The ban, which also includes fireworks and firecrackers, prohibits visitors to the Darsena docklands area from "holding, carrying, leaving on the ground, disposing of, or receiving any kind of glass bottles or containers, cans, and selfie sticks."
Food trucks, street shops and other kinds of "moving trade" were also prohibited by the ban, which was set to continue through August 13 but could "continue as needed."
"It is a renewable provision," Milan's councillor for security, Carmela Rozza said, according to The Independent. "The purpose of this ordinance is to make it a habit not to bring glass bottles or cans in the area."
Several other Italian cities have sought to crack down on littering and similar behavior, including Rome which banned late night alcohol sales and instituted a fine for people climbing on and bathing in fountains.
Dario Nardella, the mayor of Florence, looked to combat littering by hosing down the steps of the city's churches around lunchtime.
"If the tourists want to sit there, they'll get wet," Nardella said.
