To designate the facility of the United States Postal Service located at 4230 Maine Avenue in Baldwin Park, California, as the "Atanacio Haro-Marin Post Office".

H.R. 625 is a federal law that officially renames the United States Post Office located at 4230 Maine Avenue in Baldwin Park, California, as the "Atanacio Haro-Marin Post Office." The bill honors Atanacio Haro-Marin, a local Army corporal who was killed in action while serving in Iraq in 2003. For citizens, this change primarily affects the building's official designation and signage, while mail delivery services and zip codes for the area remain unchanged.