NOW

USPS Address Information System Products Guide Released

The Address Information System (AIS) Products Technical Guide is a consolidated user guide containing documentation on all AIS products, including:

— Carrier Route Product
— City/State Product
— Delivery Statistics Product
— eLOT® Product
— Five-Digit ZIP Product
— Z4CHANGE Product
— ZIP+4® Product
— ZIPMove Product

All AIS products are comprised of raw data files in ASCII fixed-length text. To be manipulated or accessed, these files require use of an application program … (click to download)