Document: NRC Regulatory Guide
Document ID: ea8957a4-4db4-4bf0-8198-a667b7e5aa29
Document Type: regulatory_guide
Title: Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2111/ML21111A005.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.109
CFR Part: 
CFR Title: 

Content:
rovide guidance to assess exposure pathway doses for SMR and advanced reactor designs. In general, the calculation models, assumptions, parameter values, and methods for assessing the exposure pathway doses in RG 1.109, Revision 1, are adequate and conservative. However, revising the RG may assist new applicants and current licensees to perform more accurate dose calculations, may assist inspectors in determining if regulatory requirements are being adequately implemented, and may improve the effectiveness and efficiency in NRC’s licensing process. 3. What is an estimate of the level of effort needed to address identified issues in terms of full-time equivalent (FTE) and contractor resources? An estimate of the effort needed to review relevant technical and regulatory issues of this RG is 1 FTE. This work can be performed by the staff without the need for contract support. 4. Based on the answers to the questions above, what is the staff action for this guide (Reviewed with no issues identified, Reviewed with issues identified for future consideration, Revise, or Withdraw)? Revise 5. Provide a conceptual plan and timeframe to address the issues identified during the review. The staff has developed a NUREG on the NRCDose3 Code User Guide and Technical Manual included in the code installation program reflecting the updates to the code that incorporate a licensee’s or applicant’s proposed use of other ICRP dose methodologies. The NRCDose3 code is distributed by the NRC Radiation Protection Computer Code Analysis and Maintenance Program (RAMP) at https://ramp.nrc-gateway.gov/. The staff will update the RG to reflect the dose models, dose coefficients, parameter values, and changes implemented in the NRCDose3 code and NUREG User Guide and Technical Manual. The staff plans to develop a draft revision of this RG by April 2023 and issue it for public comment by the end of FY 2023. NOTE: This review was conducted in April 2021 and reflects the staff’s plans as of