574 



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Predictive mathematical models for chemical, thermal and 



mechanical response of the sediment clay are complete, based on 



laboratory testing of deep ocean sediments. Field confirmation 

 is still required. 



International Subseabed Assessment 



International cooperation benefits all nations assessing the 

 feasibility of subseabed disposal. Such cooperation provides 

 timely exchange of research results from other programs on 

 subseabed disposal and provides an opportunity for a continuous 

 peer review of the research and development programs. 



Should the subseabed concept prove to be technically and 

 environmentally feasible, it is reasonable to assume that 

 international cooperation would be required to develop an 

 operational repository. Such international cooperation is 

 appropriate because the repository would be located under 

 international waters and would need to meet applicable 

 international standards and criteria established by recognized 

 international regulatory organizations. 



Since 1976, the Seabed Working Group (SWG) referred to earlier 

 and of which the United States is a member, has coordinated 

 data exchange, continuing research and the development of the 

 seabed disposal concept. 



