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 Mississippi vape law leads to ingredient changes 2FIRSTS U.S. vape firms appeal Mississippi synthetic nicotine ban, citing FDA authority preemption Ban on vape sales takes effect in Mississippi Later this year a lot of vape products will be illegal to sell. Products not FDA approved are prohibited, subject to seizure, forfeiture, and destruction.