警備艦
The USCGC "Bibb" (WPG-31) was a Secretary-Class (also known as "Treasury Class") Coast Guard ship commissioned in 1936. Seven similar "combat cutters" were built and named for secretaries of the United States Treasury. "Bibb" was named for U.S. Secretary of the Treasury (July 4, 1844 – March 7, 1845) George M. Bibb.