581. SEA EDUCATION ASSOCIATION: SEA 



SEA offers ocean research opportunities at sea and cooperates 

 with the U.S. Government in its programs to advance marine education. 



582. SHELLFISH INSTITUTE OF NORTH AMERICA: SINA 



Organized in 1904 and originally called the Oyster Institute of 

 North America, SINA promotes the protection of shellfish areas and 

 sponsors their growth. 



583. SHIPBUILDING COUNCIL OF AMERICA: SCA 



Formed in 1921, SCA includes among its concerns the control of 

 waste discharge from ships and improvements in the design of ports. 



584. SIERRA CLUB AND FRIENDS OF THE EARTH: SC&FE 



Founded in 1892 to restore the quality of the natural environ- 

 ment and promote the integrity of ecosystems, SC&FE is a vocal lobby- 

 ing group. 



585. SOCIETY OF ECONOMIC PALEONTOLOGISTS AND MINERALOGISTS: SEPM 

 Established in 1927 and affiliated with the American Associa- 

 tion of Petroleum Geologists, SEPM promotes research in coastal 

 sedimentology, oceanic plankton, and deep marine sediments. 



586. SOCIETY OF EXPLORATION GEOPHYSICISTS: SEG 



Established in 1930, SEG promotes research and is concerned with 

 seismic explorations of the continental and outer continental shelves. 



587. SPORT FISHING INSTITUTE: SFI 



Organized in 1949, SFI promotes a program of ecological research, 

 fish conservation education, and aquatic sciences. The Sport Fishing 

 Research Foundation (SFRF), an affiliate of SFI formed in 1967, ceased 



588. STANFORD RESEARCH INSTITUTE: SRI 



An independent nonprofit research organization established in 

 1946 and formerly affiliated with Stanford University, SRI performs 

 various research activities under contract to the U.S. Government 

 and in recent years has been participating in the U.S. MODE and 

 POLYMODE efforts. 



589. THE COASTAL SOCIETY: TCS 



A nonprofit professional society, TCS comprises individuals and 

 organizations concerned with the conservation and proper management 

 of the coastal zone. 



590. TUNA RESEARCH FOUNDATION: TRF 



Formerly the California Fish Canners Association, TRF was 

 founded in 1932. 



591. UNDER SEAS EQUIPMENT MANUFACTURERS ASSOCIATION: USEMA 

 A trade group formed in 1966. 



592. UNDERSEA MEDICAL SOCIETY: UMS 



UMS members are concerned with the health and safety of divers. 



593. WATER POLLUTION CONTROL FEDERATION: WPCF 



Organized in 1928, WPCF advances knowledge in water pollution 

 control. 



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