See: http://www.ietf.org/meetings/meetings.html

Summer 2002 - 54th IETF
        July 14-19, 2002
        Yokohama, Japan
        Host: WIDE Project
        Sponsor: Fujitsu

Important Meeting Dates

April 15 - Working Group and BOF scheduling begins 
April 18 - Registration opens 
April 23 - Hotel Accommodation Information 
June 21 - Internet Draft Cut-off for initial document (-00) submission at 17:00 ET 
June 21 - Working Group and BOF scheduling closes at 17:00 ET 
June 28 - Internet Draft final submission cut-off at 17:00 ET 
July 1 - Pre-registration and Pre-payment cut-off at 12:00 noon ET 
July 8 - Registration cancellation cut-off at 17:00 ET 
July 11 - Working Group agendas due at 12:00 noon ET 
July 14-19 - 54th IETF Meeting in Yokohama, Japan 
August 15 - Proceedings submission cutoff by 17:00 ET 

* All times are in US/Eastern Time