On June, 1992, JAERI and CHECIR concluded an agreement on the Implementation of Research at the Chernobyl Center for International Research (CHECIR). Based on the agreement, JAERI started `Study on Assessment and Analysis of Environmental Radiological Consequences and Verification of an Assessment System.` CHECIR and JAERI make it a rule to hold steering conference twice a year in order to ensure mutual understanding and exchange of opinion because it is indispensable for smooth and effective implementation of this project. The first steering conference in Japan was held in February of 1994, and three research leaders of CHECIR side were invited from Ukraine. At that time, they gave lectures concerning the environmental Headquarter of JAERI. Progress reports on subject-1 and subject-2 were given from JAERI side at the steering conference. Five of the presented papers are indexed individually. (author).