Mailbox Flag Regulations

By Bryan Ordman - Updated June 05, 2017
Metallic closed mailbox with flag

Residential curbside mailboxes come in a variety of colors, shapes, and sizes. One trait they all have in common is the small pivoting flag attached to its side. Just as the United States Postal Service enforces regulations for these mailboxes, there are also regulations in place for the signal flag attached to it.

Flag Required

A mailbox signal flag is required for all privately-owned traditional, contemporary, and locked mailboxes.

Flag Positioning

All mailbox signal flags must be attached to the right side of the mailbox when facing it from the front. The flag is to be raised when outgoing mail is present in the mailbox. The flag is to be lowered by the postal worker after outgoing mail is picked up.

Flag Color

A mailbox signal flag can be any color other than shades of green, white, yellow, blue, or brown. The flag color recommended is orange or red with the flag's color having a complete contrast to that of the mailbox's color scheme.

Operational Regulations

The signal flag cannot weigh more than 2 pounds. The flag can have an automatic lowering mechanism attached to the box as long as it does not pose an interference to the postal worker's delivery routine.

About the Author

Bryan Ordman is a film school graduate of Columbia College Chicago and has been working as a freelance writer since 2007. His primary focus while attending college was screenwriting. He has written in the past primarily as a film columnist but is now regular writer for eHow and Answerbag. Ordman obtained his Bachelor of Arts from Columbia College Chicago in 2008.

Cite this Article A tool to create a citation to reference this article Cite this Article