in accordance with the commissioned corps's four Core Values: Leadership, Excellence, Integrity, and Service. Officers execute the mission of the commissioned corps in the following ways: Help provide healthcare and related services to medically underserved populations: to Native Americans, Alaska Natives, and to other population groups with special needs; Prevent and control disease, identify health hazards in the environment and help correct them, and promote healthy lifestyles for the nation's citizens; Improve the nation's mental health; Ensure that drugs and medical devices are safe and effective, food is safe and wholesome, cosmetics are harmless, and that electronic products do not expose users to dangerous amounts of radiation; Conduct and support biomedical, behavioral, and health services research, and communicate research results to health professionals and the public; and Work with other nations and international agencies on global health problems and their solutions. As of 2019, the most common agency for commissioned corps officers was the Indian Health Service, followed by the Food and Drug Administration, and then the Centers for Disease Control and Prevention. The increased benefits and pay of commissioned corps officers is considered especially beneficial for the Indian Health Service, where recruitment is difficult due to the remote locations of many of its jobs. In addition, the commissioned corps provides officers (medical officers, dental officers, therapists, environmental health officers, etc.) to other uniformed services, primarily the United States Coast Guard and the National Oceanic and Atmospheric Administration Commissioned Officer Corps (NOAA Corps), which do not commission their own medical or dental officers. The Commissioned Corps provides a number of officers to support the Coast Guard throughout the country, including within the Coast Guard's senior leadership: The Coast Guard's chief medical officer is a rear admiral in the Public Health Service Commissioned Corps. Commissioned corps officers also may be detailed to other U.S. Government agencies, including the Department of Defense, TRICARE, the Department of Justice (Federal Bureau of Prisons), the State Department, the Department of Homeland Security, and the Department of the Interior (National Park Service). Commissioned Corps officers may develop individual memoranda of understanding (MOUs) with other organizations, including state and local health agencies and non-governmental organizations (NGOs). The commissioned corps is often called upon by other federal, state, and local agencies to aid and augment in times when those agencies' resources are overwhelmed. These responses are designated as deployments by the Commissioned Corps, if the deployment is outside