Do I Need to Write Non Machinable on Envelope?
If Any of Those Criteria Are Not Met, Your Envelope Is “Non-Machinable” — Meaning It Cannot Be Processed by a Usps Machine — and You Should Add Extra Postage...
If any of those criteria are not met, your envelope is “non-machinable” — meaning it cannot be processed by a USPS machine — and you should add extra postage. ... Nelson's site not only explains current US postal rates, but also helps you to figure out what “standard sizes” of envelopes actually are.
Can I write non-machinable on envelope?
Examples of a non-machinable letter:
A letter that has an aspect ratio (length divided by height) of less than 1⅓ or more than 2½ (a square envelope has an aspect ratio of 1, making it non-machinable). A letter that is more than 4¼ inches high or 6 inches long and is less than 0.009 inch thick.
What makes a letter Non-machinable?
Examples of a nonmachinable letter include: It has an aspect ratio (length divided by height) of less than 1.3 or more than 2.5 (a square envelope has an aspect ratio of 1, making it nonmachinable). It is more than 4-1/4 inches high or more than 6 inches long and is less than 0.009 inch thick.
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