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How to allow bundles under 10 pieces for a Flats mailing in MailStream Plus

Does the USPS allow bundles under 10 pieces for a Flats mailing in MailStream Plus?

ML TYP 3 L
P ATTR – Thickness of 100 pieces = 60.90
 
Yes.  The rule is you need at least 10 pieces total to attempt to bundle.  But if you have large pieces then it may take more than 1 bundle to present these pieces.  Here is the DMM reference with the definition of a Logical Bundle to explain this –
 
DMM 245.1.4.w
1.4 Preparation Definitions and Instructions

w. A “logical” presort destination represents the total number of pieces that are eligible for a specific presort level based on the required sortation, but which might not be contained in a single bundle or in a single container (sack or pallet) due to applicable preparation requirements or the size of the individual pieces. For example, there may be 42 mailpieces for ZIP Code 43112 forming a Standard Mail “logical” 5-digit bundle, and they are prepared in three physical 5-digit bundles because of the applicable weight and height restrictions on bundles. …




 
UPDATED:  August 7, 2017