To designate the facility of the United States Postal Service located at 306 South Main Street in Waupaca, Wisconsin, as the Master Sergeant Melvin O. Handrich Post Office Building.

HR 5831 designates the U.S. Postal Service facility at 306 South Main Street in Waupaca, Wisconsin, as the "Master Sergeant Melvin O. Handrich Post Office Building." The bill updates all official federal references - such as laws, maps, and documents - to use this new name for the building. It does not create new policies or affect services, but formally changes the facility's official designation. The bill directly impacts how the building is identified in all federal communications and records.