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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

  1. The Intelligent Mail Barcode (IMb) uses how many bars in total?

    Answer: 65

    The IMb consists of exactly 65 bars, each of which can be one of four heights (tracker, descender, full, ascender).

  2. Which field in the Intelligent Mail Barcode encodes the same routing data previously carried by POSTNET?

    Answer: Routing Code field

    The Routing Code field within the IMb carries the ZIP, ZIP+4, and delivery point digits that POSTNET barcodes previously encoded.

  3. For a standard street address at 450 Main St, what two digits form the POSTNET delivery point?

    Answer: 50

    The delivery point for a street address is the last two digits of the primary address number, so 450 yields delivery point 50.

  4. What is the minimum clear zone (quiet zone) required before and after a POSTNET barcode on a mail piece?

    Answer: 0.025 inches

    USPS standards require a minimum clear (quiet) zone of 0.025 inches on each end of a POSTNET barcode.

  5. In the context of CASS certification, 'DPC' stands for what?

    Answer: Delivery Point Code

    DPC stands for Delivery Point Code, the two-digit value appended to a ZIP+4 to form the full delivery point used in DPBC encoding.

  6. Which USPS publication defines the technical specifications for the Delivery Point Barcode?

    Answer: Domestic Mail Manual (DMM) Section 708

    DMM Section 708 contains the technical requirements for barcodes, including the Delivery Point Barcode specifications.

  7. What is the maximum allowable bar pitch (center-to-center bar spacing) for a POSTNET barcode per USPS standards?

    Answer: 0.0265 inches

    The nominal bar pitch for POSTNET is 0.0265 inches center-to-center, with tight tolerances to ensure reliable scanning.

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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

  1. postalpro.usps.com — Test delivery, eligibility, exam format, renewal, score validity, passing score, score release · verified Oct 2026
  2. pe.usps.com — Fees · verified Oct 2026