Integrated Scheduling for Implementation of Plant Modifications (Generic Letter 83-20)

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

                                May 9, 1983 

TO ALL OPERATING REACTOR LICENSEES AND HOLDERS OF CONSTRUCTION PERMITS 

Gentlemen: 

SUBJECT:  INTEGRATED SCHEDULING FOR IMPLEMENTATION OF PLANT MODIFICATIONS 
          (GENERIC LETTER 83-20) 

On May 3, 1983 the Commission issued Amendment No. 91 (Enclosure 1) to the 
Duane Arnold Energy Center (DAEC) operating license. This amendment 
incorporates a license condition which approves Iowa Electric Light and 
Power Company's "Plan for the Integrated Scheduling of Plant Modifications 
for the Duane Arnold Energy Center." 

The Nuclear Regulatory Commission's statement of policy and planning 
guidance for 1983 endorses the concept of establishing implementation 
schedules for new and existing requirements which reflect the importance of 
the safety requirement to the public health and safety and the licensee's 
ability to complete the necessary engineering, evaluation and design. 
Enclosure 1 represents the first step towards development of an industry 
wide program to establish realistic schedules for implementation of safety 
improvements, both utility initiated and NRC-required, at operating 
reactors. 

Enclosure 1 is provided for your information and possible use. Although this
enclosure represents an approach which is acceptable at present to the NRC, 
other approaches may be acceptable and will be considered if you elect to 
adopt such a plan. 

Please contact your Project Manager if you have any questions on this 
matter. 

                              Sincerely, 


                              Darrell G. Eisenhut, Director 
                              Division of Licensing 
                              Office of Nuclear Reactor Regulation 

Enclosure: 
As Stated 

cc:  w/enclosure 
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