What form do carriers need to sign for accountable items?

Carriers are required to sign for accountable items using PS Form 3867. This form is specifically designed for tracking accountable mail, which includes items like registered mail, certified mail, and other items requiring a signature upon delivery. When a carrier receives accountable items from a postal facility, they must document their receipt of these items by signing PS Form 3867. This ensures proper chain of custody and accountability for high-value or sensitive mail.

The other forms listed serve different purposes: PF Form 3876 is typically used for package intercepts, Form 3849 is a notice left for customers when a delivery attempt has been made, and the Accountable Receipt Form 3900 is not the standard form used for signing for accountable items by carriers. Each of these forms has its respective function but does not replace the need for PS Form 3867 in the context of signing for accountable items.