MAILING SERVICES — GIVING POSTAGE ITS DUE

Similar technology is already in use by other countries, including Canada. The USPS has reportedly been conducting tests with live mail as a final step toward nationwide implementation.

One potential concern that has been raised is whether greater imaging precision will be required to ensure that this barcode is accurately read during high-speed processing. Initially, switching to the four-state barcode will be voluntary, but strongly encouraged. Full implementation could take years.
Learning the Lingo