Which mail is classified as Nonmachinable mail?

• A. Pieces that cannot be processed by automated equipment due to size, shape, or thickness.
• B. Letters that fit into automated mailers.
• C. Any mail that is heavier than 1 pound.
• D. Mail addressed to government agencies.

Answer: (A)

Nonmachinable mail consists of pieces that cannot be fed through USPS automated sorting equipment because of their size, shape, or thickness. The machines are designed for standard rectangular mail, so items that are odd-shaped (like squares or triangles), unusually thick or thin, or otherwise not compatible with the feeder and reader processes require manual handling. That’s why the description emphasizing inability to be processed by automated equipment due to size, shape, or thickness is the best fit.

Other statements miss the defining factor: whether the item can be processed by automation. A piece that fits automated mailers is machinable; weight alone (over a pound) isn’t a universal indicator of nonmachinability, and being addressed to a government agency doesn’t determine machinability.