Here is some info I found out...
The United Center welcomes all guests with General Admission (“GA”) tickets to begin arriving and forming a line no earlier than 12:00 pm. The United Center asks that all guests adhere to the following policies. GA ticketholders violating any of the following policies may be asked to surrender their line position, tickets, and may be removed from the United Center.
The GA line will begin on Honore Street, and will turn down Adams Street. The GA line will enter the arena through Gate 5 (southeast corner). See attached map.
GA ticketholders may begin lining up no earlier than 12:00 pm on each date of the show, and you must have a ticket for that evening’s performance.
Please be respectful of other guests in line at all times. No profanity, running, pushing, line jumping, horseplay, or other such unsafe behavior.
Scalping or re-selling tickets will not be permitted.
Alcoholic beverages will not be permitted in line.
You must be present to get a space in line. Guests will not be allowed to “hold” a place in line for other guests planning to arrive later.
Backpacks, large bags, and outside food and/or beverages are not allowed into the United Center, so at 4:30 pm, the United Center will ask all guests to return all such items to their vehicles.
Wristbands giving access to the main floor area (GA area) will be distributed to guests as they enter the arena once the gates are open. Floor access will be permitted through sections 109-110 only.
Guests will be randomly selected to receive a second wristband to access the Ellipse portion of the U2 stage.
Due to the nature of GA lines, the United Center staff will not settle disputes over line position. Disputes over line position will result in all involved parties going to the back of the line.
Once you are in line, you will not be allowed to leave the United Center property. If you choose to leave you will forfeit your place in line, and the United Center can not guarantee you will receive another place in line.
Once inside the arena, no pushing, moshing, or body surfing will be permitted.
Thank you for your cooperation. If you have any questions, comments or concerns during your visit, please contact the nearest United Center staff member.