Document: NRC Regulatory Guide
Document ID: b2dd9fac-b26b-4819-a1b3-6e1765b4cfa3
Document Type: regulatory_guide
Title: Constraint on Releases of Airborne Radioactive Materials to the Environment for Licensees other than Power Reactors + HISTORY - HISTORY 04/2017 – Periodic Review of Revision 1 – Issues identified for future consideration 04/2010 – DG-4018 , Proposed Revision 1 12/1995 – Draft DG-8016
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML1720/ML17208A922.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.20
CFR Part: 
CFR Title: 

Content:
NRC before their implementation and how licensees can evaluate potential changes to determine whether NRC approval is required. It also identifies an acceptable level of information to be provided by licensees when documenting and reporting changes made without prior NRC approval pursuant to 10 CFR 70.72, “Facility changes and change process.” No technical or regulatory issues were identified in the document as a result of the current review. The guidance remains applicable as written. 2. What is the impact on internal and external stakeholders of not updating the RG for the known issues, in terms of anticipated numbers of licensing and inspection activities over the next several years? Since no issues were identified, there is no impact on licensing and inspection activities. 3. What is an estimate of the level of effort needed to address identified issues in terms of full-time equivalent and contractor resources? Not applicable. 4. Based on the answers to the questions above, what is the NRC staff action for this guide (Reviewed with no issues identified, Reviewed with issues identified for future consideration, Revise, or Withdraw)? Reviewed with no issues identified. 5. Provide a conceptual plan and timeframe to address the issues identified during the review. Not applicable. 9 Regulatory Guide Number: 4.20, Revision 1 Title: Constraint on Releases of Airborne Radioactive Materials to the Environment for Licensees Other Than Power Reactors Office/division/branch: NMSS/FCSE/ECB Technical Lead: Matthew Bartlett Staff Action Decided: Reviewed with no issues identified 1. What are the known technical or regulatory issues with the current version of the Regulatory Guide (RG)? There are no known technical or regulatory issues with Revision 1 of RG 4.20, published in April 2012. This RG describes methods that the NRC staff considers acceptable for meeting the constraint on airborne emissions of radioactive materials to the environment as described in Title 10 of