Fillable PS Form 3877 - Firm Mailing Book For Accountable Mail

What is a USPS Form 3877?

Firm Mailing Book for Accountable Mail Form (also called Form 3877 certificate of mailing) is an official document that lets the sender obtain the requested proof of mailing along with a list of items mailed. You can request the certificate if you are sending postcards, international items, airmail M-bags, and several other types of mail.

Editable PS Form 3877 is required for 3 or more items with additional services (if mailing simultaneously). PS Forms 3665, 3817, 3606, 3606-D can also be required (see page 4 of fillable PS form 3877).

What I need the Firm Mailing Book for Accountable Mail Form for?

• The blank is used for requesting a certificate of mailing for a limited range of items, including unregistered 1st class international mail ana packages, postcards, priority mail international envelopes and boxes, uninsured priority mail parcels, a free matter for the blind, and airmail M-boxes.

You can download Firm Mailing Book for Accountable Mail Form right from this website for free and fill it out on your computer. There’s also an option to fill this PDF online on our editor and print it or submit it electronically.

How to Fill Out the Firm Mailing Book for Accountable Mail Form?

The fillable Firm Mailing Book for Accountable Mail Form requires you to:

• Read the full instruction on pages 1-2;
• Enter your full name, actual address, and the type of mail service you use;
• List your mailings along with their postages, fee, valued, CODs, etc.;
• Attach PS Form 3877 or other forms if required by the instructions on page 4 of the form.

Organizations that work with USPS firm mailing book:

• United States Postal Service.