Addressing Rules for Large Mail Pieces

The USPS has released new address standards for commercial flat-sized mail.

What is “Flat-Sized” mail?
Flat-sized mail (Flats) is a mail piece that is larger than 6.125 inches high or wider than 11.5 inches long.  Magazines, catalogs and large envelopes are considered flat-sized mail.  If you have questions about your mail, please call us.

Address Must Be On Top Half Of Piece

Where’s the top? Find the spine!
The top of a Self-Mailer, Catalog or Magazine is:
The upper edge of the piece when the
spine or folded edge is placed on the right.

The top of an ENVELOPE or piece with no spine is:
Either of the shorter edges regardless of horizontal or vertical orientation.

Orientation of the address
The address can be displayed vertically or horizontally on the mail piece, but cannot be placed upside-down against the top of the piece.

Always send Accurate a proof before going to press