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Term: NATIONAL CHANGE OF ADDRESS SYSTEM (NCOA)

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A correction service, licensed by the USPS, that matches mail file records against a database of recent movers and their forwarding address. The USPS compiles this database from change of address cards. It contains the last 18 months of movers and is updated twice each month. Private sector vendors, who meet USPS criteria, may be selected to perform this process for a fee.

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