FILE - Sen. Susan Collins, R-Maine, speaks in front of American flags during the Congressional Gold Medal ceremony in honor of "Rosie the Riveter", Wednesday, April 10, 2024, on Capitol Hill in ...

The US imports millions of flags every year. In 2017 alone over 10 million of the red, white, and blues were produced overseas — 99.5% of them in China, supporters of the proposal said.

The rule change, called the “All American Flag Act,” requires government-purchased flags to be produced entirely with American-made materials as well as manufactured in the U.S.