United States Postal Service Usage
In the US Postal System, a delivery point is a specific set of digits between 00 and 99 assigned to every address. Combined with the ZIP + 4 code, the delivery point provides a unique identifier for every deliverable address served by the USPS.
The delivery point digits are almost never printed on mail in human-readable form; instead it is encoded in the POSTNET delivery point barcode (DPBC) or as part of the newer Intelligent Mail Barcode (IMB). The DPBC makes automated mail sorting possible, including ordering the mail according to how the carrier delivers it (walk sequence).
The two-digit delivery point number is combined with an additional check digit in the DPBC. This digit is used by barcode sorters (BCS) to check if the ZIP, ZIP + 4, or delivery point ZIP codes contain an error. In a database, storing the ZIP + 4 code in a 10 character field (with the hyphen) allows easy output in the address block, and storing the check digit in a 3-digit field (instead of calculating it) allows automatic checking of the validity of the ZIP+4 and delivery point fields (in case one had been changed independently). In order to receive the appropriate barcode discount, the delivery point digits and the +4 extension must be verified using an up-to-date, CASS or DPV certified program.
Since each city block or section of a rural route has a different +4 extension, and address numbers generally increase by 100 per block, the delivery point is typically the last two digits of the address. In the early days of DPBC, it was acceptable to determine the delivery point in this fashion, but since suite and other secondary designations are assigned unique delivery points—which cannot be determined without the CASS/DPV database—this is no longer possible. The delivery point is usually redundant for post office boxes, since they are typically assigned their own ZIP + 4 code, but must nonetheless be assigned a complete DPBC for full postal discounts.
Read more about this topic: Delivery Point
Famous quotes containing the words united states, united, states, postal, service and/or usage:
“In one notable instance, where the United States Army and a hundred years of persuasion failed, a highway has succeeded. The Seminole Indians surrendered to the Tamiami Trail. From the Everglades the remnants of this race emerged, soon after the trail was built, to set up their palm-thatched villages along the road and to hoist tribal flags as a lure to passing motorists.”
—For the State of Florida, U.S. public relief program (1935-1943)
“An inquiry about the attitude towards the release of so-called political prisoners. I should be very sorry to see the United States holding anyone in confinement on account of any opinion that that person might hold. It is a fundamental tenet of our institutions that people have a right to believe what they want to believe and hold such opinions as they want to hold without having to answer to anyone for their private opinion.”
—Calvin Coolidge (1872–1933)
“I think those Southern writers [William Faulkner, Carson McCullers] have analyzed very carefully the buildup in the South of a special consciousness brought about by the self- condemnation resulting from slavery, the humiliation following the War Between the States and the hope, sometimes expressed timidly, for redemption.”
—Jimmy Carter (James Earl Carter, Jr.)
“none
Thought of the others they would never meet
Or how their lives would all contain this hour.
I thought of London spread out in the sun,
Its postal districts packed like squares of wheat:”
—Philip Larkin (1922–1985)
“The general who advances without coveting fame and retreats without fearing disgrace, whose only thought is to protect his country and do good service for his sovereign, is the jewel of the kingdom.”
—Sun Tzu (6th–5th century B.C.)
“Girls who put out are tramps. Girls who don’t are ladies. This is, however, a rather archaic usage of the word. Should one of you boys happen upon a girl who doesn’t put out, do not jump to the conclusion that you have found a lady. What you have probably found is a lesbian.”
—Fran Lebowitz (b. 1951)