NUREG/CR-0181 (Generic Letter 78-27)

GL78027 

                               UNITED STATES 
                       NUCLEAR REGULATORY COMMISSION 
                          WASHINGTON, D.C. 20555 
                                     
                               July 18, 1978 

All Power Reactor Licensees and Applicants with Docketed Applications To 
Construct or Operate a Power Reactor 

Gentlemen: 

This letter and enclosed NUREG/CR-0181 are being sent to all licensees 
authorized to operate a nuclear power reactor and to all applicants with 
applications for a license to operate or construct a power reactor. 

NUREG/CR-0181 provides basic barrier and penetration data needed for 
physical security system assessment.  The data provided in the NUREG is 
being used by NRC during the reactor safeguards review process. 

Additional copies of this document can be obtained from the National 
Technical Information Service, Springfield, Virginia 22161, at current 
prices. 

                                        Sincerely, 

                                        James R. Miller, Assistant Director 
                                          for Reactor Safeguards 
                                        Division of Operating Reactors 

Enclosure:
NUREG/CR-0181

cc Without enclosure:
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