This bill designates the U.S. Postal Service facility located at 765 West Old Route 66 in Ash Fork, Arizona, as the "Fayrene Hume Post Office Building." The designation honors Fayrene Hume by naming the postal facility after her. The bill requires that all federal references to this facility, including in laws, maps, regulations, and official documents, use the new name. No funding or implementation timeline is specified in the legislation, as naming designations are administrative changes that do not require appropriations.