Document: NRC Regulatory Guide
Document ID: c0dbb594-6262-4b83-96b1-366758ad9676
Document Type: regulatory_guide
Title: Interim Licensing policy on as low as Practicable for Gaseous Radiodine Releases from Light-Water-Cooled Nuclear Power Reactors (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1229/ML12298A137.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.42
CFR Part: 
CFR Title: 

Content:
ive iodine in gaseous effluents as low as practicable. The following paragraphs provide additional specific guidance to licensees in this respect. In using the guidance provided in this section, it is expected that the annual releases of radioactive iodine in gaseous effluents from LWRs can generally be maintained within the levels set forth as numerical guidance for design objectives in C.l.a and C.l.b. a. If the quantity of radioactive iodine actually released in gaseous effluents during any calendar quarter exceeds one- half the design objective annual quantity derived pursuant to C.l.a and C.l.b, the licensee should: (1) Make an investigation to identify the causes for such release rates; (2) Define and initiate a program of action to reduce such release rates to the design objective levels; and (3) Report these actions in writing to the Commission within 30 days!- from the end of the quarter during which the release occurred. 5/ -- Paragraph 50.36a(a)(2) requires the licensee to submit certain reports to the Commission with regard to the quantities of the principal radio- nuclides released to unrestricted areas. It also provides that, on the basis of such reports and any additional information the Commission may obtain from the licensee and others, the Commission may from time to time require the licensee to take such action as the Commission deems appropriate. 1.42-5 b. If the quantity of radioactive iodine actually released in gaseous effluents during any calendar quarter exceeds twice the design objective annual quantity or, during any period of 12 consecutive months, exceeds four times the design objective annual quantity derived pursuant to C.l.a and C.l.b, the Commission will take appropriate action to assure that such release rates are reduced.- c. The licensee should establish an appropriate surveillance and monitoring program to.: (1) Provide data on quantities of radioactive iodine released in gaseous effluents to assure that the guidance of C.l.a and