ML20150E699
| ML20150E699 | |
| Person / Time | |
|---|---|
| Issue date: | 04/27/1988 |
| From: | Beckjord E NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | Breaux, Sharp P, Udall M SENATE, SENATE, ENVIRONMENT & PUBLIC WORKS |
| Shared Package | |
| ML20150E547 | List: |
| References | |
| FRN-52FR24015, RULE-PR-50 AC29-2-02, AC29-2-2, NUDOCS 8807150254 | |
| Download: ML20150E699 (6) | |
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APR 2 71988 i
i The Honorable John B. Breaux. Chaiman Subcomittee on Nuclear Regulation Comittee on Environment and Public Works United States Senate r
Washington, DC 20510 j
Dear Mr. Chainnan:
Enclosed for the infomation of the Subcomittee are copies of a notice of a final rule to amend i 50.55a of the Comission's regulations codified in 10 CFR Part 50. Section 50.55a requires holders of construction permits and licenses to cenform to the requirements of certain national codes in the design, fabrica-tion, construction, testing and inspection of specified reactor components and systems.
This section of the regulation incorporates by reference Division I rules of i
Section III, "Rules for the Construction of Nuclear Power Plant Components,"
and Division 1, rules of Section XI, "Rules for Inservice Inspection of Nuclear i
Power Plant Components," of the American Society of Mechanical Engineers Boiler and Pressure Yessel Code (ASME Code). ASME procedures provide that editions of the ASME Code be revised every three years and that addenda to the editions be issued on an annual basis.
Prior to 1986, addenda were issued on a semiannual basis. The present reference endorses the 1983 Edition and Addenda through the Sumer 1984 Addenda for Section III Division 1, and the 1983 Edition and, subject to certain limitations and modifications, addenda through the Sumer 1983 Addenda for Section XI, Division 1.
This arrendment incorporates by reference the Winter 1984 Addenda, Summer 1985 Addenda. Winter 1985 Addenda, and 1986 Edition of Section III, Division 1, and i
the Winter 1983 Addenda Sumer 1984 Addenda. Winter 1984 Addenda, Sumer 1985 Addenda Winter 1985 Addenda and 1986 Edition of Section XI, Division 1 of the ASME Code. These addenda and edition have been reviewed by the staff and, with one exception, found to be acceptable. The exception relates to the acceptance criteria for flawed austenitic piping. A limitation is placed on the use of the acceptance criteria for flawed austenitic piping that are contained in the Winter 1983 Addenda and Winter 1984 Addenda to Section XI, Division 1.
The limitation requires that for certain types of welds, the acceptance criteria be used as improved by the Winter 1985 Addenda.
In addition, this final rule recognizes the improvements made in the Winter 1983 addenda to Section XI regarding the examination of pressure retaining welds in ASME Code Class 2 i
piping by limiting the need to implement the existing modification pertaining to Class 2 piping examinations to ASME Code editions and addenda up to the 1983 1
Edition with addenda up through the Sumer 1983 addenda, h71y254eso7og 50 52FR24015 PDR 1
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2 Comments were received from three individuals during the public comment period.
Two of the individuals supported the rule as proposed and provided helpful suggestions for clarifying the amendment.
The third individual had a general concern with NRC's policy of endorsing national standards and would prefer that NRC develop its own reouirements.
It is explained in the Supplementary Informa-tion to the final rule that the NRC staff participates in the development of national standards to help define acceptable ways of implementing the NRC's basic safety regulations, and to ensure that NRC experience and data are part of the information base used to support development of the standards. This is consistent with OMB Circular No. A-119 (Revised), which provides policy and administrative guidance to federal agencies regarding participation in the development and use of voluntary standards.
In view of the routine nature of the amendment, we do not consider that a public announcement is warranted.
Sincerely.
Ti.
Eric S. Beckjord, irector Office of Nuclear Regulatory Research
Enclosures:
As stated cc: The Honorable Alan K. Simpson i
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APR 2 71988 l
i The Honorable Morris X. Udall, Chainnan Subcomittee on Energy and the Environment Comittee on Interior and Insular Affairs United States House of Representatives Washington, DC 20515
Dear Mr. Chaiman:
Enclosed for the information of the Subcomittee are copies of a notice of a final rule to amend i 50.55a of ^he baission's regulations codified in 10 CFR Part 50. Section 50.55a requires holders of construction permit.: and licenses to conform to the requirements of certain national codes in the design, fabrica-tion, construction, testing and inspection of specified reactor components and systems.
j This section of the regulation incorporates by reference Division I rules of Section III, "Rules for the Construction of Nuclear Power Plant Corponents,"
and Division 1, rules of Section XI, "Rules for Inservice Inspection of Nuclear Power Plant Components," of the American Society of Mechanical Engineers Boiler and Pressure Yessel Code (ASME Code). ASME procedures provide that editions Of the ASME Code be revised every three years and that addenda to the editions be issued on an annual basis. Prior to 1986, addenda were issued on a semiannual l
basis. The present reference endorses the 1983 Edition and Addenda through the Sumer 1984 Addenda for Section III, Division 1, and the 1983 Edition and, i
subject to certain limitations and modifications, addenda through the Sumer 1983 Addenda for Section XI, Division 1.
