You must present these items for shipment to a USPS employee at a retail service counter at a Post Office location.įailure to comply may result in the return of your mailpiece.ĭo not mail prohibited dangerous goods or hazardous materials.I am ordering some boxes to use for mailing and although I usually take packages to the post office while it is open, I'd like to order the largest size that will give me the option of using USPS drop boxes after hours. Any mailpiece that requires a customs declaration form and uses POSTAGE STAMPS Any mailpiece with a customs declaration form that was not completed and submitted online Any mailpiece that weighs more than 10 oz and uses POSTAGE STAMPS Any mailpiece over one-half inch think that uses POSTAGES STAMPS export laws, DO NOT DEPOSIT the following items in this collection box: This is what a blue USPS drop box reads in a nearby residential neighborhood:ĭue to federal security regulations and U.S. Make sure any package over 1/2' does not use regular stamps. You might be able to fit a 4' tall package by 12' wide in the standard USPS drop boxes. I was able to drop in a small package with pre-printed USPS postage, the package was 3' tall. The traditional blue half circle drop boxes that have a handle to open, will have a sticker on the top that tells you what is acceptable.

But it depends on the USPS collection box, so be sure to read the restrictions on the top of the Blue mail drop box. However they may not allow you to use postage stamps, more than likely because they are more likely to fall off on packages. post office allows you to drop packages into the blue mailboxes as long as they can fit and have the prepaid postage (for example postage you print out from ebay).

Small box usps dropbox