USPS - Business Mail 101 - Addressing - Checking the Accuracy of Your Address List

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	Checking the Accuracy of Your Address List

Why bother? First, because it's required by the Postal Service. Second, look at these statistics:

17% of Americans change addresses annually.
43 million people move each year.
One out of every six families move each year.

How many of these people are your customers or members?

Just because you buy or rent a list does not mean that the addresses are correct, checked, updated, or "certified." To make sure that you are getting a list with accurate addresses, ask about the National Deliverability Index (NDI) of the list. The NDI rates the percentage of addresses in a list that are deliverable. Use the NDI to target the address elements you need to get the delivery —- and postage price —- you want. For example, if you are targeting a specific 5-digit ZIP Code, look for an NDI of 100% for address element.

To qualify for:	You must verify:	By this Date:
Presorted	5-digit ZIP Code	Within 12 months of mailing
Automation	Complete addresses	Within 95 days of mailing
Carrier Route	Carrier route information	Within 90 days of mailing

The Postal Service offers many ways to check the accuracy of your list. Vendors also offer USPS-approved products and services for address list maintenance.

To claim commercial Standard Mail and First-Class Mail prices, you MUST have checked the accuracy of ZIP Codes within the timeframes listed above. When you fill out and sign your postage statement you are certifying your mailing qualifies for the prices claimed.

Your local Post Office or business mail entry staff can help you choose the best option for cleaning up your mailing list. Here are some of choices:

	Use www.usps.com to check the ZIP Codes in your list.
	Process your address list through CASS-certified software.
	Address List Correction Service. You can submit a printout of your list to the Postal Service and we will mark any changes. There is a fee for this service. It is available through your Address Management System Office.
	NCOA^Link. A licensed vendor will run your mailing list through special software that updates addresses for your customers who have filed a change-of-address with the Post Office. The advantage to using NCOA^Link is that you clean up your list BEFORE you mail. You also know in advance how much it’s going to cost you (because a vendor charges by the address). With an ancillary service endorsement you get the same result (a corrected address) AFTER you mail, and you don't know how much you'll pay in fees until AFTER the corrections come back.
	Address Information System (AIS) Viewer. An interactive CD-ROM designed to provide the ability to retrieve, view, and print accurate and current ZIP Code information for all 50 states on demand, eliminating hardcopy reports.
	Move Update is required for all mailings at commercial First-Class Mail and Standard Mail prices. A USPS-approved method must be used within 95 days of the date of mailing. NCOA^Link includes Move Update. Using NCOA^Link satisfies the Move Update requirement.