The report only governed the use of chimps in publicly funded research, which the New York Times notes is 612 of 937 total American research chimps. It also does not recommend stopping the use of chimps outright, which Congress has debated for the past two years. The European Union banned chimp research in 2010. But the NRC committee recommends that chimps could still be used when they would be necessary to study diseases that endanger people, like a major disease outbreak. "Although the necessity of chimpanzees in research is quickly declining, animal research remains a critical tool in protecting and advancing the public's health," the report concludes.