Denver's flavored vape ban sends customers across city lines Public health experts hopeful Denver's flavored tobacco ban will discourage young people from using MSU Denver RED Vaping & Youth Nicotine Use Pitkin County, CO Will you vote to repeal a ban on flavored tobacco in Denver?, Referendum 310 is on your ballot this year. If a majority of voters vote yes the city will continue to ban flavored tobacco products. If Denver's city clerk says enough signatures were gathered to send repeal of tobacco flavor ban to voters