I have a reference request I'm having difficulty researching: the patron needs to locate and verify the zip codes of both Federal HUB and Empowerment Zones. I checked the U.S. Small Business Administration's HUBZone and the City of Detroit's Open Data Portal. However, I have not been able to locate and identify this information. If you have any ideas, tips, or suggestions, please let me know. Chris Christopher T. Bloodworth Librarian II - Adult Services Social Science, Education, Religion (SSER) Detroit Public Library 5201 Woodward Avenue Detroit, MI 48202 (313) 481-1404 cbloodworth@detroitpubliclibrary.org