Implementation of Regulatory Guide 1.150, Ultrasonic Testing of Reactor Vessel Welds During Preservice and Inservice Examinations, Revision 1 (Generic Letter No. 83-15)
UNITED STATES
NUCLEAR REGULATORY COMMISSION
WASHINGTON, D. C. 20555
March 23, 1983
TO ALL LICENSEES OF OPERATING POWER REACTORS AND APPLICANTS FOR OPERATING
LICENSES (GENERIC LETTER 83-15)
SUBJECT: IMPLEMENTATION OF REGULATORY GUIDE 1.150, "ULTRASONIC TESTING OF
REACTOR VESSEL WELDS DURING PRESERVICE AND INSERVICE EXAMINATIONS,
REVISION 1
The original version of Regulatory Guide 1.150, "Ultrasonic Testing of
Reactor Vessel Welds During Preservice and Inservice Examinations," dated
June 1981, was reviewed by the Ad Hoc Committee of the Electric Utility
Industry. The Committee's review resulted in their recommending an
alternative method, which was presented in "Final Report - Recommended
Changes to Regulatory Guide 1.150," August 1982.
The NRC staff has evaluated the recommended alternative method in the report
and finds it an acceptable alternative. Therefore, this alternative method
has been added to the regulatory positions in Regulatory Guide 1.150, and
this Revision 1 is being issued as an active guide without prior issuance as
a draft guide for comment.
Except in those cases in which an applicant or licensee proposes an
acceptable alternative method for complying with specified portions of the
Commission's regulations, the method described in Revision 1 of the subject
Guide will be used in the evaluation of (1) the results of inservice
examination programs of all operating reactors after July 15, 1981, and (2)
the results of preservice examination program of all reactors under
construction performed after January 15, 1982. The recommendations of this
guide are not intended to apply to preservice examinations that have already
been completed. We recommend that all licensees modify their technical
specifications if appropriate, to make them consistent with the
recommendations in the subject Guide.
Any guidance in the subject Guide related to information collection
activities has been cleared under OMB Clearance No. 3150-0011, which expires
April 30, 1985.
Sincerely,
Darrell G. Eisenhut, Director
Division of Licensing
Office of Nuclear Reactor Regulation
830304008
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