Three agencies form the core for NTP: National Institute for Occupational Safety and Health of the Centers for Disease Control and Prevention; U.S. Food and Drug Administration, primarily through the National Center for Toxicological Research; and National Institute of Environmental Health Sciences of the National Institutes of Health.
NTP is located administratively at NIEHS, and Linda Birnbaum, Ph.D., is director of both NIEHS and NTP. Beginning January 7, 2018, Brian Berridge, D.V.M., Ph.D., serves as NTP Associate Director and director of the NTP Division at NIEHS, herein referred to as NIEHS/NTP, which is a focal point for many NTP activities. NIEHS and NTP espouse best research practices and embrace developments in technology to discover how the environment affects people, maintaining leadership in the field of environmental health sciences by applying innovative research to address public health issues.
John Howard, M.D. is director of NIOSH. Staff from two NIOSH divisions participate in NTP activities. Elizabeth Whelan, Ph.D., chief of the Industry-wide Studies Branch, and Cheryl Estill, Ph.D., supervisor of Industrial Hygiene, manage NTP activities within the Division of Surveillance, Hazard Evaluations, and Field Studies. Donald Beezhold, Ph.D., is the principal investigator for the "Immunotoxicity of Workplace Xenobiotics" project through a NIOSH-NIEHS interagency agreement.
NIOSH’s participation in NTP is consistent with its mandate to protect worker health and safety under the Occupational Safety and Health Act and the Federal Mine Safety and Health Act.
William Slikker Jr., Ph.D., director of FDA/NCTR, provides management oversight and coordination of NTP activities within NCTR. Their scientists partner with other researchers in FDA, other government agencies, academia, and industry to provide innovative technology, methods development, vital scientific training, and technical expertise. NCTR conducts an array of studies that reflect the NTP mission and are critical in supporting FDA product centers and their regulatory roles.