This amendment incorporates by reference the Winter 1984 Addenda, Sumer 1985 Addenda, Winter 1985 Addenda, and 1986 Edition of Section III, Division 1 and the Winter 1983 Addenda, Sumer 1984 Addenda Winter 1984 Addenda, Sumer 1985 Addenda, Winter 1985 Addenda and 1986 Edition of Section XI, Division 1, of the ASME Code. These addenda and edition have been reviewed by the staff and, with one exception, found to be acceptable. The exception relates to the acceptance criteria for flawed austenitic piping. A limitation is placed on the use of the acceptance criteria for flawed austenitic piping that are contained in the Winter 1983 Addenda and Winter 1984 Addenda to Section XI, Division 1.
The limitation requires that for certain types of welds, the acceptance criteria be used as improved by the Winter 1985 Addenda.
In addition, this final rule recocntres the improvements made in the Winter 1983 addenda to Section XI regarding the examination of pressure retaining welds in ASME Code Class 2 piping by limiting the need to implement the existing modificction pertaining i
to Cless 2 piping examinations to ASME Code editionr. and addenda up to the 1983 Edition with addenda up through the Sumer 1983 addenda.
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Comments were received from three individuals during the public comment period.
Two of the individuals supported the rule as proposed and provided helpfu' suggestions for clarifying the amendment.
The third individual had a general concern with NRC's policy of endorsing national standards and would prefer it NRC develop its own requirements.
It is explained in the Supplementary I" nma-tion to the final rule that the NRC staff participates in the development of national standards to help define acceptable ways of implementing the NRC's basic safety regulations, and to ensure that NRC experience and data are part of the information base used to support development of the standards. This is consistent with OMB Circular No. A-119 (Revised), which provides policy and administrative guidance to federal agencies regarding participation in the development and use of voluntary standards.
In view of the reutine nature of the amendment, we do not consider that a public ar. suncement is warranted.
Sincerely, Eric S. Beckjord, i rector Office of Nuclear Regulatory Research
Enclosures:
As stated cc: The Honorable Manuel Lujan, Jr.
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APR 2 719a9 The Honorable Philip R. Sharp, Chaiman Subcomittee on. Energy and Power Comittee on Energy and Comerce United States House of Representatives Washington, DC 20515
Dear Mr. Chairman:
Enclosed for the infonnation of the Subcomittee are copies of a notice of a final rule to amend i 50.55a of the Comission's regulations codified in 10 CFR Part 50. Section 50.55a reovires holders of construction pennits and licenses to conform to the requirements of certain national codes in the design, fabrica-tion, construction, testing and inspection of specified reactor components and j
systems.
This section of the regulation incorporates by reference Division I rules of Section III, "Rules for the Construction of Nuclear Power Plant Components,"
and Division 1, rules of Section XI, "Rules for Inservice Inspection of Nuclear Power Plant Components," of the American Society of Mechanical Engineers Boiler andPressureVesselCode(ASMECode). ASME procedures provide that editions of the ASME Code be revised every three years and that addenda to the editions be issued on an annual basis.
Prior to 1986, addenda were issued on a semiannual basis. The present reference endorses the 1983 Edition and Addenda through the Sumer 1984 Addenda for Section III, Division 1, and the 1983 Edition and, subject to certain limitations and modifications, addenda through the Sumer 1983 Addenda for Section XI. Division 1.
This amendment incorporates by reference the Winter 1984 Addenda, Sumer 1985 Addenda. Winter 1985 Addenda, and 1986 Edition of Section III, Division 1, and the Winter 1983 Addenda, Sumer 1984 Addenda. Winter 1984 Addenda, Sumer 1985 Addenda, Winter 1985 Addenda and 1986 Edition of Section XI, Division 1, of the ASME Code. These addenda and edition have been reviewed by the staff and, with one exception, found to be acceptabla. The exception relates to the acceptance criteria for flawed austenitic piping. A limitation is placed on the use of the acceptance cr'teria for flawed austenitic piping that are contained in the Winter 1983 Addenaa and Winter 1984 Addenda to Section XI, Division 1.
The limitation requires that for certain types of welds, the acceptance criteria be used as improved by the Winter 1985 Addenda.
In addition, this final rule recognizes the improvements made in the Winter 1983 addenda to Section XI regarding the examination of pressure retaining welds in ASME Code Class 2 piping by limiting the need to implement the existing modification pertaining to Class 2 piping examinations to ASME Code editions and addenda up to the 1983 Edition with addenda up through the Sumer 1983 addenda.
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Comments were received from three individuals during the public comment period.
Two of the individuals supported the rule as proposed and provided helpful suggestions for clarifying the amendment.
The third individual had a general concern with NRC's policy of endorsing national standards and would prefer that NRC develop its own requirements.
It is explained in the Supplementary Informa-tion to the final rule that the NRC staff participates in the development of national standards to help define acceptable ways of implementing the NRC's basic safety regulations, and to ensure that NRC experience and data are part of t
information base used to support development of the standards. This is ct.aistent with OMB Circular No. A-119 (Revised), which provides policy and administrative guidance to federal agencies regarding participation in the development and use of voluntary star.dards.
In view of the routine nature of the amendment, we do not consider that a public announcement is warranted.
Sincerely, Eric S. Beckjord, iirector Office of Nuclear
- egulatory Research
Enclosures:
As stated cc: Representative C. J. Moorhead L
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