This form contains a green and white sticker that includes a barcode, which will allow you to track your mail through the USPS. The form also contains a perforated receipt, which serves as proof that you mailed the item. Write all of the required information on the form, including the recipient’s name and address.

Make sure to leave room on the top right portion of the envelope to apply correct postage. On a package, the sticker can be placed to the left of the address area.

Both first-class and priority mail can be sent via certified mail. First-class mail includes envelopes and packages that weigh 13 ounces or less. Priority mail service offers delivery in a timely and expedited fashion, generally within two to three days.

Restricted delivery service guarantees that a specified person receives and signs for the certified mail. If you select this option, you need to endorse, or initial, the column on the certified mail form that is marked for this service.

You can choose to obtain this receipt via e-mail, with a PDF image of the signature included, or as a physical receipt via snail mail. As with the restricted delivery service, you need to initial the column on the certified mail form marked for this service.

Keep all documentation for the mailing in a safe place.

Look at the price for sending Certified Mail. Decide if the price is worth what you will pay for the service. Make sure that the service offers next-day USPS tracking for your letter. Check to see that the service provides proof of mailing and USPS proof of delivery.

Write a letter in your word processing program. Print and sign it if needed. Alternatively, use a form provided by the recipient. Again, print the form and sign it as needed.