1     Scope        
 2     References             
 3     Definitions
        3.1     Terms defined elsewhere      
        3.2     Terms defined in this Recommendation          
 4     Abbreviations and acronyms           
 5     Equipment test requirements          
        5.1     Early time HEMP (E1)            
        5.2     Intermediate time HEMP (E2)            
        5.3     Late time HEMP (E3)
 6     Test methods         
        6.1     Radiated tests           
        6.2     Conducted tests        
 7     Protection concepts for buildings and enclosures     
        7.1     Protection concepts for buildings       
        7.2     Protection concepts for shielded enclosures   
 8     HEMP immunity tests and levels     
        8.1     Immunity test            
        8.2     Performance criteria
        8.3     HEMP immunity requirements for equipment
        8.4     HEMP immunity tests levels  
Annex A – Guide for application of protection approach    
        A.1     Introduction 
        A.2     Protection approaches           
        A.3     Protection concepts  
        A.4     Topological considerations    
Appendix I – Immunity level comparison between Recommendations ITU-T K.48/ITU-T K.20 and [IEC 61000-6-6]