Chernobyl Accident Study Act - Directs the Nuclear Regulatory Commission to conduct a study of the nuclear power reactor accident in Chernobyl in the Soviet Union and attempt to determine the cause of such accident. Prescribes the contents of such study, including: (1) the sequence of accident events; (2) the consequences of the accident; (3) the containment characteristics of the Chernobyl reactor; (4) evacuation contingency plans; and (5) implications of the accident for the U.S. nuclear energy program. Requires the Commission to report to the President and the Congress on the findings of the study. Limits the amount of appropriated funds that the Commission may use for such study.