'
The USPS is using an OCR system that 1) determines the nine-digit zip, and 2) prints a barcode.
You will see that barcode on a self-adhesive strip on flats, and you will see it printed directly onto most letter-size mail.
There is no need for anyone to tell anyone their nine-digit zip and, if the mail is legibly addressed, there is no need to use one in an address.
Cheers,
/s/ ikeyPikey (who always looks-up a recipient's nine-digit zip and includes it in the address, but does not know why he bothers)
There is actually now a zip + 4 + 2 for an 11 digit code.
ikeyPikey
Are you sure that
"The USPS is using an OCR system that 1) determines the nine-digit zip, and 2) prints a barcode"
The Advanced Facer-Canceller System images the letter, reads the entire typed or handwritten address on the envelope, compares the data to a known database of addresses, and sprays it with a unique ID tag barcode, which includes the 9-digit zip code. The 9-digit zip code is not required in the address on the letter. The letter then goes to the high-speed mail sorter. See the link below.
Linus
https://www.youtube.com/watch?v=WX16-52bHvg
" .... The 9-digit zip code is not required in the address on the letter. ...."
Is that expressed in a positive statement from the USPS or by a statement
simply seeking the five digits and omitting reference to the added numbers
being used by the sender ?.
"So I wonder if the full nine digits are at least technically
required or not."
A few years back, the Postal Service invented a nifty way
of speeding up the mail delivery system. And very probably
improved the overall accuracy as well.
Anyway, perhaps some clever devil did the inventing, but
the "ZIPCODE" system was inaugurated some time ago and we
were all encouraged or required to use, first the five
number "area" codes and then all nine digits that in many
cases brought the mail to the right door possibly faster
than the older, "Brooklyn 2" or "Bronx 3" system did.
Almost forty years after Zip +four was implemented I have
noticed that even for SoR members many simply do not bother
adding the last four numbers. One day I had a discussion
with a mail person who said that they could return an
envelope for correction.
So I wonder if the full nine digits are at least technically
required or not.
Also I think it would be nice if members who have not provided
all nine digits would do so rather than having your friends
or customers have to take the time to look things up before
the USPS finally closes up shop and mail service becomes a
subsidiary of UPS or Amazon..
re: Nine diget Zip Code
'
The USPS is using an OCR system that 1) determines the nine-digit zip, and 2) prints a barcode.
You will see that barcode on a self-adhesive strip on flats, and you will see it printed directly onto most letter-size mail.
There is no need for anyone to tell anyone their nine-digit zip and, if the mail is legibly addressed, there is no need to use one in an address.
Cheers,
/s/ ikeyPikey (who always looks-up a recipient's nine-digit zip and includes it in the address, but does not know why he bothers)
re: Nine diget Zip Code
There is actually now a zip + 4 + 2 for an 11 digit code.
re: Nine diget Zip Code
ikeyPikey
Are you sure that
"The USPS is using an OCR system that 1) determines the nine-digit zip, and 2) prints a barcode"
re: Nine diget Zip Code
The Advanced Facer-Canceller System images the letter, reads the entire typed or handwritten address on the envelope, compares the data to a known database of addresses, and sprays it with a unique ID tag barcode, which includes the 9-digit zip code. The 9-digit zip code is not required in the address on the letter. The letter then goes to the high-speed mail sorter. See the link below.
Linus
https://www.youtube.com/watch?v=WX16-52bHvg
re: Nine diget Zip Code
" .... The 9-digit zip code is not required in the address on the letter. ...."
Is that expressed in a positive statement from the USPS or by a statement
simply seeking the five digits and omitting reference to the added numbers
being used by the sender ?.
re: Nine diget Zip Code
"So I wonder if the full nine digits are at least technically
required or not."