The United States Secret Service released a list of items prohibited from the Ben Franklin Parkway during the events being held for the pope's visit to Philadelphia, including the papal Mass on Sunday, September 27th.
The same list applies for the pope's speech at Independence Mall on Saturday, September 26th.
The items are:
-Aerosols
-Ammunition
-Animals other than service/guide animals
-Backpacks and bags exceeding the size restrictions (18" x 13" x 7")
-Balloons
-Bicycles
-Hard Coolers (Soft-sided thermal coolers ARE allowed)
-Drones and other unmanned aircraft systems
-Explosives
-Firearms
-Glass, thermal or metal containers
-Laser pointers
-Mace/Pepper spray
-Packages
-Selfie Sticks
-Signs exceeding the size restrictions (5' x 3' x 1/4") made of any material except cardboard, poster board or cloth
-Structures
-Supports for signs and placards
-Toy guns
-Weapons of any kind
-Any other items determined to be a potential safety hazard
Chairs ARE allowed, but the Secret Service has some things they want you to know:
-The smaller or more compact the chair, the easier and quicker it is to verify that it is safe.
-Individuals may not arrive at security checkpoints with numerous or cumbersome chairs because screening these items will unreasonably slow the screening process for everyone else.
-Chairs that are composed of metal poles with large diameters, and poles with openings in which items could be secreted, may require excessive time to verify that they are safe.
-If we cannot verify the safety of a chair in a reasonable amount of time, it will not be permitted through the screening process.
-Additionally, chairs determined to be a "potential safety hazard" also will not be permitted (including but not limited to chairs that could, in the view of the security officer, be disassembled or broken into pieces and used to create a weapon or projectile).