| Study Group | 
			Name | 
			Chairman | 
		
		
			| Study Group 2 | 
			Network and service operation | 
			Mr. G. Gosztony (Hungary) | 
		
		
			| Study Group 3 | 
			Tariff and accounting principles including related telecommunications 
			economic and policy issues | 
			Mr. T. Matsudaira (Japan) | 
		
		
			| Study Group 4 | 
			TMN and network maintenance | 
			Mr. D. Sidor (United States) | 
		
		
			| Study Group 5 | 
			Protection against electromagnetic environment effects | 
			Mr. G. Meineri (Italy) | 
		
		
			| Study Group 6 | 
			Outside plant | 
			97-99 - Mr. Molleda (Spain)
  2000 - Mr. J. R. Osterfield 
			(United Kingdom) | 
		
		
			| Study Group 7 | 
			Data networks and open system communications | 
			Mr. H. Bertine (United 
			States) | 
		
		
			| Study Group 8 | 
			Characteristics of telematic systems | 
			Mr. W. Staudinger (Germany) | 
		
		
			| Study Group 9 | 
			Television and sound transmission 
			  | 
			Mr. J.L. Tejerina (Spain) | 
		
		
			| Study Group 10 | 
			Languages and general software aspects for telecommunication systems 
			  | 
			Mr. A. Sarma (Germany) | 
		
		
			| Study Group 11 | 
			Signalling requirements and protocols | 
			Mr. S. Kano (Japan) | 
		
		
			| Study Group 12 | 
			End-to-end transmission performance of networks and terminals | 
			97-99 Mr. M. Cao (China) 
			2000 - Mr. C.A Dvorak (United States) | 
		
		
			| Study Group 13 | 
			General network aspects | 
			Mr. B.W. Moore  
			(United Kingdom) | 
		
		
			| Study Group 15 | 
			Transport networks, systems and equipment | 
			Mr. P. Wery (Canada) | 
		
		
			| Study Group 16 | 
			Multimedia services and systems | 
			Mr. P.A. Probst 
			(Switzerland) | 
		
		
			| TSAG | 
			Telecommunication Standardization Advisory Group | 
			Mr. G. Fishman (United 
			States) |