The city is asking for public input on Wednesday, Sept. 26.
A proposed ordinance would prevent smoking along the four blocks of the mall and on the county courthouse lawn.
The city says tourists and businesses along the Pearl Street Mall have been complaining about cigarette butt litter and second-hand smoke in that area.
The issue is sparking passionate debates on both sides. Many residents say it infringes upon their rights.
"I have been living in Boulder my entire life, and I will smoke if I want to," Joseph Kovalchick said. "I don't care if the ban passes or not."
But there were several people on the other side of the issue. They say it would be consistent with the ideals of the city and be seen as a progressive move.
"I think in general people try to stay healthy around Boulder and Colorado for sure," Drew Horowitz said. "I don't think it's a bad thing if they pass it."
Depending on what the public has to say, an ordinance could be voted on by October. If approved, the ban would go into effect by the end of the year.
The open house will be from 5 to 6 p.m. in the Municipal Building lobby, 1777 Broadway, Boulder.
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