Regardless of weight, (I WAS TOLD 1oz - 3.5ozs.) a letter-size piece is considered nonmachinable and would be subject to the 17-cent nonmachinable surcharge if it has one or more of the following characteristics:

• An aspect ratio of less than 1.3 or more than 2.5 (most prevalent on letters with the address parallel to the shorter measurement).

• Pieces which are rigid or contain odd-shaped contents such as loose keys, coins or tokens that cause the thickness to be uneven (nonuniform).

• Measures more than 4¼ inches high, or 6 inches long, and thickness is less than 0.009 inch.

• Is polybagged, polywrapped or enclosed in any plastic material.

• Clasps, strings, buttons or similar closure devices.

• Self-mailer with a folded edge perpendicular to the address not folded and secured (e.g., tabbed).

• Booklet with the bound edge (spine) along the top of the piece (length) or along the shorter dimension not secured (tabbed).

I REST MY CASE!!!