<Ul> <Li> Office of Probation and Pretrial Services </Li> </Ul> <Li> Office of Probation and Pretrial Services </Li> <P> Independent Agencies and Quasi-official Corporations </P> <Ul> <Li> Central Intelligence Agency, Security Protective Service (CIA SPS) </Li> <Li> United States Environmental Protection Agency, Criminal Investigation Division (EPA CID) <Ul> <Li> Office of Inspector General (EPA OIG) </Li> </Ul> </Li> <Li> National Aeronautics and Space Administration, Office of Protective Services (NASA OPS) <Ul> <Li> Office of Inspector General (NASA OIG) </Li> </Ul> </Li> <Li> Office of Personnel Management (OPM) <Ul> <Li> Office of Inspector General (OPM OIG) </Li> <Li> Federal Investigative Services Division (FIS) / National Background Investigations Bureau (NBIB) </Li> <Li> Facilities, Security, and Emergency Management </Li> </Ul> </Li> <Li> United States Postal Service (USPS), United States Postal Inspection Service (USPIS), U.S. Postal Police <Ul> <Li> United States Postal Service Office of the Inspector General </Li> </Ul> </Li> <Li> Smithsonian Institution (SI) <Ul> <Li> Office of Protection Services </Li> <Li> National Zoological Park Police (NZPP) </Li> <Li> Office of the Inspector General (OIG) </Li> </Ul> </Li> <Li> Amtrak <Ul> <Li> Amtrak Office of Inspector General </Li> <Li> Amtrak Office of Security Strategy and Special Operations (OSSSO) </Li> <Li> Amtrak Police </Li> </Ul> </Li> <Li> Federal Reserve System <Ul> <Li> Federal Reserve Police </Li> <Li> Federal Reserve Board Police (Board of Governors) </Li> <Li> Office of Inspector General (FRB / CFPB OIG) </Li> </Ul> </Li> <Li> Tennessee Valley Authority, Tennessee Valley Authority Police (TVAP) <Ul> <Li> Office of Inspector General (TVA OIG) </Li> </Ul> </Li> <Li> Nuclear Regulatory Commission (NRC) <Ul> <Li> Office of Inspector General (NRC OIG) </Li> </Ul> </Li> <Li> National Science Foundation (NSF) <Ul> <Li> Office of the Inspector General (NSF OIG) </Li> </Ul> </Li> <Li> National Archives and Records Administration (NARA) <Ul> <Li> Office of the Inspector General (NARA OIG) </Li> </Ul> </Li> <Li> Railroad Retirement Board (RRB) <Ul> <Li> Office of Inspector General (RRB OIG) </Li> </Ul> </Li> <Li> Small Business Administration (SBA) <Ul> <Li> Office of Inspector General (SBA OIG) </Li> </Ul> </Li> <Li> Federal Deposit Insurance Corporation (FDIC) <Ul> <Li> Office of Inspector General (FDIC OIG) </Li> </Ul> </Li> <Li> General Services Administration (GSA) <Ul> <Li> Office of Inspector General (GSA OIG) </Li> </Ul> </Li> <Li> Social Security Administration (SSA) <Ul> <Li> Office of Inspector General (SSA OIG) </Li> </Ul> </Li> <Li> United States Agency for International Development <Ul> <Li> Office of Inspector General (AID OIG) </Li> </Ul> </Li> <Li> Corporation for National and Community Service (CNCS) <Ul> <Li> Office of the Inspector General (CNCS OIG) </Li> </Ul> </Li> </Ul>

Which level of government has the responsibility to maintain law and order