1    
Scope  
 2    
Normative references        
        2.1     Identical Recommendations | International Standards           
        2.2     Paired Recommendations | International Standards equivalent in
technical content     
 3    
Definitions   
        3.1     Registration terms   
        3.2     International name terms     
        3.3     ASN.1 terms          
        3.4     Directory terms       
        3.5     Message Handling Systems terms    
 4     Abbreviations    
 5     General       
 6     Registration Authority       
 7     Registration procedures