Certify Zip Code Release For Free

One of the most common ways to validate an address is to use the USPS Address Verification tool. This tool is available on the USPS website and can be used to verify the accuracy of address information and standardize it to conform to USPS formatting rules.

The free tool is available on USPS.com, can standardize and verify address accuracy, and allows one address entry at a time. Here we'll provide step-by-step instructions. If you're more of a visual learner, check out the video below. Enter the street address, city, state, and ZIP Code in the designated fields.

It is likely that your usps.com® profile is not updated with your current address. The best way to prevent this issue is to submit an Official Change of Address online at moversguide.usps.com, in person at a Post Office?, or through your carrier.

After you submit an Official Change of Address (online at moversguide.usps.com, in-person at a Post Office?, or through your mail carrier), you will receive an email and a physical letter with a 9-digit alpha-numeric code requesting confirmation of your change of address.

How Much Does Certified Mail Service Cost USPS Postage & Special ServicesNew Rates (July 2023)Certified Mail Fee$4.35Electronic Delivery Confirmation Receipt$0.90Return Receipt Green Card (Old Fashioned Green Card)$3.55Return Receipt Electronic Signature (PDF) (replaces Green Card)$2.205 more rows

The USPS database exists to support the US mail delivery system. As such, the database does not contain every single address in the United States. Instead, the USPS keeps records on about 160 million homes and businesses while leaving out millions of addresses they just don't deliver.

If you want to find out where someone lives, you can do a few things. One way is to use public records databases such as the Social Security Administration's Death Master File or the National Property Database. You can also check voter records or look through property records.

Definition: CASS2122 address standardization is the process of standardizing addresses so that they follow the USPS® Coding Accuracy Support System (CASS2122) requirements. CASS2122 certification is based on accuracy in ZIP codes2122, ZIP +4A® codes, and delivery point codes.

Address and Print USPS Certified Mail® Labels Online! Skip the trip to the Post Office2026 Address and print USPS Certified MailA® Labels online.You'll have proof of mailing, letter tracking plus delivery confirmation for each of your compliance letters available 24/7 365 days a year.

How do I request a Proof of Delivery? You can request a Proof of Delivery for applicable mailpieces by using the USPS Tracking® Tool at USPS.comA®. Select Proof of Delivery and follow the provided directions to receive a Proof of Delivery email either with or without a delivery address.