36 C.F.R. § 520.13 Items to be checked.
Title 36 - Parks, Forests, and Public Property
Umbrellas, canes (not needed to assist in walking), or other objects capable of inflicting damage to property or exhibits may be required to be checked at the police station where checking facilities are provided.
Title 36: Parks, Forests, and Public Property
PART 520—RULES AND REGULATIONS GOVERNING THE BUILDINGS AND GROUNDS OF THE NATIONAL ZOOLOGICAL PARK OF THE SMITHSONIAN INSTITUTION
§ 520.13 Items to be checked.
