U.S. Government
- National Security Council
- Nuclear Regulatory Commission
- Occupational Safety and Health Administration
- parcel post
- Peace Corps
- Pledge of Allegiance
- Port Authority of New York and New Jersey
- Post roads
- Rural Electrification Administration
- Rural free delivery
- selective service
- State legislatures
- Tennessee Valley Authority
- Uncle Sam
- United States Aviation Security Screeners
- United States Chamber of Commerce
- United States Chemical Safety and Hazard Investigation Board (USCSB)
- United States Department of Agriculture
- United States Department of Commerce
- United States Department of Defense