Ancillary Service (endorsement line)
Wording applied to the mail piece requesting new addresses and how the mail should be handled by the USPS. You must have a return address on the mail piece when using an ancillary service. The type must be 8 point or larger & must stand out clearly against the background. There is a fee and you should check with the Mail Information Center.
Mail that can be scanned and sorted by automated mail processing equipment.
A series of vertical bars and half bars representing the zip code information for the delivery address on a piece of mail. At the current time the USPS recognizes an IMB (Intelligent Mail Barcode) for all discounts
CASS (Coding Accuracy Support System)
A software program that verifies the accuracy of an address and supplies the +4 digits to an accurate zip code.
Direct Impression Addressing
Addressing and applying a bar code directly onto a mail piece.
Flat size mail exceeds at least one of the following dimensions: 11-1/2″ long, 6-1/8″ high, 1/4″ thick.
A printed designation on a mail piece that indicates postage payment.
A letter, card, or other item placed in an envelope.
Letter Size Mail
A mail piece that is no larger than 11-1/2″ long, 6-1/8″ high and its thickness does not exceed 1/4″.
Machinable Envelope & Insert
An envelope and insert(s) that are able to be put on an inserting machine rather than being handled by hand. Insert piece needs a minimum of 1/4″ clearance of envelope, a 1/2″ is totally in spec for machines. Remember: the more inserts the more clearance needed. Machinable materials save both time and money.
Machinable Mail Piece
The suitability of a mail piece for sorting by mail processing equipment at the USPS.
Minimum Size of Any Mail
5″ long, 3-1/2″ high, .007 thick.
Organizations that qualify for non-profit rates receive a postage rate that is less than standard mail. Non-profit mail is subject to inspection. Non-profit mail has very specific rules as to what can be mailed at non-profit rates – check first with your mailing house or the Mail Information Center.
Postcard Size Mail
Maximum size of the mail piece is 6″ long, 4-1/4 high, at least .007 thick.
The process by which a mailer prepares mail by sorting it to the finest extent required for a specific postage rate.
A mail piece that is self-contained and does not require an envelope.
A mail piece that is not mailed as First-Class and weighs less than 16 oz. Formerly called Bulk Mail or Third Class mail.
Tab (Wafer Seal)
A circular or rectangular item usually about 1/2 to 1″ in size used to close a self-mailer.
United States Postal Service.