New USPS Tabbing Rules In Effect 9-8-2009. Read more...

• Effective September 8, 2009 - The Postal Service adopts new Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM®) to reflect changes to the construction and sealing of letter-sized booklets mailed at automation, presorted machinable or carrier route letter prices. Learn more information and see exhibits of booklet design and tabbing / sealing at the USPS site located at  http://pe.usps.com/text/dmm300/201.htm#wp1083722