[Federal Register Volume 74, Number 205 (Monday, October 26, 2009)]
[Notices]
[Page 55074]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-25659]
-----------------------------------------------------------------------
NUCLEAR REGULATORY COMMISSION
[NRC-2009-0465]
Withdrawal of Regulatory Guides 4.5 and 4.6
AGENCY: Nuclear Regulatory Commission.
ACTION: Withdrawal of Regulatory Guides 4.5, ``Measurements of
Radionuclides in the Environment--Sampling and Analysis of Plutonium in
Soil'' and 4.6, ``Measurements of Radionuclides in the Environment--
Strontium-89 and Strontium-90 Analysis.''
-----------------------------------------------------------------------
FOR FURTHER INFORMATION CONTACT: George Powers, U.S. Nuclear Regulatory
Commission, Washington, DC 20555-0001, telephone: 301-251-7449 or e-
mail George.Powers@nrc.gov.
SUPPLEMENTARY INFORMATION:
I. Introduction
The U.S. Nuclear Regulatory Commission (NRC) is withdrawing
Regulatory Guide (RG) 4.5, ``Measurements of Radionuclides in the
Environment--Sampling and Analysis of Plutonium in Soil,'' and RG 4.6,
``Measurements of Radionuclides in the Environment--Strontium-89 and
Strontium-90 Analysis.'' Both of these guides were published in May
1974.
These regulatory guides provide prescriptive guidance to licensees
and applicants on the sampling and laboratory analysis of Strontium and
Plutonium. The guides provided guidance on compliance with a provision
in 10 CFR Part 20, ``Standards for Protection against Radiation.'' That
provision, 10 CFR 20.106, ``Concentrations in Effluents to Unrestricted
Areas,'' was deleted, and that subject matter is addressed in a new
section, 10 CFR 20.1302.
``Compliance with dose limits for individual members of the
public.'' Paragraphs (a) and (b) of 20.1302 contain the effluent
standards and allowable radionuclide concentrations in effluent
releases.
Updated performance based guidance for the measurement of plutonium
(Pu), strontium-89 (Sr\89\), and strontium-90 (Sr\90\) is now provided
through Regulatory Guide 4.15, ``Quality Assurance for Radiological
Monitoring Programs (Inception through Normal Operations to License
Termination)--Effluent Streams and the Environment,'' published July
2007. This guidance references NUREG-1576, ``Multi-Agency Radiological
Laboratory Analytical Protocols Manual (MARLAP),'' published in July
2004. MARLAP provides analytical detail for measurement of Pu, Sr\89\,
and Sr\90\ which includes methods described in RG 4.5 and 4.6 and more
recent methods and procedures that are also acceptable to the staff.
NUREG-1576 is available electronically through the NRC's Agencywide
Documents Access and Management System at http://www.nrc.gov/reading-rm/adams.html, under Accession No. ML060930645.
II. Further Information
The withdrawal of RGs 4.5 and 4.6 does not alter any prior or
existing licensing commitments or conditions based on their use. The
guidance provided in these regulatory guides is neither necessary nor
current. Regulatory guides may be withdrawn when their guidance is
superseded by congressional action or no longer provides useful
information.
Regulatory guides are available for inspection or downloading
through the NRC's public Web site under ``Regulatory Guides'' in the
NRC's Electronic Reading Room at: http://www.nrc.gov/reading-rm/ doc-
collections.
In addition, regulatory guides are also available for inspection at
the NRC's Public Document Room (PDR), Room O-1 F21, One White Flint
North, 11555 Rockville Pike, Rockville, MD 20852-2738. The PDR's
mailing address is US NRC PDR, Washington, DC 20555-0001. You can reach
the PDR staff by telephone at 301-415-4737 or 800-397-4209, by fax at
301-415-3548, and by e-mail to pdr.resource@nrc.gov.
Regulatory guides are not copyrighted, and Commission approval is
not required to reproduce them.
Dated at Rockville, Maryland, this 13th day of October, 2009.
For the Nuclear Regulatory Commission.
Andrea D. Valentin,
Chief, Regulatory Guide Development Branch, Division of Engineering,
Office of Nuclear Regulatory Research.
[FR Doc. E9-25659 Filed 10-23-09; 8:45 am]
BILLING CODE 7590-01-P