Clarification Of Surveillance Requirements for Diesel Fuel Impurity Level Tests (Generic Letter No. 83-26)

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

                                July 5, 1983



TO ALL APPLICANTS FOR OPERATING LICENSES AND HOLDERS OF CONSTRUCTION PERMITS 
FOR POWER REACTORS 


Gentlemen: 

Subject:  Clarification of Surveillance Requirements for Diesel 
          Fuel Impurity Level Tests (Generic Letter No. 83-26) 


It has come to our attention that the Surveillance Requirements for diesel 
fuel impurity level tests as stated in the Standard Technical Specifications
(STS) in use by applicants for operating licenses require clarification.  
The current revision of the STS for each nuclear power reactor vendor does 
not clearly reflect the relationship between the STS testing requirements 
for diesel fuel impurity levels; guidance given in Regulatory Guide 1.137, 
Revision 1, and ANSI N195 (ASTM D270, ASTM D975 and ASTM D2274); and the NRC
staff review performed in accordance with Standard Review Plans (SRP's 9.5.4
through 9.5.8).  In order to clarify this relationship, the Surveillance 
Requirements for diesel fuel impurity level tests have been modified. 

We have enclosed the revised Surveillance Requirements for diesel fuel 
impurity level tests that are to be used in your submittal of proposed 
Technical Specifications, or, if your proposed Technical Specifications have
already been submitted, the staff will make the necessary revisions.  These 
changes will also be incorporated in the next revision of the STS for all 
nuclear power reactor vendors.  The generic changes are indicated by a line 
in the margin of the Surveillance Requirements. 

This request has been approved by OMB Clearance Number 3150-0011, which 
expires April 30, 1985. 

                                    Sincerely, 

                                    Darrell G. Eisenhut, Director 
                                    Division of Licensing 

Enclosure: "Revised Surveillance Requirements 
  for Diesel Fuel Impurity Level Tests" 


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