EPF Product Contact Information

Hours of operation are Monday through Friday from 8:00am to 5:00pm Central Standard Time.

Product Support Department Phone Email ACS Product ACS Department 877-640-0724, option 1 acs@usps.gov AEC Product AEC Department 800-238-3150 cds.ncsc@usps.gov AIS Viewer Product Customer Care Department 800-238-3150, option 1 AISProducts.NCSC@usps.gov AIS Products Customer Care Department 800-238-3150, option 1 AISProducts.NCSC@usps.gov CASS - MASS CASS - MASS Department 800-642-2914 cassman.ncsc@usps.gov CDS Product CDS Department 800-238-3150 cds.ncsc@usps.gov Labeling Lists Product BMA Certification Department 800-238-3150 labellist.ncsc@usps.gov Licensed Products Licensing Department 800-589-5766 ncoalink@usps.gov National Zone Chart Product BMA Certification Department 800-238-3150 labellist.ncsc@usps.gov   EPF Website Address Quality 1-800-331-5747 devsupport.ncsc@usps.gov