What is the role of DD FORM 1115?

The DD FORM 1115 serves as an accountable mail receipt. This means its primary purpose is to track and verify the receipt of accountable mail, such as registered or certified mail, which has a higher level of security and requires confirmation of delivery. The form ensures that mail is properly logged and that recipients can account for sensitive items until they reach their intended destination. It's an essential tool in maintaining the integrity and security of mail operations, especially within military and governmental contexts.

While the other options refer to different aspects of mailroom operations, they do not encompass the specific function of the DD FORM 1115, which is focused on the accountability of mail rather than hours of operation, routing instructions, or serving as an inspection checklist.