Denver ban on flavored nicotine products goes into effect as the new year kicks off Lawsuit challenges Denvers flavored tobacco ban as vape shop owners claim major losses Flavored nicotine bans spread as Denver prohibition faces repeal Complete Colorado Referendum 310 results: Denver's ban on flavored nicotine survives with strong voter support Denver's city clerk says enough signatures were gathered to send repeal of tobacco flavor ban to voters Denver flavored tobacco, vape ban draws intense industry lobbying