Code of Federal Regulations Title 33. Navigation and Navigable Waters § 33.23.20 Coast Guard commission pennant

The Coast Guard commission pennant shall have the union part composed of thirteen blue stars in a horizontal line on a white field, one-fourth the length of the pennant;  the remaining three-fourths shall consist of sixteen vertical stripes of equal width, alternate red and white, beginning with the red, and a tail piece of red about one-fifth the entire length of the pennant, ending in a swallow tail.