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Home NRC Library Document Collections Regulatory Guides (by Division) Division 1 - Power Reactors

Power Reactors (Division 1): Regulatory Guides 1.21 - 1.40

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 also Draft Regulatory Guides for Public Comment.

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
1.21 Measuring, Evaluating, and Reporting Radioactive Material in Liquid and Gaseous Effluents and Solid Waste 3 09/2021  
2 06/2009  
1 06/1974  
0 12/1971  
1.22 Periodic Testing of Protection System Actuation Functions (Safety Guide 22) 0 02/1972 Periodic Review – March 2022 No Action

Reviewed in 2012 – No issues identified
1.23 Meteorological Monitoring Programs for Nuclear Power Plants 1 03/2007 Periodic Review – March 2023 Considerations

Reviewed in 2013 – No issues identified
0 02/1972  
1.24 Assumptions Used for Evaluating the Potential Radiological Consequences of a Pressurized Water Reactor Radioactive Gas Storage Tank Failure (Safety Guide 24) 0 03/1972 Reviewed in 2016 – Issues identified for future consideration
1.25 Assumptions Used for Evaluating the Potential Radiological Consequences of a Fuel Handling Accident in the Fuel Handling and Storage Facility for Boiling and Pressurized Water Reactors (Safety Guide 25)
(Withdrawn – See 81 FR 89510, 12/12/2016)		 W 12/2016  
0 03/1972  
1.26 Quality Group Classifications and Standards for Water-, Steam-, and Radioactive-Waste-Containing Components of Nuclear Power Plants 6 12/2021  
5 02/2017  
4 03/2007  
3 02/1976  
2 06/1975  
1 09/1974  
0 03/1972  
1.27 Ultimate Heat Sink for Nuclear Power Plants 3 11/2015  
2 01/1976  
1 03/1974  
0 03/1972  
1.28 Quality Assurance Program Criteria (Design and Construction) 6 09/2023  
5 10/2017  
4 06/2010  
3 08/1985  
2 02/1979  
1 03/1978  
0 06/1972  
1.29 Seismic Design Classification for Nuclear Power Plants 6 07/2021  
5 07/2016  
4 03/2007  
3 09/1978  
2 02/1976  
1 08/1973  
0 06/1972  
1.30 Quality Assurance Requirements for the Installation, Inspection, and Testing of Instrumentation and Electric Equipment (Safety Guide 30) 1 04/2024  
0 08/1972 Periodic Review September 2022 – Revise

Periodic Review December   2018 – Revise
1.31 Control of Ferrite Content in Stainless Steel Weld Metal 4 10/2013 Reviewed in 2016 – No issues identified
3 04/1978  
2 05/1977  
1 06/1973  
0 08/1972  
1.32 Criteria for Power Systems for Nuclear Power Plants DG 08/2024 DG-1420
3 03/2004 Reviewed in 2017 – No issues identified
2 02/1977  
1 03/1976  
0 08/1972  
1.33 Quality Assurance Program Requirements (Operation) 3 06/2013 Periodic Review – July 2023
Considerations
2 02/1978  
1 01/1977  
0 11/1972  
1.34 Control of Electroslag Weld Properties 1 03/2011 Reviewed in 2016 – No issues identified
0 12/1972  
1.35 Inservice Inspection of Ungrouted Tendons in Prestressed Concrete Containments
(Withdrawn – See 80 FR 52067, 08/27/2015) 		W 08/2015  
3 07/1990  
2 01/1976  
1 06/1974  
0 02/1973  
1.35.1 Determining Prestressing Forces for Inspection of Prestressed Concrete Containments 0 07/1990 Reviewed in 2015 – Issues identified for future consideration
1.36 Nonmetallic Thermal Insulation for Austenitic Stainless Steel 1 05/2015  
0 02/1973  
1.37 Quality Assurance Requirements for Cleaning of Fluid Systems and Associated Components of Water-Cooled Nuclear Power Plants
(Withdrawn – See 79 FR 38963, 07/09/2014) 		W 07/2014  
1 03/2007  
0 03/1973  
1.38 Quality Assurance Requirements for Packaging, Shipping, Receiving, Storage, and Handling of Items for Water-Cooled Nuclear Power Plants
(Withdrawn – See 75 FR 54921, 09/09/2010)		 W 09/2010  
2 05/1977  
1 10/1976  
0 03/1973  
1.39 Housekeeping Requirements for Water-Cooled Nuclear Power Plants
(Withdrawn – See 75 FR 70044, 11/16/2010)		 W 11/2010  
2 09/1977  
1 10/1976  
0 03/1973  
1.40 Qualification of Continuous Duty Safety-Related Motors for Nuclear Power Plants 1

02/2010

 Reviewed in 2016 – No issues  identified
0 03/1973  
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Page Last Reviewed/Updated Tuesday, August 27, 2024