CASS Delivery Point Barcode Standards 3 — Questions and Answers
Question 1: The Intelligent Mail Barcode (IMb) uses how many bars in total?
- 52
- 62
- 65 (Correct answer)
- 72
Correct answer: 65
The IMb consists of exactly 65 bars, each of which can be one of four heights (tracker, descender, full, ascender).
Question 2: Which field in the Intelligent Mail Barcode encodes the same routing data previously carried by POSTNET?
- Barcode Identifier field
- Service Type Identifier field
- Routing Code field (Correct answer)
- Mailer Identifier field
Correct 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.
Question 3: For a standard street address at 450 Main St, what two digits form the POSTNET delivery point?
- 45
- 50 (Correct answer)
- 04
- 00
Correct 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.
Question 4: What is the minimum clear zone (quiet zone) required before and after a POSTNET barcode on a mail piece?
- 0.025 inches (Correct answer)
- 0.040 inches
- 0.125 inches
- 0.250 inches
Correct answer: 0.025 inches
USPS standards require a minimum clear (quiet) zone of 0.025 inches on each end of a POSTNET barcode.
Question 5: In the context of CASS certification, 'DPC' stands for what?
- Delivery Point Confirmation
- Delivery Point Code (Correct answer)
- Direct Postal Carrier
- Domestic Package Classification
Correct 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.
Question 6: Which USPS publication defines the technical specifications for the Delivery Point Barcode?
- Publication 28 (Postal Addressing Standards)
- Publication 25 (Designing Letter Mail)
- Domestic Mail Manual (DMM) Section 708 (Correct answer)
- Publication 101 (Bulk Mail Preparation)
Correct answer: Domestic Mail Manual (DMM) Section 708
DMM Section 708 contains the technical requirements for barcodes, including the Delivery Point Barcode specifications.
Question 7: What is the maximum allowable bar pitch (center-to-center bar spacing) for a POSTNET barcode per USPS standards?
- 0.0265 inches (Correct answer)
- 0.0385 inches
- 0.0500 inches
- 0.0625 inches
Correct answer: 0.0265 inches
The nominal bar pitch for POSTNET is 0.0265 inches center-to-center, with tight tolerances to ensure reliable scanning.
CASS Delivery Point Barcode Standards 3
The Intelligent Mail Barcode (IMb) uses how many bars in total?