This part does not apply to:
    
    
        
        (a) 
         G&G prospecting activities conducted by, or on behalf of, the lessee on a lease on the OCS;
     
    
    
        
        (c) 
         Postlease activities for mineral resources other than oil, gas, and sulphur, which are covered by regulations at  30 CFR part 282; and
     
    
        
        (d) 
         G&G exploration or G&G scientific research activities related to oil, gas, and sulphur, including gas hydrates, which are covered by regulations at  30 CFR part 251.