Discontinuation
POSTNET is being replaced by the Intelligent Mail barcode (also known as OneCode Solution), which combines all previous Postal Service barcodes and marking into a single barcode. The initial transition between the two barcodes includes the use of the Intelligent Mail Barcode by the USPS and requirements that it be used to receive automation discount rates. The Intelligent Mail Barcode was originally supposed to be required beginning May 2011 however the USPS postponed the requirement date, allowing mailers to continue receiving automation discount rates using the Postnet Barcode after the May 2011 deadline. As the transition between barcodes continues, regular mail that includes Postnet Barcode will still be accepted by the USPS.
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