They were taken out.
This is copied from a reply by a fellow MVP:
""unless you are preparing a mailing for automation rates, you should NOT
put
barcodes on the mailpieces. As long as the mailing address is correct, your
mail will still be processed efficiently without a barcode-and
you won't need to worry about having the wrong barcode on your mail."
http://www.usps.com/businessmail101/misc/discountsBarcoded.htm
One of the links in the article says that you can't get an automation-rate
discount unless your mailing list has been verified by Coding Accuracy
Support System (CASS) software and you're sending at least 200 or 500 pieces
(depending on the mail class) at one time.
Part of the problem is that the standards for generating barcodes have
changed over the years and Word's feature has not kept up. Microsoft has a
general
article about this here::
http://support.microsoft.com/kb/897290
There's a specific article about the problem with "multi-unit buildings"
here:
http://support.microsoft.com/kb/220548
In other words, if you're using USPS barcodes for bulk mailing discounts,
you have to use a package other than Word. If you aren't, you don't need
them and probably shouldn't use them at all. "