The Idaho National Laboratory (INL) hosted the 2005 RELAP5/ATHENA International Users Seminar at the Snow King Resort, Jackson Hole, Wyoming, USA, September 7-9 , 2005.The following schedule has been established for meeting participants:June 1 – Abstracts and registration forms submitted to INLJune 30 – Papers or presentations submitted to INLAugust 1 – Registration fee submitted to INLAugust 15 – Preliminary agenda distributedThe final agenda will be distributed at the meeting.