United States Nuclear Regulatory Commission - Protecting People and the Environment

Information Notice No. 93-03: Recent Revisions to 10 CFR Part 20 and Change of Implementation Date to January 1, 1994

                                 UNITED STATES
                         NUCLEAR REGULATORY COMMISSION
                            WASHINGTON, D.C.  20555

                                January 5, 1993

Information Notice No. 93-03:   RECENT REVISIONS TO 10 CFR PART 20 AND
                                    CHANGE OF IMPLEMENTATION DATE TO 
                                    JANUARY 1, 1994


All byproduct, source, and special nuclear material licensees


NRC is issuing this information notice to notify addressees of the change in
the deadline for implementation of revised 10 CFR Part 20, and of recent
regulatory guides and draft guides published in conjunction with the revision. 
This information notice also describes two recent changes to the revised 
Part 20.  It is expected that licensees will review this information for
applicability to their operations, distribute it to appropriate staff, and
consider actions to prepare for, and incorporate, these changes.  However,
suggestions contained in this information notice are not new NRC requirements;
therefore, no specific action nor written response is required.

Description of Circumstances

In December 1990, the Commission approved the final revised Part 20,
"Standards for Protection Against Radiation," which became effective June 21,
1991.  At the time of the publication in the Federal Register, licensees were
permitted to delay implementation of the new revisions until January 1, 1993. 

In the fall of 1991, the Nuclear Management and Resources Council (NUMARC)
requested that the Commission extend the deadline for implementation of the
revised Part 20 for one year, to January 1, 1994.  This delay would allow all
licensees sufficient time to prepare for and implement for the rule.

In May 1992, the Commission published a proposed rule in the Federal Register,
to extend the implementation date of the revised Part 20 to January 1, 1994. 
Thirty-six comment letters were received on the proposed rule, with the
majority in favor of the extension.  

On August 26, 1992, the Commission published, in the Federal Register
(Attachment 1), a final rule that extends the implementation deadline date,
for the revised Part 20, to January 1, 1994.

On August 31, 1992, additional changes in the revised Part 20 were published
in the Federal Register (Attachment 2) in response to a Presidential
memorandum requesting agency review and modification of Federal government 


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regulations that cause any unnecessary burden.  The areas in Part 20 affected

1.    Exemptions to Posting Requirements (10 CFR 20.1903(b)) - to include
      exceptions to posting requirements for rooms occupied by patients
      otherwise releasable pursuant to 10 CFR Part 35.75;

2.    Procedures for Receiving and Opening Packages (10 CFR 20.1906(b)) - to
      eliminate certain provisions for contamination monitoring of packages
      containing certain types of radioactive material.


The Federal Register notices that describe each of these final rules are in
Attachments 1 and 2.  The notices give statements of consideration for the
change in the implementation deadline, and for changes to the revised Part 20.

Licensees are encouraged to review the applicable regulatory guides for
assistance in the implementation of Part 20.  The regulatory guides that have
been developed to assist with the implementation of the revised Part 20
include the following:

1.    Regulatory Guide 8.7, Revision 1, "Instructions for Recording and
      Reporting Occupational Exposure Data"

2.    Regulatory Guide 8.25, Revision 1, "Air Sampling in the Workplace"

3.    Regulatory Guide 8.34, "Monitoring Criteria and Methods to Calculate    
      Occupational Radiation Doses"

4.    Regulatory Guide 8.35, "Planned Special Exposures"

5.    Regulatory Guide 8.36, "Radiation Dose to the Embryo/Fetus"

Copies of issued regulatory guides may be purchased from the Government
Printing Office (GPO) at the current GPO price.  Information on prices may be
obtained by contacting the Superintendent of Documents, U.S. Government
Printing Office, P.O. Box 37082, Washington, D.C. 20013-7082, or by
telephoning (202) 275-2060 or (202) 275-2171.

Several additional guides have been published in draft form for comment and
should be published as regulatory guides by mid-93.  These are:

1.    DG-8005, "Assessing External Radiation Dose from Airborne Radioactive   

2.    DG-8009, "Interpretation of Bioassay Measurements (Proposed Revision to 
      Regulatory Guide 8.9)"

3.    DG-8013, "ALARA Levels for Effluents from Materials Facilities"

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For single copies of draft guides (which may be reproduced), requests should
be made to the U.S. Nuclear Regulatory Commission, Washington, DC 20555,
Attention: Office of Administration, Distribution and Mail Services Section.

This information notice requires no specific action nor written response.  If
you have any questions about the information in this notice, please contact
one of the technical contacts listed below or the appropriate regional office.

                                       ORIGINAL SIGNED BY

                                    Richard E. Cunningham, Director
                                    Division of Industrial and 
                                      Medical Nuclear Safety
                                    Office of Nuclear Material Safety 
                                      and Safeguards

Technical contacts:  Joseph E. DeCicco, NMSS
                     (301) 504-2067
                     Charleen T. Raddatz, RES
                     (301) 492-3645

1.  Copy of Federal Register, Vol. 57, No. 166, 
      August 26, 1992, pp. 38588-38590
2.  Copy of Federal Register, Vol. 57, No. 169, 
      August 31, 1992, pp. 39353-39358
3.  List of Recently Issued NMSS Information Notices
4.  List of Recently Issued NRC Information Notices
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