A receipt is issued for registered mail when it is accepted. For individual transactions PS Form 3806 Receipt for Registered Mail is used. When an average of three or more items are presented for registration at one time PS Form 3877 Firm Mailing Book for Accountable Mail may be used (see DMM 503). The registered number is determined by Label 200 Registered Mail a preprinted self–adhesive label with a number series of nine digits preceded by a Service Type Code of two alpha characters and followed by the Country Code of two alpha characters “US.” Only labels printed by the Postal Service may be used on international registered mail.
Verify that the value declared on PS Form 3806 and the value declared on PS Form 2976 are identical. Refuse items on which the declared values are not the same.
Affix Label 200, Registered Mail, to the item on the address side — in the upper left, below the return address — and enter the number in ink on the mailing receipt.
Senders must securely seal all items presented for registration. Wax or paper seals on envelopes must bear a distinctive mark of the sender and must be affixed in such a way as to allow sufficient space at the intersections of the flaps for postmarking. Self–sealing envelopes and items that appear to have been opened and resealed may not be registered.