230 Priority Mail International

231 General

231.1 Description

Priority Mail International is considered a parcel stream for mail exchange purposes, with the exception of the flat-rate envelope and the small flat-rate box.

231.2 Eligibility

Written correspondence having the nature of current and personal correspondence is not permitted generally in Priority Mail International items but may be sent in the Priority Mail International flat-rate envelope or small flat-rate box.

231.3 Mail Sealed Against Inspection

Only the Priority Mail International flat-rate envelope and small flat-rate box are sealed against inspection. Any other Priority Mail International item (e.g., USPS-produced large flat-rate box, USPS-produced Tyvek envelope, or customer-supplied box) is not sealed against inspection. Regardless of physical closure, the mailing of Priority Mail International items constitutes consent by the mailer to inspection of the contents.