This specification is intended to provide you with the requirements to produce container labels for Machineable Mail containerized in Letterflatainers, flats tubs, or cardboard boxes.

Specifically, this page applies to the following services:

• Lettermail™
• Personalized Mail™
• Publications Mail™
• Postal Code Targeting

This specification also includes an example of the shipping unit (monotainer and pallet) label.

Please note: If you’re containerizing mail using presortation software recognized by our Software Evaluation and Recognition Program (SERP), refer to the SERP generated label specifications.

For more details on container and shipping unit (monotainers and pallets) labels, refer to the appropriate customer guide.

Characteristic: Flat label (continuous strips or individually produced)

Size: Width: 152 mm x Height: 67 mm (with approximately 0.5 mm tolerance for each dimension)

Colour: White

Thickness: Label paper stock requirements examples:

• Cover - Not less than 65 lbs. (175 gsm)
• Index - Not less than 90 lbs. (160 gsm)
• Bond - Not less than 32 lbs. (120 gsm)

The card must be rigid enough to allow secure retention in the mail container card holder (sleeve or frame) during handling transportation.

Printer: High-contrast Data Matrix printing capabilities (for example, thermal or laser printer)

Print colour: Black

Print instructions:

• Print on one side only using Adobe® Acrobat®
• To ensure the labels print to the correct size the print instructions must be set to “Actual size”

Label insertion: Insert the container labels in the label holder before depositing your mail.