March 9, 2024 is U.S. Hostage and Wrongful Detainee Day. President Biden proclaimed this day to observe with relevant programs, ceremonies and activies as a reminder of Americans being wrongfully kept abroad and the focused effort to bring them home. Congress, by Public law 118-31 on December 22, 2023, approved the designation of March 9 each year to be "U.S. Hostage and Wrongful Detainee Day".
United States Code S.769 states this flag is to be flown: March 9, June 14, July 4, any day a citizen of lawful permanent resident of the US returns to the US or dies while being held hostage or wrongfully detained abroad. This is specific to the Capital, White House and the official offices of the Secretary of State and Secretary of Defense. (https://www.congress.gov/bill/118th-congress/senate-bill/769/text)
200 denier duPont Nylon Made in America.