Delivery Point Barcode Standards Flashcards
7 cards from real CASS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Delivery Point Barcode Standards flashcards as text
How many bars make up a complete POSTNET Delivery Point Barcode (DPBC)?
Answer: 62 bars
A full POSTNET DPBC contains 62 bars: a framing bar on each end plus 60 bars encoding the ZIP+4 and delivery point digits.
In POSTNET coding, each digit is represented by a combination of how many tall and short bars?
Answer: 2 tall, 3 short
Each POSTNET digit is encoded with exactly 5 bars: 2 full-height (tall) bars and 3 half-height (short) bars.
What is the purpose of the check digit at the end of a POSTNET Delivery Point Barcode?
Answer: It ensures the sum of all digits is a multiple of 10
The POSTNET check digit is chosen so that the sum of all encoded digits (including the check digit) equals a multiple of 10.
Which USPS barcode replaced POSTNET as the preferred standard for automation-rate mailings?
Answer: Intelligent Mail Barcode (IMb)
The Intelligent Mail Barcode (IMb) replaced POSTNET and PLANET barcodes as the USPS standard for automation mail beginning in 2013.
What delivery point digits are typically appended to the ZIP+4 in a POSTNET DPBC for a PO Box?
Answer: The PO Box number's last 2 digits
For PO Boxes, the delivery point is derived from the last two digits of the PO Box number.
Under USPS standards, what is the minimum bar height for a POSTNET barcode full bar printed on a mail piece?
Answer: 0.125 inches
USPS standards require POSTNET full-height bars to be a minimum of 0.125 inches tall.
What happens to a POSTNET barcode's automation eligibility if a bar is missing or unreadable by USPS scanning equipment?
Answer: The piece loses automation rate eligibility and may be handled manually
A barcode with missing or unreadable bars fails machine scanning and the mail piece loses automation rate eligibility, incurring additional handling costs.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- postalpro.usps.com — Test delivery, eligibility, exam format, renewal, score validity, passing score, score release · verified Oct 2026
- pe.usps.com — Fees · verified Oct 2026