What is an IMB?

An IMB is an Intelligent Mail Barcode. It’s a 65-bar barcode for use on mail in the United States. It effectively incorporates the routing ZIP code and tracking information included in previously used postal barcode standards.

What is Delivery Confirmation?

Delivery Confirmation is an additional tracking service provided by the United States Postal Service that enables you to see movement of your mail piece through the U.S. Postal stream. The USPS assigns a special MID Mailer Identifier (MID) to be used on the IMB which uploads the mail status to a web portal to be viewed.

Why is my tracking unavailable?

It typically takes the USPS 1-2 business days (including Saturdays) to upload tracking information on mail pieces using IMB Tracking.

What is a BRC or BRE?

BRC stands for Business Reply Card, a postcard for enclosure with a mailed communication bearing indicia stating that postage for its use in making reply will be paid by the one requesting the reply. BRE stands for Business Reply Envelope, an envelope bearing indicia like those on a business reply.

How many wafer seals do you need on a self-mailer?

The amount of wafer seals on a self-mailer depends on the size of the piece. For example, a typical self-mailer can measure either 5.5” x 8.5” or 6” x 9” in size. With a fold on the bottom and an open end on the top, two wafer seals are required. Mailers that are provided with saddle stitching require 3 wafer seals. Flat size mailers do not need any wafer seals per postal requirements.

What are postal indicia?

Postal indicia are markings used on address labels or bulk mail as a substitute for stamps. It’s used in place of a physical postage stamp and shows the USPS the permit information utilized to pay for a postcard, letter, self-mailer flat or envelope to be delivered. Generic indicia postage usage is also beneficial for businesses in that it’s more cost- effective with bulk mailings as opposed to live stamps.