216.3—Definitions.
         As used in this part—
    
    
    
        
        (b) 
        
            State means a State participating in investigative and surveillance activities under 49 U.S.C. 20105.
    
    
    [41 FR 18657, May 6, 1976, as amended at 64 FR 25659, May 12, 1999]