Meteor-3M(2)/TOMS-5 is a cooperative joint mission between the Russian Space Agency (RSA) and the United States (US) National Aeronautics and Space Administration (NASA). A US Total Ozone Mapping Spectrometer (TOMS) instrument is scheduled to be flown aboard a Russian Meteor-3M satellite in the year 2000. The main science objectives of the mission are to continue global total-ozone measurements to monitor long-term change in global total ozone, to understand processes related to the Antarctic ozone hole, and to improve the understanding of the processes that govern global total ozone. Secondary objectives are to measure aerosol amounts (dust, smoke, volcanic ash, and sulfates) and SO2. This paper describes the Meteor-3M(2) spacecraft, the TOMS-5 experiment, operations of Meteor- 3M(2)/TOMS-5, and plans for data processing, data archiving and distribution.