36 CFR § 520.10 - Placards, signs, banners, and flags.

---
identifier: "/us/cfr/t36/s520.10"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "36 CFR § 520.10 - Placards, signs, banners, and flags."
title_number: 36
title_name: "Parks, Forests, and Public Property"
section_number: "520.10"
section_name: "Placards, signs, banners, and flags."
chapter_name: "SMITHSONIAN INSTITUTION"
part_number: "520"
part_name: "RULES AND REGULATIONS GOVERNING THE BUILDINGS AND GROUNDS OF THE NATIONAL ZOOLOGICAL PARK OF THE SMITHSONIAN INSTITUTION"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Secs. 1-9, 65 Stat. 634, as amended, secs. 1-4, 78 Stat. 365; 40 U.S.C. 193n-193w."
regulatory_source: "33 FR 17175, Nov. 20, 1968, unless otherwise noted."
cfr_part: "520"
---


# 520.10 Placards, signs, banners, and flags.

The displaying or carrying of placards, signs, banners, or flags is prohibited unless officially authorized.