148.240—How does a State or a person intervene in a formal hearing?
        
        (b) 
         A person must file a petition of intervention within 10 days of notice that the formal hearing is issued. The petition must:
    
    
    
    
    
        
        (c) 
         An adjacent coastal State need only file a notice of intervention with the ALJ Docketing Center.
    
    
    
        
        (e) 
         If the ALJ denies a petition of intervention, the petitioner may file a notice of appeal with the ALJ Docketing Center within 7 days of the denial.
    
    
    
        
        (2) 
         Parties who wish to file a brief in support of or against the notice of appeal may do so within 7 days of filing the notice.
    
    
        
        (f) 
         The Commandant (CG-5) will rule on the appeal. The ALJ does not have to delay the proceedings for intervention appeals.