[gbunch]

The use of PO Box 34567 for Ashland Chemical was previously noted on this thread, and dates from 1991.

I looked it up on the USPS zip code finder page, and PO Box 34567 does NOT exist today. The address standardized to PO Box 24567, zip code 77229.

Strange indeed...

[jdege]

There are links to other docs in this thread that have official letterhead for the unit, and they show the 34567 PO Box.

I guess they just wanted something easy to remember.