	01/1977
1.68.3	Preoperational Testing of Instrument and Control Air Systems + HISTORY - HISTORY 03/2012 – DG-1268, proposed revision 1 to RG 1.68.3 10/1980 – Draft RS 709-4, a proposed revision to RG 1.80	1	09/2012	Periodic Review October 2022 Revise
1.68.3		0	04/1982
1.69	Concrete Radiation Shields and Generic Shield Testing for Nuclear Power Plants + HISTORY - HISTORY 07/2014 – Periodic Review of Revision 1 – No issues identified 11/2008 – DG-1187, Proposed Revision 1 Prior to the issuance of Revision 1, RG 1.69 was entitled, "Concrete Radiation Shields for Nuclear Power Plants"	1	05/2009	Periodic Review July 2025 – Revise Reviewed in 2014 – No issues identified
1.69		0	12/1973
1.70	Standard Format and Content of Safety Analysis Reports for Nuclear Power Plants (LWR Edition) + HISTORY - HISTORY 11/2025 - Periodic Review of Revision 3 - Reviewed with issues identified for future consideration 09/2014 – Periodic Review of Revision 3 – Issues identified for future consideration 04/2009 – Periodic Review of Revision 3 – No issue identified 07/1974 – 1.70.6, Additional Information 09/1974 – 1.70.8, Additional Information	3	11/1978	Periodic Review in 2025 - Reviewed with issues identified for future consideration Periodic Review in 2014 - Reviewed with issues identified for future consideration
		2	09/1975
		1	10/1972
		0	02/1972
1.71	Welder Qualification for Areas of Limited Accessibility + HISTORY - HISTORY 10/2016 – DG-1167, Proposed Revision 1	1	03/2007	Periodic Review May 2022 – No issues identified
1.71		0	12/1973	Periodic Review March 2007 No Action
1.72	Spray Pond Piping Made from Fiberglass-Reinforced Thermosetting Resin	2	11/1978	Periodic Review – May 2024 - Considerations Reviewed in 2014 – Issues identified for future consideration Periodic Review – May 2009 -No Action
		1	01/1978
		0	12/1973
1.73	Qualification Tests for Safety-Related Actuators in Nuclear Power Plants + HISTORY - HISTORY 05/2023 – DG-1386, Proposed Revision 2 04/2013 – DG-1235, Proposed Revision 1	2	01/2024
		1	10/2013
		0	01/1974
1.74	Quality Assurance Terms and Definitions (Withdrawn -- See 54 FR 38919, 09/21/1989)	W	09/1989
1.74		0	02/1974
1.75	Criteria for Independence of Electrical Safety Systems + HISTORY - HISTORY 02/2016 – Periodic Review of Revision 3 – Issues identified for future consideration 12/2003 – DG-1129, Proposed Revision 3	3	02/2005	Reviewed in 2016 – Issues identified for future consideration
		2	09/1978
		1	01/1975
		0	02/1974
1.76	Design-Basis Tornado and Tornado Missiles for Nuclear Power Plants + HISTORY - HISTORY 08/2016 – Periodic Review of Revision 1 – Issues identified for future consideration 08/2011 – Periodic Review of Revision 1 – No issues identified 01/2006 – DG-1143, Proposed Revision 1 Prior to the issuance of DG-1143, RG 1.76 was entitled "Design-Basis Tornado for Nuclear Power Plants"	1	03/2007	Reviewed in 2016 – Issues identified for future consideration
1.76		0	04/1974
1.77	Assumptions Used for Evaluating a Control Rod Ejection Accident for Pressurized Water Reactors (Withdrawn -- See 85 FR 37118, 06/19/20) + HISTORY - HISTORY 04/2015 – Periodic Review of Revision 1 – Revise	W	06/2020
1.78	Evaluating the Habitability of a Nuclear Power Plant Control Room During a Postulated Hazardous Chemical Release + HISTORY - HISTORY 07/20/21 – DG-1387, Proposed Revision 2 07/2020 – Periodic Review of Revision 1 – Revise 03/2017 – Periodic Review of Revision 1 – Revise 01/2012 – Periodic Review of Revision 1 – No issues identified 02/2001 – DG-1087, Proposed Revision 1 Revision 1 incorporates guidance from withdrawn Regulatory Guide 1.95	2	12/2021
		1	12/2001
		0	06/1974
1.79	Preoperational Testing of Emergency Core Cooling Systems for Pressurized Water Reactors + HISTORY - HISTORY DG-1253, Proposed Revision 2	2	10/2013	Periodic Review – May 2023 - Revise
		1	09/1975
		0	06/1974
1.79.1	Initial Test Program of Emergency Core Cooling Systems for New Boiling-Water Reactors + HISTORY - HISTORY 06/2012 – DG-1277, Proposed Revision 0	0	10/2013	Periodic Review – May 2023 - Revise
1.80	Preoperational Testing of Instrument Air Systems (Withdrawn -- See 47 FR 19258, 05/4/1982) + HISTORY - HISTORY Reissued as Regulatory Guide 1.68.3, a renumbered revision of this guide, with an expanded scope that addresses control air systems (see details above)	W	05/1982
1.80		0	06/1974

Page Last Reviewed/Updated Thursday, May 21, 2026

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Power Reactors (Division 1): Regulatory Guides 1.61 - 1.80