Mississippi vape law leads to ingredient changes Before the end of the year, there will be fewer vape products that can be legally sold in Mississippi. The Governor has already signed House Bill 916 into law. The law specifies 2FIRSTS U.S. vape firms appeal Mississippi synthetic nicotine ban, citing FDA authority preemption Mississippi vape shops are racing to sell non FDA approved products before deadline Stop the Vape Ban Mississippi United Mississippi ban in effect on vapes not up to FDA standards