USPS (United States Postal Service)
CASS (Coding Accuracy Support System)
Certification for software that verifies, standardizes and adds postal info to addresses.
Adds information (ZIP+4, DPBC, Carrier Route) that allows for automation and other discounts.
Performs LACS (Locatable Address Conversion System) to update rural addresses to street address.
Performs SuiteLINK which updates/standardizes High Rise addresses

PAVE (Presort Accuracy, Validation, and Evaluation)
Certification for software that Presorts the addresses to achieve the best postal discount

NCOA (National Change Of Address)
Securely takes name/address information and updates change of address information. Returns information that allows elimination of unmailable records.

ZIP (Zone Improvement Plan)
ZIP Code. With the ZIP+4 and DPBC (Delivery Point Barcode) digits helps sort the mail into the carriers delivery order.

Drop Ship
Shipping the mail to a remote entry point to earn a discount from the USPS. Also useful for better delivery time.

Full Service
Mail entered electronically. The USPS is pushing an all electronic process.

A file that electronically describes a mailing. Used to communicate with the USPS or between letter shops. Required for Full Service.

USPS site where mail.dat files are posted and verified. Part of the Business Customer Gateway

Mail Owner
The organization responsible for the content and cost of a mailing.

Mail Service Provider (MSP):
The organization preparing the mail.

OEL (Optional Endorsment Line)
Used on top of an address block to help sort/tray the mail. Only required if Carrier Route rates are used.

IMB (Intelligent Mail Barcode)
Barcode used on automated letter and flat mail.

IMpb (Intelligent Mail Package Barcode)
Barcode used on parcels for Intelligent mail.

USPS term for the assignment of Mail Owner and MSP.

CRID (Customer Registration Identification)
A number assigned to a physical location that enters mail

MID (Mailer Identification)
A number assigned to a CRID used to identify mail pieces. A CRID can have multiple MID’s. A MID is used in the IMB.

STID (Service Type Identifier)
Embedded in the IMB to indicate what services are being asked for in a mailing.

First Class Statement, either electronic or paper

Standard Statement, either electronic or paper

Receipt of Mail Statement, no presort, fee required

Drop Ship Verification form


Text File
Tab Delimited: fields separated by tabs. Quotes around fields required if the data contains tabs.
Comma Delimited: fields separated by comma’s. Quotes around field required if the data contains commas. Quotes recommended for text fields.
Flat: Fields at predictable fixed positions. Requires a layout to describe the fields and positions.

Converts and organizes input data into a format optimized for workflow.

Eliminates duplicates. Match criteria can be controlled using logical parts of name and address fields.

Records that are added to mailings to check on delivery and quality.




VDP Software (Variable Data Printing)
Programs used to combine variable data with art to create print or electronic output.

Relative width between characters in a font.

Leading (rhymes with sledding)
Distance between lines of text.