USPS SSA Window Practice Exam 2025 - Free Practice Questions and Study Guide.

The Postal Bulletin is the correct source for finding information on how to hang the POW (Prisoner of War) flag. The Postal Bulletin serves as an official communication tool within the USPS, providing updates, policies, and guidelines relevant to postal employees. It often includes specific information about federal laws, customs, and protocols, including those relating to flags that honor veterans and prisoners of war.

While the employee handbook might contain general employment policies and procedures, it is less likely to detail flag etiquette or protocols specifically as it pertains to the POW flag. The internal website may have various resources, but it can vary in the specificity of content and may not be the primary source for information about national observances like the POW flag. A community center, although it may promote local community events or honor related activities, is not an appropriate source for official USPS protocol regarding flag display. Thus, the Postal Bulletin stands out as the most accurate and authoritative reference for this information.