flat — The general term for flat size mail, so called because the large mail is sorted without bending it so that the mail remains flat … Glossary of postal terms
mail processing category — One of five designations for mail (flat size mail, letter size mail, machinable parcel, outside parcel, and irregular parcel), based on physical dimensions (height, length, and thickness) and on weight … Glossary of postal terms
flat tray — A four sided tray used in both mechanized and nonmechanized offices for flat size mail. (Compare with letter tray) … Glossary of postal terms
Flat tax — A flat tax (short for flat rate tax) is a tax system with a constant tax rate. [James, Simon (1998) A Dictionary of Taxation , Edgar Elgar Publishing Limited: Northampton, MA] Usually the term flat tax would refer to household income (and… … Wikipedia
untied dispatch — Loose letter size mail or flat size mail packed in a sack, pouch, or letter tray or flat tray for direct dispatch to destinations … Glossary of postal terms
parcel — Mail that does not meet the mail processing category of letter size mail or flat size mail. It is usually enclosed in a mailing container such as a carton. (Also see irregular parceland machinable parcel.) … Glossary of postal terms
fletter — An industry term used to describe a mailpiece that can be classified as letter size mail but could also meet the standards for and be mailed as automation flat size mail … Glossary of postal terms
sack — A container generally used to transport flat size mail, parcels, and loose pack mail. It is made of sewn fabric (usually nylon, polyester, canvas, or plastic with an opening at one end) and is closed with a draw cord and fastener. In mail… … Glossary of postal terms
FLTS — An abbreviation used on mail container labels that identifies the contents as flat size mail … Glossary of postal terms
Flats (USPS) — The Postal Service uses the words flats and nonletters to refer to large envelopes, newsletters, and magazines. The words are interchangeable. Whatever you call them, flats must:*Have one dimension that is greater than 6 1/8 inches high OR 11 ½… … Wikipedia