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Bar Codes5–98
POSTNET
The POSTNET bar code structure is illustrated in Figure 5–24 and
Figure 5–25 and described on the following pages. The POSTNET code can
be a part of the address block and appear anywhere within a vertical 4–inch
area across the length of the mailpiece.
Return
Address Area
Postage
Area
1/2”1/2”
BAR CODE DATA FIELD
START STOP
CLEAR ZONE
CODE CODE
SR, SC
POSITION
CLEAR ZONE
CHECK DIGIT
NOTE: Illustration is not to scale
CLEAR
ZONE
CLEAR
ZONE
ADDRESS BLOCK BAR CODE READ AREA
4”
Figure 5–24. POSTNET Structure
NOTE: Additional information regarding POSTNET bar code requirements
can be obtained from the U.S. Postal Service’s Publication 25: A
Guide to Business Mail Preparation.