The licensee must immediately notify the licensing post office and manufacturer's representative of any change in the licensee's name, address, telephone number, or the location of meters. The licensee must report misregistering or otherwise defective meters to the manufacturer. In addition, the licensee must immediately report to the licensing postmaster and the manufacturer the loss or theft of any meter or the recovery of any missing meter. The value of metered postage applied to each piece in a mailing must be either the exact amount due or another amount permitted by standard. Refunds for overpayment must meet the standards in P014 .
Fluorescent ink is mandatory for metered postage on letter-size mail.
Metered postage must be printed or applied in the upper right corner of the envelope, address label, or tag. Except for prepaid reply postage, the month, day, and year must be shown in the meter stamp on all First-Class Mail and on all certified, COD, insured, registered, special delivery, and special handling mail, whether the stamp is printed on the mailpiece or on a separate tape. The day may be omitted. Express Mail may be mailed at an Express Mail acceptance facility under the jurisdiction of another post office if acceptance facilities are not available locally. Only This guide is and overview only.