From the USPS website:
More Than 45 Million Americans Change Their Addresses Each Year
Many of them are good customers of yours — customers you value and who are important enough for you to communicate with through the mail. However, not all of them have told you that they have moved.
If you want to keep these customers, you need to make sure your mail reaches them. That is why it is good business to update your address lists now.
The Postal Service
® is committed to increasing customer value. That is one of the key goals of our Vision 2013 Plan. We do that by working with customers like you to update databases frequently and accurately so addresses are correct. But that’s not all. By analyzing your business processes, we can identify ways to improve those processes. That is where Move Update comes in; it is one of many ways to help you reach your customers efficiently and cost-effectively.Updating Reduces Waste
Every mailpiece, regardless of class, has two critical pieces of information — the intended recipient and the recipient’s address. When both are accurate and complete, the Postal Service can deliver the mail quickly and easily.
If the address is incorrect or missing an element or the recipient has moved, the mailpiece could become undeliverable-as-addressed (UAA) mail. Such mail causes loss of time, effort and money for the Postal Service — and you — the mailer.
This publication describes four primary and two alternative Move Update methods for updating your mailing list and answers commonly asked questions.
Move Update
Mailers who plan to claim discounted First-Class Mail
® and Standard Mail® prices must meet the Move Update standard for updating addresses.Effective November 2008, the Postal Service required all addresses on mailings that receive discounts for First-Class Mail
® or Standard Mail® service, whether presorted or automation (or carrier route, for Standard Mail), to undergo address correction within 95 days of the mailing. The Postal Service offers mailers four primary and two alternative Move Update methods. Mailers can meet the Move Update standard in the following ways:Primary Move Update Methods:
1. Ancillary Service Endorsement
2. OneCode ACS
®/ACS™3. NCOA
Link®4.
FASTforward®Alternative Move Update Methods:
1. Legal Restraint
2. 99 Percent Accurate
Note:
Alternative Move Update methods apply to First-Class Mail only.A mailer wishing to enter mail at a discounted price must certify, on the postage statement submitted, that the address on each mailpiece have been updated within the previous 95 days.