Quarantine with a disinfecting stove, have a right to navigate the Canal, in quarantine, subject only to the landing of those who were suffering from plague. Plain yellow, green, and even black flags have been used to symbolize disease in both ships and ports, with the color yellow having a longer historical precedent, as a color of marking for houses of infection, previous to its use as a maritime marking color for disease. The present flag used for the purpose is the "Lima" (L) flag, which is a mixture of yellow and black flags previously used. It is sometimes called the
National League of Families POW/MIA Flag single flagpole, the POW/MIA flag should fly directly below, and be no larger than, the United States flag (Civilian or on congressionally designated days). For U.S. government agencies under a Chain of Command the U.S. Flag Code has a complete order of precedence that mirrors Army Regulations 840-10 specifically 840-10 2-2.c. If on separate poles, the U.S. flag should always be placed to the right of other flags (the viewer's left; the flag's own right). On the six national observances for which Congress has ordered display of the POW/MIA flag, it is generally flown immediately below or adjacent to the