2 Machinable and Automation Letters and Cards
2-1 Physical Standards for Machinable and Automation Letters and Cards
2-1.1 Basic Standards for Automation Letters and Cards
2-1.2 Paper Weight
2-1.3 Dimensions and Shape
2-1.4 Maximum Weight
2-1.5 Heavy Letter Mail (More Than 3 Ounces)
2-1.6 Postcard
2-1.7 Aspect Ratio
2-1.8 Wraps and Closures
2-1.9 Staples and Saddle Stitching
2-1.10 Rigid and Odd-shaped Items
2-2 Flexibility Standards for Automation Letters
2-2.1 Machinability
2-2.2 USPS Services for Flexibility Testing
2-3 Attachments on Letter-size Mailpieces
2-3.1 Use
2-3.2 Pressure-sensitive Label
2-3.3 “Sandwich” Label
2-3.4 Letter-size Piece With Attached Release Card
2-3.5 Standards for Release Cards
2-3.6 Letter-size Pieces With Perforated Pockets
2-3.7 Standards for Perforated Pockets
