USPS 476 key terms

The specific location where mail is delivered, such as a mailbox, a slot, or a group of boxes at one address. It is a key unit used to sort and sequence mail for the carrier's route.

A five-digit number assigned by the Postal Service to a geographic delivery area to help sort and route mail efficiently. The first digits represent a region, and later digits narrow to a local area.

A ZIP Code extended with four extra digits that identify a smaller segment such as a city block, building, or specific delivery route. It improves sorting accuracy and can reduce processing costs.

The path a letter carrier follows to deliver mail to a set of addresses. Routes are identified by codes and are used to sequence mail in delivery order before it leaves the office.

The ordered sequence of stops a carrier follows along a route. Mail is arranged in this order so carriers can deliver without backtracking or repeatedly searching for the next address.

A process that reviews addresses the automated system cannot match and corrects them so mail can be delivered. It reduces undeliverable mail and returns corrected address data to mailers.

Reformatting an address to match Postal Service conventions, including abbreviations, capitalization, and placement of elements. Standardized addresses sort faster on automated equipment and are more likely to be delivered correctly.

Mail that cannot be delivered to the address written on it because the address is incomplete, incorrect, or the recipient has moved. Such mail is handled through return, forwarding, or other special procedures.

A request filed by a customer to have mail forwarded to a new address for a set period. Carriers and processing equipment use this information to redirect mail instead of returning it.

The process of sending mail to a customer's new address after a change of address is on file. Forwarding applies for a limited time, after which mail is returned to the sender with the new address noted.

A service in which undeliverable mail is sent back to the sender, sometimes with the reason for non-delivery or the recipient's new address. It helps mailers update their records and reach customers.

A locked box at a postal facility that a customer rents to receive mail. Box mail is sorted and placed by facility staff rather than delivered to a street address.

A service that holds mail at a post office for a customer who does not have a regular address there. It is intended for short-term use by travelers and others without other delivery options.

A service that lets a high-volume customer pick up mail at a postal facility instead of receiving delivery. Mail is held for pickup, often in numbered call windows or bins.

A plant where mail is sorted, canceled, and prepared for transportation to delivery units or other facilities. Automated equipment reads addresses and sorts mail into trays and containers by destination.

The process of arranging mail into groups by destination, route, or delivery order. Accurate sortation lets carriers and downstream facilities handle mail faster and with fewer errors.

Containers and devices used to move and store mail, such as trays, tubs, sacks, and pallets. Facilities track this equipment so it is returned and reused rather than lost.

Packing mail into trays, tubs, sacks, or pallets for movement between facilities. Proper containerization protects mail, speeds handling, and supports efficient loading and unloading.

The act of sending mail out from a facility to its next destination on a scheduled trip. Dispatch timing is critical because late mail can miss transportation and delay delivery.

The system of trucks, planes, and other carriers that move mail between facilities and delivery units. Schedules and routing are planned so mail arrives in time for processing and delivery.

A category of mail that determines how it is handled, how fast it travels, and what it costs. Examples include First-Class Mail, Marketing Mail, and Package Services.

The standard class for letters and small items, offering fast handling and delivery. It includes personal correspondence, bills, and other items that need prompt service.

A fast service for packages and envelopes, typically delivered in a few business days with tracking included. It is priced higher than standard package services and offers expedited handling.

The service window where customers buy postage, mail items, and receive help with postal products. Staff at the counter handle transactions, answer questions, and apply postal rules.

The system and location where retail transactions are recorded and payment is collected. It tracks sales, prints receipts, and supports services like postage purchase and money orders.

The fee paid to send mail or packages through the Postal Service. Postage can be paid with stamps, meters, or electronic methods and must cover the correct rate for the item.

Mail with postage printed by an approved postage meter instead of stamps. The meter prints a dated indicia showing the amount paid, and the mailer must follow rules for its use.

Printed markings on mail that show how postage was paid, such as a meter imprint or a permit imprint. It replaces a stamp and must meet format and placement requirements.

A prepaid payment instrument sold at postal counters that can be sent safely through the mail. The purchaser pays the amount plus a fee, and the recipient can cash it.

A service that provides information about when an item was delivered, and sometimes an attempt was made. It helps senders track important mail without full end-to-end tracking.

The ability to follow an item's progress through the mail stream using a number and online or counter lookups. Tracking shows scans at acceptance, processing, and delivery points.

A service that gives the sender a receipt proving the item was mailed and a record of delivery. It provides proof of mailing and delivery but does not insure the item's value.

A rule issued to carry out postal law and govern how mail, services, and facilities operate. Employees must follow these rules when handling mail and serving customers.

The official publication containing standards and rules for domestic mail services, rates, and preparation. It is a primary reference for employees answering mail-related questions.

The legal protection that keeps the contents of mail confidential and limits who may open or inspect it. Employees may handle mail only as allowed by law and postal rules.

Mail that is closed against inspection, such as most First-Class Mail letters. It may be opened only under specific legal conditions, unlike mail that is open for inspection.

A service requiring the item to be delivered only to the named addressee or an authorized agent. It adds a layer of security for sensitive mail and requires the recipient to be identified.

A service that records the signature of the person who accepts an item at delivery. It gives the sender proof that someone at the destination received the mail.

Items that can pose a risk to people, property, or the mail stream, such as flammables, corrosives, or batteries. Postal rules restrict or prohibit mailing them and require proper packaging and labeling.

A document that describes a hazardous substance's hazards, handling, and emergency measures. It helps workers respond safely to spills or exposure involving regulated materials.

The planned actions taken when an incident such as a spill, fire, or suspicious item occurs. Workers follow established procedures to protect people, secure the area, and notify authorities.

Mail that shows warning signs such as unusual odors, stains, wires, or unexpected origin. Employees should not handle it and must follow procedures to isolate it and alert authorities.

A federal law enforcement officer who investigates crimes involving the mail and protects the postal system. Inspectors also respond to threats, fraud, and hazardous or suspicious mail incidents.

A safety procedure that isolates energy sources before equipment is serviced or repaired. It prevents machines from starting unexpectedly and protects workers from serious injury.

Gear worn to reduce exposure to workplace hazards, such as gloves, safety glasses, or hearing protection. It is used along with safe work practices, not as a substitute for them.