---
type: faq
title: "Is it illegal to put flyers or business cards in mailboxes?"
description: "Yes. In the United States, federal law (Title 18, Section 1708) prohibits placing any unstamped material inside a mailbox. Mailboxes are reserved for USPS"
resource: https://www.4over4.com/faqs/business-cards/is-it-illegal-to-put-flyers-or-business-cards-in-mailboxes
tags: ["Marketing Materials", "faq"]
timestamp: 2026-07-20T18:54:40.856Z
---

# Is it illegal to put flyers or business cards in mailboxes?

Yes. In the United States, federal law (Title 18, Section 1708) prohibits placing any unstamped material inside a mailbox. Mailboxes are reserved for USPS

Part of the **Marketing Materials** hub. See [all faq concepts](index.md).

- Page type: faq
- Hub: Marketing Materials
- URL: https://www.4over4.com/faqs/business-cards/is-it-illegal-to-put-flyers-or-business-cards-in-mailboxes