The Mail Preparation and Presortation guides are intended to help mailers and mail service providers prepare and presort their mailings according to Canada Post's requirements.

Compliance with the requirements outlined in these guides is required when using the following Canada Post services and options:

• Preparing and Depositing Orders – file import capabilities
• Machineable Mail Import File

• Incentive Lettermail
• Standard Lettermail
• Unaddressed Admail

• Addressed Admail – Machineable Presort
• Addressed Admail, Incentive Lettermail and Publications Mail – Machineable Mail
• Addressed Admail and Publications Mail – Letter Carrier Presort (LCP)
• Unaddressed Admail – Brick–Piling

• NDG Presort Online Training
• Mail Preparation and Presortation Tutorials

• Customer-supplied cardboard boxes
• Canada Post Cardboard Lettertainers
• Cardboard Lettertainers Specifications