What is the thickness specified in the minimum dimensions?

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Multiple Choice

What is the thickness specified in the minimum dimensions?

Minimum thickness is the smallest allowed distance between the two faces of a mailpiece that still qualifies as a letter. This boundary helps ensure the piece feeds reliably through sorting equipment and is treated as a letter. The smallest allowed thickness is seven-thousandths of an inch, or .007 inches. So the thickness specified in the minimum dimensions is .007 inches. The other values are thicker than the minimum and do not define the minimum boundary.

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