148.400—What does this subpart do?
        
        (a) 
         This subpart prescribes requirements under 33 U.S.C. 1504(b) for the activities that are involved in site  evaluation and pre-construction testing at potential locations for deepwater ports and that may:
    
    
    
    
    
        
        (b) 
         For the purpose of this subpart, “site evaluation and pre-construction testing” means studies performed at potential deepwater port locations, including:
    
    
    
        
        (2) 
         Detailed studies of the topographic and geologic structure of the ocean bottom to determine its ability to support offshore structures and other equipment; and