Talk:POSTNET

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The PDF link below is a page from the Domestic Mail Manual. Currently (12/2005) the barcoding standards page is available at http://pe.usps.com/cpim/ftp/manuals/dmm300/708.pdf and I added that to the article as a reference. I also added a couple of notes on the bar count of the various codes and a clarification on including the delivery point when doing the checksum.


Hi. I found this page which has a link to the POSTNET specification (and something called PLANET, which is another kind of coding, I think). Its a USPS standard, but the link isn't a USPS page:

  http://www.triskelion-ltd.com/po-c840.pdf

you might want to put that on your page also. That page also says you can encode longer local delivery codes (not just zip and zip+4)

  1. smellycat

I (a few edits ago) changed the lower-half bar into Unicode using box drawing techniques. This works in any Unicode-capable browser. Xoder| 16:13, May 3, 2004 (UTC)

Since Internet Explorer does not support those characters (and it unfortunately remains the most common browser), I switched it to a different format using <big> and <small> commands on the | character. It looks okay on all but the Chick skin (in the my preferences section). Rossami (talk) 21:38, 4 April 2006 (UTC)

Hello, I added some information on Postnet barcode formats used since the mid-1980s by USPS. I'll try to come back and add some more, having been involved with USPS automated mail processing since 1988 I think I have something to add. Eric S

[edit] unsigned comment moved from the article page

note to potential contributors: it would be interesting to know why the post office adopted this bar code standard instead of any of the other more common bar code systems?