What document serves as the official source for updates to postal policies and procedures?

The Postal Bulletin is the official document that provides updates on postal policies and procedures. It serves as a critical communication tool from the USPS to its employees, ensuring they are informed about any changes, revisions, or new initiatives concerning postal operations. The Bulletin is published regularly, addressing a variety of topics relevant to postal services, and acts as a comprehensive reference for employees to stay current with operational guidelines. This makes it an essential resource for training and maintaining consistent understanding across all postal employees regarding policy changes.

In contrast, the other options do not serve the same formal purpose. The Policy Update Circular may contain updates, but it is not the primary source recognized for comprehensive policy changes or official communications. USPS News typically focuses on broader announcements or public relations rather than internal procedural updates, while the Regulatory Handbook is more specialized and not the main source for ongoing updates in policies and procedures. This distinction solidifies the Postal Bulletin’s role as the go-to document for such information within the USPS.