These hearings addressed cooperative efforts of the United States and the People's Republic of China under the 1979 agreement on science and technology. Thus far, there are more than 20 signed protocols (included in appendices) implementing the agreement in various scientific and technological areas. Activities in such areas as energy, health, communications, transportation, and management science have important implications for development of trade between the two countries; useful exchanges in these areas are essential ingredients for an economic and commercial relationship benefiting both nations. The hearings include an overview of the activity under the 1979 agreement from the State Department (which is responsible for coordinating the United States-China science and technology relationship on a daily basis) and testimony on the history and status of two protocols involving the Department of Commerce, the protocol-related work of the Department of Energy, and prospects for a newly signed protocol of the Department of Transportation. The information provided will be used to review the protocols to identify where important progress has been made (and where it has not) and to learn about any special problems that may exist to help overcome impediments to fuller cooperation, and to develop stronger ties. (JN)