Agencies may sponsor an employee's attendance at a conference as a developmental assignment under  section 4110 of title 5, United States Code, when—
    
    
        
        (a) 
         The announced purpose of the conference is educational or instructional;
     
    
        
        (b) 
         More than half of the time is scheduled for a planned, organized exchange of information between presenters and audience which meets the definition of training in  section 4101 of title 5, United States Code;
     
    
        
        (c) 
         The content of the conference is germane to improving individual and/or organizational performance, and
     
    
        
        (d) 
         Development benefits will be derived through the employee's attendance.