Following traditional American vexillology, these usually consist of the agency's departmental seal on a blank opaque background, but not always.
The flags of the U.S. states, territories, and federal district exhibit a variety of regional influences and local histories, as well as different styles and design principles.
Nonetheless, the majority of the states' flags share the same design pattern consisting of the state seal superimposed on a monochrome background, commonly every different shade of blue, which remains a source of criticism from vexillologists.
While the countries mentioned are recognized independent nations with United Nations seats, the United States maintains and exercises jurisdictional control over the countries in defense, security, and funding grants.
–1970)Commissioning pennant of the United States Coast and Geodetic Survey for Class II, III, and IV vessels ( ?