Prepare the letter or document you want to send
Place it in an envelope and seal it
Address the envelope clearly and correctly
Go to a post office or use the postal service’s online mailing option if available
Request Certified Mail service
Request Return Receipt service
Choose whether you want a physical green card or electronic return receipt, if offered
Pay the required postage and service fees
Keep the mailing receipt and tracking number
Send the item through the postal service
Track the delivery using the tracking number
Save the signed return receipt when it is returned to you