This testimony reports the activities of NIOSH regarding worker notification. Although NIOSH shares the worker notification concerns of the bill's sponsor, they do not support H.R. 1309 as they feel strongly that additional legislation is not needed to proceed with worker notification. Worker notification is an integral part of much of the work at NIOSH. Workers are notified of the results of all field research and NIOSH shares findings with employers, relevant unions or employee representatives, the Department of Labor and appropriate State agencies. If the current proposal is activated NIOSH believes it will hinder their efforts in this area by establishing new bureaucratic structures and infeasible policy criteria, and by detracting from other research and training mandates. Additional points considered in this testimony include the technical feasibility of notifying each individual in these potentially enormous populations of workers, the identification of workers at risk, medical surveillance of employees, cost implications, and the criteria for notification.