## Writing and Sending the Letter Use plain paper and a standard business-letter format. Address the letter to “USPS Customer Care” or “Postmaster” followed by the official mailing address obtained from usps.com. In the body, state that you are requesting a replacement invitation code for the address listed. Print or type the letter, sign it in ink, and place it in a stamped envelope. Certified mail with return receipt provides proof of delivery if you need documentation later. Retain a photocopy of the signed letter and the mailing receipt. ## Locating the Correct Mailing Address The most direct source for current USPS mailing addresses is the official website under the Contact Us or Customer Service sections. Local post offices can also supply the appropriate address for invitation-code requests. Avoid third-party directories, as they may list outdated information. If the website is inaccessible, call the general USPS inquiry line listed on any recent postal notice and ask for the customer-care mailing address related to invitation codes. ## What to Expect After Mailing Processing and delivery times vary by location and mail volume. Once approved, the replacement code arrives in a new letter at the address provided. Inspect the envelope promptly and enter the code on the secure USPS registration page as soon as it is received. If no letter appears after a reasonable interval, resubmit the request or use an alternative contact method. ## Alternative Request Options Although a mailed letter fulfills the requirement for a paper-based request, many users obtain a replacement more quickly by initiating the process through the official USPS online portal. The portal generates a new code that is still delivered by mail. Visiting a local post office in person and speaking with a retail associate is another reliable option; staff can verify eligibility and submit the request on your behalf. Phone support can also guide you to the correct procedure when written instructions are unclear.
## Tips for a Successful Request Double-check the address on both the letter and the envelope for accuracy. Use legible handwriting or a clear font. Avoid sending the request during peak holiday mailing periods when processing may slow. If multiple household members need codes, submit separate letters for each eligible adult. Keep records of every communication until the new code is successfully used.
