The Senate Appropriations Report 105-58, accompanying S. 1061, the bill making appropriations for the Departments of Labor, Health and Human Services, and Education for fiscal year (FY) 1998, requested that the National Institute for Occupational Safety and Health (NIOSH), Centers for Disease Control and Prevention (CDC), submit a report responding to six questions regarding a multi year study jointly funded by NIOSH and the National Cancer Institute (NCI), National Institutes of Health, to investigate the health effects of diesel fumes on workers in underground noncarbon mines. Specifically, the Senate report requested that NIOSH submit a report by December 1, 1997, detailing the following: 1. The extent to which time was been given for public comment on the draft study protocols; 2. The extent to which the study protocols have undergone peer review; 3. The makeup of the review group and the extent to which labor and industry were represented; 4. The extent to which modifications have been made to the study protocols which resulted from recommendations from the review process and/or public comment; 5. Whether any feasibility study has demonstrated the effectiveness of the study equipment, protocol, and design, particularly with regard to the accuracy of historical diesel exposure assessment; and 6. The extent to which data will be shared with participating organizations as it is collected.