The following individuals or entities may represent an individual Indian landowner in granting a permit:
    
    
        
        (a) 
         An adult with custody acting on behalf of their minor children;
     
    
        
        (b) 
         A guardian, conservator, or other fiduciary appointed by a court of competent jurisdiction to act on behalf of an individual Indian landowner;
     
    
        
        (c) 
         An adult or legal entity who has been given a written power of attorney that:
     
    
        
        (1) 
         Meets all of the formal requirements of any applicable tribal or state law;
     
    
        
        (2) 
         Identifies the attorney-in-fact and the land to be permitted; and
     
    
        
        (3) 
         Describes the scope of the power granted and any limits thereon.