The Office of Inspector General's (OIG) mission is to protect the integrity of Department of Health & Human Services (HHS) programs as well as the health and welfare of program beneficiaries. HHS OIG is the largest inspector general's office in the Federal Government, with approximately 1,600 dedicated to combating fraud, waste and abuse and to improving the efficiency of HHS programs. A majority of OIG's resources goes toward the oversight of Medicare and Medicaid — programs that represent a significant part of the Federal budget and that affect this country's most vulnerable citizens. OIG's oversight extends to programs under other HHS institutions, including the Centers for Disease Control and Prevention, National Institutes of Health, and the Food and Drug Administration. We carry out our mission using a multidisciplinary, collaborative approach, with each of our six components playing a vital role. A nationwide network of audits, investigations, and evaluations results in timely information as well as cost-saving or policy recommendations for decision-makers and the public.