It also covers procedures to verify correct presort preparation, postage payment, and corrective action taken, if required. All First-Class Mail receives expeditious handling and transportation. The USPS follows uniform guidelines for distributing and delivering mail but does not guarantee delivery within the specified time.
Local postmasters can provide more information.
Metered mail must be deposited in locations under the jurisdiction of the licensing post office, except as permitted under P030 . Permit imprint mail must be presented at a post office under P040 or P900 . 2.2 Presorted and Automation Rates First-Class Mail paid at the Presorted rate or at any automation rate must be deposited at locations and times designated by the postmaster. Metered mail must be deposited in locations under the jurisdiction of the licensing post office except as permitted in P030 . Permit imprint mail must be deposited under P040 and P900 .