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Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
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Do you have to put a ZIP code on a letter?
A letter without a ZIP code may not reach its intended destination. That is because of the way addresses are read by automated postal systems. Processing machines read addresses from the bottom up. The first line the machine sees has a ZIP code, city and state.
Are ZIP codes necessary?
The Zip Code System is No Longer Strictly Necessary. The ZIP code system was first introduced because the Postal Service was beginning to be overwhelmed with the volume of mail they needed to process in a timely manner, most of which originally were processed by hand.
Are ZIP codes mandatory?
On July 1, 1963, the USPS introduced the ZIP code (Zone Improvement Plan) system. In 1967, ZIP codes became mandatory on all mail. The fourth and fifth digits represent more specific areas, like post offices and postal delivery zones within a city or town.
What happens if you mail something without a zip code?
A letter without a ZIP code may not reach its intended destination. That is because of the way addresses are read by automated postal systems. Processing machines read addresses from the bottom up. The first line the machine sees has a ZIP code, city and state.
Are ZIP codes unique to cities?
Zip codes are not locked to cities or states. Some zip codes actually cover two different cities in separate states so both city and state are still required to make it deliverable. Zip codes are a sorting assistance tool not a replacement for other parts of an address.
What is the importance of ZIP code?
The term ZIP is an acronym for Zone Improvement Plan. It was chosen to suggest that the mail travels more efficiently and quickly (zipping along) when senders use the code in the postal address.
What happens if you don't put a ZIP code on a letter?
A letter without a ZIP code may not reach its intended destination. That is because of the way addresses are read by automated postal systems. Processing machines read addresses from the bottom up. The first line the machine sees has a ZIP code, city and state.
What does a ZIP code tell you?
The “ZIP” in ZIP Code stands for “Zone Improvement Plan”. A ZIP Code indicates the destination post office or delivery area to which a letter will be sent for final sorting for delivery.
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