Machine Readability


This is our technical section which is only specific to those customers who have chosen the machine-readable options for letters and large letters.

The user guide chapter details all the mandatory requirements for postings where customers have chosen to present items with no sorting or where the Low Sort option is preferred.

For new customers who have chosen the machine-readable options, the supporting tools and documents provide details on the Quality Assurance Process (including process maps, test data and application forms). Included is a regularly updated list of accredited envelope manufacturers, printers and mailing houses who can produce machine-readable mail pieces.

If you are using one of our templates to help check that your mail pieces visually meet specification, the instructions on how to use them are also available to download.

Quality Assurance Process

Quality Assurance Process

Quality Assurance Process

J Tool Instructions

J Tool Instructions

A guide on the visual checks for the machineable-readable options.

QA Approved List

QA Approved List

QA Approved Envelope Manufacturers, Printers and Mailing Houses List

Stamp Indicia

Retail Stamp Indicia

Find details of the Retail Stamp Indicia.


J Tool Images

J Tool Images

Example of J Tool images for OCR option.